configure does not pick compiler from R settings

[barracuda156]

UPD. The only issue is compiler choice. Configure seems to ignore both R settings and env, but when I explicitly force CC= and CXX= via adding these to configure, everything is fine and tests pass.

1. It seems that configure does not use compiler from R settings but picks OS default. This results in wrong settings (this is Rosetta, physical cpu is Intel, but build and host are ppc):

** using staged installation
checking for g++... g++
checking whether the C++ compiler works... yes
checking for C++ compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C++... yes
checking whether g++ accepts -g... yes
checking for g++ option to enable C++11 features... none needed
checking how to run the C++ preprocessor... g++ -E
checking whether the compiler supports GNU C++... (cached) yes
checking whether g++ accepts -g... (cached) yes
checking for g++ option to enable C++11 features... (cached) none needed
checking build system type... x86_64-apple-darwin10.8.0
checking host system type... x86_64-apple-darwin10.8.0
checking for gcc... gcc
checking whether the compiler supports GNU C... yes
checking whether gcc accepts -g... yes
checking for gcc option to enable C11 features... unsupported
checking for gcc option to enable C99 features... -std=gnu99
checking for x86 cpuid  output... unknown
checking for x86-AVX xgetbv  output... unknown
checking for x86 cpuid 0x00000000 output... d:756e6547:6c65746e:49656e69
checking for x86 cpuid 0x00000001 output... 106a5:1060800:ffba220b:1f8bfbff
checking whether SSE2 is supported by the processor... yes
checking whether SSE2 is supported by the processor and OS... yes
checking whether C++ compiler accepts -msse2... yes
checking for stdio.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for strings.h... yes
checking for sys/stat.h... yes
checking for sys/types.h... yes
checking for unistd.h... yes
checking for malloc.h... no
checking size of size_t... 8
checking alignment of void*... 8
checking for size_t... yes
checking for working alloca.h... yes
checking for alloca... yes
checking for working posix_memalign... yes
checking for ffs... yes
configure: creating ./config.status
config.status: creating src/Makevars
config.status: creating src/config.h

2. The package pulls in Intel intrinsics headers on PowerPC:

/opt/local/bin/g++-mp-12 -std=gnu++17 -I"/opt/local/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I"include" -I"include/sundials" -I"../inst/include" -DBOOST_DISABLE_ASSERTS -DEIGEN_NO_DEBUG -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/BH/include' -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/Rcpp/include' -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/RcppEigen/include' -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/RcppParallel/include' -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/dbarts/include' -isystem/opt/local/include/LegacySupport -I/opt/local/include  -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/RcppParallel/include' -D_REENTRANT -DSTAN_THREADS   -fPIC  -pipe -Os -arch ppc  -c bart_util.cpp -o bart_util.o
/opt/local/bin/g++-mp-12 -std=gnu++17 -I"/opt/local/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I"include" -I"include/sundials" -I"../inst/include" -DBOOST_DISABLE_ASSERTS -DEIGEN_NO_DEBUG -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/BH/include' -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/Rcpp/include' -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/RcppEigen/include' -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/RcppParallel/include' -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/dbarts/include' -isystem/opt/local/include/LegacySupport -I/opt/local/include  -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/RcppParallel/include' -D_REENTRANT -DSTAN_THREADS   -fPIC  -pipe -Os -arch ppc  -c init.cpp -o init.o
/opt/local/bin/gcc-mp-12 -I"/opt/local/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I"include" -I"include/sundials" -I"../inst/include" -DBOOST_DISABLE_ASSERTS -DEIGEN_NO_DEBUG -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/BH/include' -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/Rcpp/include' -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/RcppEigen/include' -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/RcppParallel/include' -I'/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/dbarts/include' -isystem/opt/local/include/LegacySupport -I/opt/local/include   -fPIC  -pipe -Os -arch ppc  -c misc_adaptiveRadixTree.c -o misc_adaptiveRadixTree.o
In file included from include/misc/intrinsic.h:11,
                 from misc_adaptiveRadixTree.c:51:
/opt/local/lib/gcc12/gcc/powerpc-apple-darwin10/12.2.0/include/emmintrin.h:56:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   56 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~

3. Source code seems to unconditionally use 64-bit settings:

In file included from /opt/local/Library/Frameworks/R.framework/Resources/include/R.h:70,
                 from include/ext/R.h:24,
                 from include/ext/io.h:4,
                 from misc_adaptiveRadixTree.c:53:
/opt/local/Library/Frameworks/R.framework/Resources/include/Rconfig.h: At top level:
/opt/local/Library/Frameworks/R.framework/Resources/include/Rconfig.h:26: warning: "SIZEOF_SIZE_T" redefined
   26 | #define SIZEOF_SIZE_T 4
      | 
In file included from misc_adaptiveRadixTree.c:38:
config.h:74: note: this is the location of the previous definition
   74 | #define SIZEOF_SIZE_T 8
      |

[barracuda156]

Yeah, sure enough, configure script ignores R compiler settings altogether:

This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by stan4bart configure 0.0.4, which was
generated by GNU Autoconf 2.71.  Invocation command line was

  $ ./configure

## --------- ##
## Platform. ##
## --------- ##

hostname = macmini.private
uname -m = x86_64
uname -r = 10.8.0
uname -s = Darwin
uname -v = Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64

/usr/bin/uname -p = i386
/bin/uname -X     = unknown

/bin/arch              = unknown
/usr/bin/arch -k       = unknown
/usr/convex/getsysinfo = unknown
/usr/bin/hostinfo      = Mach kernel version:
	 Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
Kernel configured for up to 6 processors.
6 processors are physically available.
6 processors are logically available.
Processor type: i486 (Intel 80486)
Processors active: 0 1 2 3 4 5
Primary memory available: 7.88 gigabytes
Default processor set: 149 tasks, 383 threads, 6 processors
Load average: 1.08, Mach factor: 4.90
/bin/machine           = unknown
/usr/bin/oslevel       = unknown
/bin/universe          = unknown

PATH: /opt/local/bin/
PATH: /opt/local/sbin/
PATH: /bin/
PATH: /sbin/
PATH: /usr/bin/
PATH: /usr/sbin/


## ----------- ##
## Core tests. ##
## ----------- ##

configure:2874: looking for aux files: config.guess config.sub
configure:2887:  trying ./tools/build-aux/
configure:2916:   ./tools/build-aux/config.guess found
configure:2916:   ./tools/build-aux/config.sub found
configure:3375: checking for g++
configure:3396: found /usr/bin/g++
configure:3407: result: g++
configure:3434: checking for C++ compiler version
configure:3443: g++ --version >&5
i686-apple-darwin10-g++-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3)
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

configure:3454: $? = 0
configure:3443: g++ -v >&5
Using built-in specs.
Target: i686-apple-darwin10
Configured with: /var/tmp/gcc/gcc-5666.3~6/src/configure --disable-checking --enable-werror --prefix=/usr --mandir=/share/man --enable-languages=c,objc,c++,obj-c++ --program-transform-name=/^[cg][^.-]*$/s/$/-4.2/ --with-slibdir=/usr/lib --build=i686-apple-darwin10 --program-prefix=i686-apple-darwin10- --host=x86_64-apple-darwin10 --target=i686-apple-darwin10 --with-gxx-include-dir=/include/c++/4.2.1
Thread model: posix
gcc version 4.2.1 (Apple Inc. build 5666) (dot 3)
configure:3454: $? = 0
configure:3443: g++ -V >&5
g++-4.2: argument to `-V' is missing
configure:3454: $? = 1
configure:3443: g++ -qversion >&5
i686-apple-darwin10-g++-4.2.1: no input files
configure:3454: $? = 1
configure:3474: checking whether the C++ compiler works
configure:3496: g++    conftest.cpp  >&5
configure:3500: $? = 0
configure:3550: result: yes
configure:3553: checking for C++ compiler default output file name
configure:3555: result: a.out
configure:3561: checking for suffix of executables
configure:3568: g++ -o conftest    conftest.cpp  >&5
configure:3572: $? = 0
configure:3595: result: 
configure:3617: checking whether we are cross compiling
configure:3625: g++ -o conftest    conftest.cpp  >&5
configure:3629: $? = 0
configure:3636: ./conftest
configure:3640: $? = 0
configure:3655: result: no
configure:3660: checking for suffix of object files
configure:3683: g++ -c   conftest.cpp >&5
configure:3687: $? = 0
configure:3709: result: o
configure:3713: checking whether the compiler supports GNU C++
configure:3733: g++ -c   conftest.cpp >&5
configure:3733: $? = 0
configure:3743: result: yes
configure:3754: checking whether g++ accepts -g
configure:3775: g++ -c -g  conftest.cpp >&5
configure:3775: $? = 0
configure:3819: result: yes
configure:3839: checking for g++ option to enable C++11 features
configure:3854: g++  -c -g -O2  conftest.cpp >&5
conftest.cpp:12:3: error: #error "Compiler does not advertise C++98 conformance"
conftest.cpp:55:3: error: #error "Compiler does not advertise C++11 conformance"
conftest.cpp:60: error: expected constructor, destructor, or type conversion before 'int'
conftest.cpp: In constructor 'cxx11test::delegate::delegate()':
conftest.cpp:72: error: type 'cxx11test::delegate' is not a direct base of 'cxx11test::delegate'
conftest.cpp: At global scope:
conftest.cpp:83: error: expected ';' before 'override'
conftest.cpp:84: error: expected `;' before '}' token
conftest.cpp:90: error: invalid pure specifier (only `= 0' is allowed) before ';' token
conftest.cpp:91: error: invalid pure specifier (only `= 0' is allowed) before ';' token
conftest.cpp:92: error: invalid pure specifier (only `= 0' is allowed) before ';' token
conftest.cpp:90: error: initializer specified for non-virtual method 'cxx11test::nocopy::nocopy()'
conftest.cpp:91: error: initializer specified for non-virtual method 'cxx11test::nocopy::nocopy(const cxx11test::nocopy&)'
conftest.cpp:92: error: initializer specified for non-virtual method 'cxx11test::nocopy& cxx11test::nocopy::operator=(const cxx11test::nocopy&)'
conftest.cpp:104: error: expected initializer before '->' token
conftest.cpp:108: error: expected nested-name-specifier before '...' token
conftest.cpp:108: error: expected '>' before '...' token
conftest.cpp:108: error: 'Args' has not been declared
conftest.cpp:108: error: expected `)' before 'rest'
conftest.cpp:108: error: expected initializer before 'rest'
conftest.cpp: In function 'int main(int, char**)':
conftest.cpp:132: error: ISO C++ forbids declaration of 'a1' with no type
conftest.cpp:133: error: ISO C++ forbids declaration of 'a2' with no type
conftest.cpp:134: error: ISO C++ forbids declaration of 'a3' with no type
conftest.cpp:134: error: invalid conversion from 'const char*' to 'int'
conftest.cpp:137: error: ISO C++ forbids declaration of 'i' with no type
conftest.cpp:137: error: invalid type argument of 'unary *'
conftest.cpp:137: error: invalid type argument of 'unary *'
conftest.cpp:139: error: 'decltype' was not declared in this scope
conftest.cpp:139: error: expected `;' before 'a4'
conftest.cpp:143: error: 'get_val' is not a member of 'cxx11test'
conftest.cpp:153: error: a function-definition is not allowed here before ':' token
conftest.cpp:154: error: expected primary-expression before '}' token
conftest.cpp:154: error: expected `;' before '}' token
conftest.cpp:154: error: expected primary-expression before '}' token
conftest.cpp:154: error: expected `)' before '}' token
conftest.cpp:154: error: expected primary-expression before '}' token
conftest.cpp:154: error: expected `;' before '}' token
conftest.cpp:158: error: expected primary-expression before '[' token
conftest.cpp:158: error: expected primary-expression before ']' token
conftest.cpp:158: error: expected primary-expression before 'int'
conftest.cpp:160: error: expected primary-expression before '[' token
conftest.cpp:160: error: expected primary-expression before ']' token
conftest.cpp:160: error: expected primary-expression before 'double'
conftest.cpp:162: error: expected primary-expression before '[' token
conftest.cpp:162: error: expected primary-expression before '=' token
conftest.cpp:162: error: expected primary-expression before ']' token
conftest.cpp:162: error: expected primary-expression before 'double'
conftest.cpp:167: error: 'cxx11test::sum' has not been declared
conftest.cpp:168: error: ISO C++ forbids declaration of 'a' with no type
conftest.cpp:168: error: 'sum' was not declared in this scope
conftest.cpp:169: error: ISO C++ forbids declaration of 'b' with no type
conftest.cpp:170: error: ISO C++ forbids declaration of 'c' with no type
conftest.cpp:184: error: 'nullptr' was not declared in this scope
conftest.cpp:188: error: '>>' should be '> >' within a nested template argument list
conftest.cpp:188: error: '<::' cannot begin a template-argument list
conftest.cpp:188: note: '<:' is an alternate spelling for '['. Insert whitespace between '<' and '::'
conftest.cpp:188: note: (if you use -fpermissive G++ will accept your code)
conftest.cpp:192: error: 'u8' was not declared in this scope
conftest.cpp:192: error: expected ',' or ';' before string constant
conftest.cpp:193: error: 'char16_t' was not declared in this scope
conftest.cpp:193: error: expected `;' before 'const'
conftest.cpp:194: error: 'char32_t' was not declared in this scope
conftest.cpp:194: error: expected `;' before 'const'
configure:3854: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "stan4bart"
| #define PACKAGE_TARNAME "stan4bart"
| #define PACKAGE_VERSION "0.0.4"
| #define PACKAGE_STRING "stan4bart 0.0.4"
| #define PACKAGE_BUGREPORT "vdorie@gmail.com"
| #define PACKAGE_URL ""
| /* end confdefs.h.  */
| 
| // Does the compiler advertise C++98 conformance?
| #if !defined __cplusplus || __cplusplus < 199711L
| # error "Compiler does not advertise C++98 conformance"
| #endif
| 
| // These inclusions are to reject old compilers that
| // lack the unsuffixed header files.
| #include <cstdlib>
| #include <exception>
| 
| // <cassert> and <cstring> are *not* freestanding headers in C++98.
| extern void assert (int);
| namespace std {
|   extern int strcmp (const char *, const char *);
| }
| 
| // Namespaces, exceptions, and templates were all added after "C++ 2.0".
| using std::exception;
| using std::strcmp;
| 
| namespace {
| 
| void test_exception_syntax()
| {
|   try {
|     throw "test";
|   } catch (const char *s) {
|     // Extra parentheses suppress a warning when building autoconf itself,
|     // due to lint rules shared with more typical C programs.
|     assert (!(strcmp) (s, "test"));
|   }
| }
| 
| template <typename T> struct test_template
| {
|   T const val;
|   explicit test_template(T t) : val(t) {}
|   template <typename U> T add(U u) { return static_cast<T>(u) + val; }
| };
| 
| } // anonymous namespace
| 
| 
| // Does the compiler advertise C++ 2011 conformance?
| #if !defined __cplusplus || __cplusplus < 201103L
| # error "Compiler does not advertise C++11 conformance"
| #endif
| 
| namespace cxx11test
| {
|   constexpr int get_val() { return 20; }
| 
|   struct testinit
|   {
|     int i;
|     double d;
|   };
| 
|   class delegate
|   {
|   public:
|     delegate(int n) : n(n) {}
|     delegate(): delegate(2354) {}
| 
|     virtual int getval() { return this->n; };
|   protected:
|     int n;
|   };
| 
|   class overridden : public delegate
|   {
|   public:
|     overridden(int n): delegate(n) {}
|     virtual int getval() override final { return this->n * 2; }
|   };
| 
|   class nocopy
|   {
|   public:
|     nocopy(int i): i(i) {}
|     nocopy() = default;
|     nocopy(const nocopy&) = delete;
|     nocopy & operator=(const nocopy&) = delete;
|   private:
|     int i;
|   };
| 
|   // for testing lambda expressions
|   template <typename Ret, typename Fn> Ret eval(Fn f, Ret v)
|   {
|     return f(v);
|   }
| 
|   // for testing variadic templates and trailing return types
|   template <typename V> auto sum(V first) -> V
|   {
|     return first;
|   }
|   template <typename V, typename... Args> auto sum(V first, Args... rest) -> V
|   {
|     return first + sum(rest...);
|   }
| }
| 
| 
| int
| main (int argc, char **argv)
| {
|   int ok = 0;
|   
|   assert (argc);
|   assert (! argv[0]);
| {
|   test_exception_syntax ();
|   test_template<double> tt (2.0);
|   assert (tt.add (4) == 6.0);
|   assert (true && !false);
| }
| 
|   
| {
|   // Test auto and decltype
|   auto a1 = 6538;
|   auto a2 = 48573953.4;
|   auto a3 = "String literal";
| 
|   int total = 0;
|   for (auto i = a3; *i; ++i) { total += *i; }
| 
|   decltype(a2) a4 = 34895.034;
| }
| {
|   // Test constexpr
|   short sa[cxx11test::get_val()] = { 0 };
| }
| {
|   // Test initializer lists
|   cxx11test::testinit il = { 4323, 435234.23544 };
| }
| {
|   // Test range-based for
|   int array[] = {9, 7, 13, 15, 4, 18, 12, 10, 5, 3,
|                  14, 19, 17, 8, 6, 20, 16, 2, 11, 1};
|   for (auto &x : array) { x += 23; }
| }
| {
|   // Test lambda expressions
|   using cxx11test::eval;
|   assert (eval ([](int x) { return x*2; }, 21) == 42);
|   double d = 2.0;
|   assert (eval ([&](double x) { return d += x; }, 3.0) == 5.0);
|   assert (d == 5.0);
|   assert (eval ([=](double x) mutable { return d += x; }, 4.0) == 9.0);
|   assert (d == 5.0);
| }
| {
|   // Test use of variadic templates
|   using cxx11test::sum;
|   auto a = sum(1);
|   auto b = sum(1, 2);
|   auto c = sum(1.0, 2.0, 3.0);
| }
| {
|   // Test constructor delegation
|   cxx11test::delegate d1;
|   cxx11test::delegate d2();
|   cxx11test::delegate d3(45);
| }
| {
|   // Test override and final
|   cxx11test::overridden o1(55464);
| }
| {
|   // Test nullptr
|   char *c = nullptr;
| }
| {
|   // Test template brackets
|   test_template<::test_template<int>> v(test_template<int>(12));
| }
| {
|   // Unicode literals
|   char const *utf8 = u8"UTF-8 string \u2500";
|   char16_t const *utf16 = u"UTF-8 string \u2500";
|   char32_t const *utf32 = U"UTF-32 string \u2500";
| }
| 
|   return ok;
| }
| 
configure:3872: result: none needed
configure:3942: checking how to run the C++ preprocessor
configure:3964: g++ -E  conftest.cpp
configure:3964: $? = 0
configure:3979: g++ -E  conftest.cpp
conftest.cpp:9:28: error: ac_nonexistent.h: No such file or directory
configure:3979: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "stan4bart"
| #define PACKAGE_TARNAME "stan4bart"
| #define PACKAGE_VERSION "0.0.4"
| #define PACKAGE_STRING "stan4bart 0.0.4"
| #define PACKAGE_BUGREPORT "vdorie@gmail.com"
| #define PACKAGE_URL ""
| /* end confdefs.h.  */
| #include <ac_nonexistent.h>
configure:4006: result: g++ -E
configure:4020: g++ -E  conftest.cpp
configure:4020: $? = 0
configure:4035: g++ -E  conftest.cpp
conftest.cpp:9:28: error: ac_nonexistent.h: No such file or directory
configure:4035: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "stan4bart"
| #define PACKAGE_TARNAME "stan4bart"
| #define PACKAGE_VERSION "0.0.4"
| #define PACKAGE_STRING "stan4bart 0.0.4"
| #define PACKAGE_BUGREPORT "vdorie@gmail.com"
| #define PACKAGE_URL ""
| /* end confdefs.h.  */
| #include <ac_nonexistent.h>
configure:4189: checking for C++ compiler version
configure:4198: g++ --version >&5
i686-apple-darwin10-g++-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3)
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

configure:4209: $? = 0
configure:4198: g++ -v >&5
Using built-in specs.
Target: i686-apple-darwin10
Configured with: /var/tmp/gcc/gcc-5666.3~6/src/configure --disable-checking --enable-werror --prefix=/usr --mandir=/share/man --enable-languages=c,objc,c++,obj-c++ --program-transform-name=/^[cg][^.-]*$/s/$/-4.2/ --with-slibdir=/usr/lib --build=i686-apple-darwin10 --program-prefix=i686-apple-darwin10- --host=x86_64-apple-darwin10 --target=i686-apple-darwin10 --with-gxx-include-dir=/include/c++/4.2.1
Thread model: posix
gcc version 4.2.1 (Apple Inc. build 5666) (dot 3)
configure:4209: $? = 0
configure:4198: g++ -V >&5
g++-4.2: argument to `-V' is missing
configure:4209: $? = 1
configure:4198: g++ -qversion >&5
i686-apple-darwin10-g++-4.2.1: no input files
configure:4209: $? = 1
configure:4213: checking whether the compiler supports GNU C++
configure:4243: result: yes
configure:4254: checking whether g++ accepts -g
configure:4319: result: yes
configure:4339: checking for g++ option to enable C++11 features
configure:4372: result: none needed
configure:4444: checking build system type
configure:4459: result: x86_64-apple-darwin10.8.0
configure:4479: checking host system type
configure:4493: result: x86_64-apple-darwin10.8.0
configure:4575: checking for gcc
configure:4596: found /usr/bin/gcc
configure:4607: result: gcc
configure:4960: checking for C compiler version
configure:4969: gcc --version >&5
i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3)
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

configure:4980: $? = 0
configure:4969: gcc -v >&5
Using built-in specs.
Target: i686-apple-darwin10
Configured with: /var/tmp/gcc/gcc-5666.3~6/src/configure --disable-checking --enable-werror --prefix=/usr --mandir=/share/man --enable-languages=c,objc,c++,obj-c++ --program-transform-name=/^[cg][^.-]*$/s/$/-4.2/ --with-slibdir=/usr/lib --build=i686-apple-darwin10 --program-prefix=i686-apple-darwin10- --host=x86_64-apple-darwin10 --target=i686-apple-darwin10 --with-gxx-include-dir=/include/c++/4.2.1
Thread model: posix
gcc version 4.2.1 (Apple Inc. build 5666) (dot 3)
configure:4980: $? = 0
configure:4969: gcc -V >&5
gcc-4.2: argument to `-V' is missing
configure:4980: $? = 1
configure:4969: gcc -qversion >&5
i686-apple-darwin10-gcc-4.2.1: no input files
configure:4980: $? = 1
configure:4969: gcc -version >&5
i686-apple-darwin10-gcc-4.2.1: no input files
configure:4980: $? = 1
configure:4984: checking whether the compiler supports GNU C
configure:5004: gcc -c   conftest.c >&5
configure:5004: $? = 0
configure:5014: result: yes
configure:5025: checking whether gcc accepts -g
configure:5046: gcc -c -g  conftest.c >&5
configure:5046: $? = 0
configure:5090: result: yes
configure:5110: checking for gcc option to enable C11 features
configure:5125: gcc  -c -g -O2  conftest.c >&5
conftest.c:61:3: error: #error "Compiler does not advertise C99 conformance"
conftest.c:116: error: expected ';', ',' or ')' before 'text'
conftest.c:165:3: error: #error "Compiler does not advertise C11 conformance"
conftest.c: In function '_Alignas':
conftest.c:169: error: expected declaration specifiers before 'aligned_as_double'
conftest.c:170: error: expected declaration specifiers or '...' before numeric constant
conftest.c:170: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'no_special_alignment'
conftest.c:171: error: storage class specified for parameter 'aligned_as_int'
conftest.c:172: error: expected declaration specifiers or '...' before numeric constant
conftest.c:172: error: expected '=', ',', ';', 'asm' or '__attribute__' before '_Alignas'
conftest.c:177: error: expected expression before 'int'
conftest.c:177: error: enumerator value for 'int_alignment' is not an integer constant
conftest.c:178: error: expected expression before 'int'
conftest.c:178: error: enumerator value for 'int_array_alignment' is not an integer constant
conftest.c:179: error: expected expression before 'char'
conftest.c:180: error: enumerator value for 'char_alignment' is not an integer constant
conftest.c:180: warning: empty declaration
conftest.c:181: error: expected declaration specifiers before '_Static_assert'
conftest.c:184: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'does_not_return'
conftest.c:190: error: expected specifier-qualifier-list before '_Static_assert'
conftest.c:193: warning: empty declaration
conftest.c:197: error: parameter 'utf8_literal' is initialized
conftest.c:197: error: 'syntax' undeclared (first use in this function)
conftest.c:197: error: (Each undeclared identifier is reported only once
conftest.c:197: error: for each function it appears in.)
conftest.c:197: error: expected ',' or ';' before 'error'
conftest.c:200: error: storage class specified for parameter 'long_ptr'
conftest.c:201: error: storage class specified for parameter 'long_ptr'
conftest.c:201: error: redefinition of parameter 'long_ptr'
conftest.c:200: error: previous definition of 'long_ptr' was here
conftest.c:202: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'long_ptr'
conftest.c:217: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
conftest.c:269: error: old-style parameter declarations in prototyped function definition
conftest.c:169: error: parameter name omitted
conftest.c:269: error: expected '{' at end of input
configure:5125: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "stan4bart"
| #define PACKAGE_TARNAME "stan4bart"
| #define PACKAGE_VERSION "0.0.4"
| #define PACKAGE_STRING "stan4bart 0.0.4"
| #define PACKAGE_BUGREPORT "vdorie@gmail.com"
| #define PACKAGE_URL ""
| /* end confdefs.h.  */
| 
| /* Does the compiler advertise C89 conformance?
|    Do not test the value of __STDC__, because some compilers set it to 0
|    while being otherwise adequately conformant. */
| #if !defined __STDC__
| # error "Compiler does not advertise C89 conformance"
| #endif
| 
| #include <stddef.h>
| #include <stdarg.h>
| struct stat;
| /* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
| struct buf { int x; };
| struct buf * (*rcsopen) (struct buf *, struct stat *, int);
| static char *e (p, i)
|      char **p;
|      int i;
| {
|   return p[i];
| }
| static char *f (char * (*g) (char **, int), char **p, ...)
| {
|   char *s;
|   va_list v;
|   va_start (v,p);
|   s = g (p, va_arg (v,int));
|   va_end (v);
|   return s;
| }
| 
| /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
|    function prototypes and stuff, but not \xHH hex character constants.
|    These do not provoke an error unfortunately, instead are silently treated
|    as an "x".  The following induces an error, until -std is added to get
|    proper ANSI mode.  Curiously \x00 != x always comes out true, for an
|    array size at least.  It is necessary to write \x00 == 0 to get something
|    that is true only with -std.  */
| int osf4_cc_array ['\x00' == 0 ? 1 : -1];
| 
| /* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
|    inside strings and character constants.  */
| #define FOO(x) 'x'
| int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
| 
| int test (int i, double x);
| struct s1 {int (*f) (int a);};
| struct s2 {int (*f) (double a);};
| int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int),
|                int, int);
| 
| // Does the compiler advertise C99 conformance?
| #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
| # error "Compiler does not advertise C99 conformance"
| #endif
| 
| #include <stdbool.h>
| extern int puts (const char *);
| extern int printf (const char *, ...);
| extern int dprintf (int, const char *, ...);
| extern void *malloc (size_t);
| 
| // Check varargs macros.  These examples are taken from C99 6.10.3.5.
| // dprintf is used instead of fprintf to avoid needing to declare
| // FILE and stderr.
| #define debug(...) dprintf (2, __VA_ARGS__)
| #define showlist(...) puts (#__VA_ARGS__)
| #define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
| static void
| test_varargs_macros (void)
| {
|   int x = 1234;
|   int y = 5678;
|   debug ("Flag");
|   debug ("X = %d\n", x);
|   showlist (The first, second, and third items.);
|   report (x>y, "x is %d but y is %d", x, y);
| }
| 
| // Check long long types.
| #define BIG64 18446744073709551615ull
| #define BIG32 4294967295ul
| #define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
| #if !BIG_OK
|   #error "your preprocessor is broken"
| #endif
| #if BIG_OK
| #else
|   #error "your preprocessor is broken"
| #endif
| static long long int bignum = -9223372036854775807LL;
| static unsigned long long int ubignum = BIG64;
| 
| struct incomplete_array
| {
|   int datasize;
|   double data[];
| };
| 
| struct named_init {
|   int number;
|   const wchar_t *name;
|   double average;
| };
| 
| typedef const char *ccp;
| 
| static inline int
| test_restrict (ccp restrict text)
| {
|   // See if C++-style comments work.
|   // Iterate through items via the restricted pointer.
|   // Also check for declarations in for loops.
|   for (unsigned int i = 0; *(text+i) != '\0'; ++i)
|     continue;
|   return 0;
| }
| 
| // Check varargs and va_copy.
| static bool
| test_varargs (const char *format, ...)
| {
|   va_list args;
|   va_start (args, format);
|   va_list args_copy;
|   va_copy (args_copy, args);
| 
|   const char *str = "";
|   int number = 0;
|   float fnumber = 0;
| 
|   while (*format)
|     {
|       switch (*format++)
| 	{
| 	case 's': // string
| 	  str = va_arg (args_copy, const char *);
| 	  break;
| 	case 'd': // int
| 	  number = va_arg (args_copy, int);
| 	  break;
| 	case 'f': // float
| 	  fnumber = va_arg (args_copy, double);
| 	  break;
| 	default:
| 	  break;
| 	}
|     }
|   va_end (args_copy);
|   va_end (args);
| 
|   return *str && number && fnumber;
| }
| 
| 
| // Does the compiler advertise C11 conformance?
| #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
| # error "Compiler does not advertise C11 conformance"
| #endif
| 
| // Check _Alignas.
| char _Alignas (double) aligned_as_double;
| char _Alignas (0) no_special_alignment;
| extern char aligned_as_int;
| char _Alignas (0) _Alignas (int) aligned_as_int;
| 
| // Check _Alignof.
| enum
| {
|   int_alignment = _Alignof (int),
|   int_array_alignment = _Alignof (int[100]),
|   char_alignment = _Alignof (char)
| };
| _Static_assert (0 < -_Alignof (int), "_Alignof is signed");
| 
| // Check _Noreturn.
| int _Noreturn does_not_return (void) { for (;;) continue; }
| 
| // Check _Static_assert.
| struct test_static_assert
| {
|   int x;
|   _Static_assert (sizeof (int) <= sizeof (long int),
|                   "_Static_assert does not work in struct");
|   long int y;
| };
| 
| // Check UTF-8 literals.
| #define u8 syntax error!
| char const utf8_literal[] = u8"happens to be ASCII" "another string";
| 
| // Check duplicate typedefs.
| typedef long *long_ptr;
| typedef long int *long_ptr;
| typedef long_ptr long_ptr;
| 
| // Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1.
| struct anonymous
| {
|   union {
|     struct { int i; int j; };
|     struct { int k; long int l; } w;
|   };
|   int m;
| } v1;
| 
| 
| int
| main (int argc, char **argv)
| {
|   int ok = 0;
|   
| ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
| 
|   
|   // Check bool.
|   _Bool success = false;
|   success |= (argc != 0);
| 
|   // Check restrict.
|   if (test_restrict ("String literal") == 0)
|     success = true;
|   char *restrict newvar = "Another string";
| 
|   // Check varargs.
|   success &= test_varargs ("s, d' f .", "string", 65, 34.234);
|   test_varargs_macros ();
| 
|   // Check flexible array members.
|   struct incomplete_array *ia =
|     malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
|   ia->datasize = 10;
|   for (int i = 0; i < ia->datasize; ++i)
|     ia->data[i] = i * 1.234;
| 
|   // Check named initializers.
|   struct named_init ni = {
|     .number = 34,
|     .name = L"Test wide string",
|     .average = 543.34343,
|   };
| 
|   ni.number = 58;
| 
|   int dynamic_array[ni.number];
|   dynamic_array[0] = argv[0][0];
|   dynamic_array[ni.number - 1] = 543;
| 
|   // work around unused variable warnings
|   ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x'
| 	 || dynamic_array[ni.number - 1] != 543);
| 
|   
|   _Static_assert ((offsetof (struct anonymous, i)
| 		   == offsetof (struct anonymous, w.k)),
| 		  "Anonymous union alignment botch");
|   v1.i = 2;
|   v1.w.k = 5;
|   ok |= v1.i != 5;
| 
|   return ok;
| }
| 
configure:5125: gcc -std=gnu11 -c -g -O2  conftest.c >&5
cc1: error: unrecognized command line option "-std=gnu11"
configure:5125: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "stan4bart"
| #define PACKAGE_TARNAME "stan4bart"
| #define PACKAGE_VERSION "0.0.4"
| #define PACKAGE_STRING "stan4bart 0.0.4"
| #define PACKAGE_BUGREPORT "vdorie@gmail.com"
| #define PACKAGE_URL ""
| /* end confdefs.h.  */
| 
| /* Does the compiler advertise C89 conformance?
|    Do not test the value of __STDC__, because some compilers set it to 0
|    while being otherwise adequately conformant. */
| #if !defined __STDC__
| # error "Compiler does not advertise C89 conformance"
| #endif
| 
| #include <stddef.h>
| #include <stdarg.h>
| struct stat;
| /* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
| struct buf { int x; };
| struct buf * (*rcsopen) (struct buf *, struct stat *, int);
| static char *e (p, i)
|      char **p;
|      int i;
| {
|   return p[i];
| }
| static char *f (char * (*g) (char **, int), char **p, ...)
| {
|   char *s;
|   va_list v;
|   va_start (v,p);
|   s = g (p, va_arg (v,int));
|   va_end (v);
|   return s;
| }
| 
| /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
|    function prototypes and stuff, but not \xHH hex character constants.
|    These do not provoke an error unfortunately, instead are silently treated
|    as an "x".  The following induces an error, until -std is added to get
|    proper ANSI mode.  Curiously \x00 != x always comes out true, for an
|    array size at least.  It is necessary to write \x00 == 0 to get something
|    that is true only with -std.  */
| int osf4_cc_array ['\x00' == 0 ? 1 : -1];
| 
| /* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
|    inside strings and character constants.  */
| #define FOO(x) 'x'
| int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
| 
| int test (int i, double x);
| struct s1 {int (*f) (int a);};
| struct s2 {int (*f) (double a);};
| int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int),
|                int, int);
| 
| // Does the compiler advertise C99 conformance?
| #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
| # error "Compiler does not advertise C99 conformance"
| #endif
| 
| #include <stdbool.h>
| extern int puts (const char *);
| extern int printf (const char *, ...);
| extern int dprintf (int, const char *, ...);
| extern void *malloc (size_t);
| 
| // Check varargs macros.  These examples are taken from C99 6.10.3.5.
| // dprintf is used instead of fprintf to avoid needing to declare
| // FILE and stderr.
| #define debug(...) dprintf (2, __VA_ARGS__)
| #define showlist(...) puts (#__VA_ARGS__)
| #define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
| static void
| test_varargs_macros (void)
| {
|   int x = 1234;
|   int y = 5678;
|   debug ("Flag");
|   debug ("X = %d\n", x);
|   showlist (The first, second, and third items.);
|   report (x>y, "x is %d but y is %d", x, y);
| }
| 
| // Check long long types.
| #define BIG64 18446744073709551615ull
| #define BIG32 4294967295ul
| #define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
| #if !BIG_OK
|   #error "your preprocessor is broken"
| #endif
| #if BIG_OK
| #else
|   #error "your preprocessor is broken"
| #endif
| static long long int bignum = -9223372036854775807LL;
| static unsigned long long int ubignum = BIG64;
| 
| struct incomplete_array
| {
|   int datasize;
|   double data[];
| };
| 
| struct named_init {
|   int number;
|   const wchar_t *name;
|   double average;
| };
| 
| typedef const char *ccp;
| 
| static inline int
| test_restrict (ccp restrict text)
| {
|   // See if C++-style comments work.
|   // Iterate through items via the restricted pointer.
|   // Also check for declarations in for loops.
|   for (unsigned int i = 0; *(text+i) != '\0'; ++i)
|     continue;
|   return 0;
| }
| 
| // Check varargs and va_copy.
| static bool
| test_varargs (const char *format, ...)
| {
|   va_list args;
|   va_start (args, format);
|   va_list args_copy;
|   va_copy (args_copy, args);
| 
|   const char *str = "";
|   int number = 0;
|   float fnumber = 0;
| 
|   while (*format)
|     {
|       switch (*format++)
| 	{
| 	case 's': // string
| 	  str = va_arg (args_copy, const char *);
| 	  break;
| 	case 'd': // int
| 	  number = va_arg (args_copy, int);
| 	  break;
| 	case 'f': // float
| 	  fnumber = va_arg (args_copy, double);
| 	  break;
| 	default:
| 	  break;
| 	}
|     }
|   va_end (args_copy);
|   va_end (args);
| 
|   return *str && number && fnumber;
| }
| 
| 
| // Does the compiler advertise C11 conformance?
| #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
| # error "Compiler does not advertise C11 conformance"
| #endif
| 
| // Check _Alignas.
| char _Alignas (double) aligned_as_double;
| char _Alignas (0) no_special_alignment;
| extern char aligned_as_int;
| char _Alignas (0) _Alignas (int) aligned_as_int;
| 
| // Check _Alignof.
| enum
| {
|   int_alignment = _Alignof (int),
|   int_array_alignment = _Alignof (int[100]),
|   char_alignment = _Alignof (char)
| };
| _Static_assert (0 < -_Alignof (int), "_Alignof is signed");
| 
| // Check _Noreturn.
| int _Noreturn does_not_return (void) { for (;;) continue; }
| 
| // Check _Static_assert.
| struct test_static_assert
| {
|   int x;
|   _Static_assert (sizeof (int) <= sizeof (long int),
|                   "_Static_assert does not work in struct");
|   long int y;
| };
| 
| // Check UTF-8 literals.
| #define u8 syntax error!
| char const utf8_literal[] = u8"happens to be ASCII" "another string";
| 
| // Check duplicate typedefs.
| typedef long *long_ptr;
| typedef long int *long_ptr;
| typedef long_ptr long_ptr;
| 
| // Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1.
| struct anonymous
| {
|   union {
|     struct { int i; int j; };
|     struct { int k; long int l; } w;
|   };
|   int m;
| } v1;
| 
| 
| int
| main (int argc, char **argv)
| {
|   int ok = 0;
|   
| ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
| 
|   
|   // Check bool.
|   _Bool success = false;
|   success |= (argc != 0);
| 
|   // Check restrict.
|   if (test_restrict ("String literal") == 0)
|     success = true;
|   char *restrict newvar = "Another string";
| 
|   // Check varargs.
|   success &= test_varargs ("s, d' f .", "string", 65, 34.234);
|   test_varargs_macros ();
| 
|   // Check flexible array members.
|   struct incomplete_array *ia =
|     malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
|   ia->datasize = 10;
|   for (int i = 0; i < ia->datasize; ++i)
|     ia->data[i] = i * 1.234;
| 
|   // Check named initializers.
|   struct named_init ni = {
|     .number = 34,
|     .name = L"Test wide string",
|     .average = 543.34343,
|   };
| 
|   ni.number = 58;
| 
|   int dynamic_array[ni.number];
|   dynamic_array[0] = argv[0][0];
|   dynamic_array[ni.number - 1] = 543;
| 
|   // work around unused variable warnings
|   ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x'
| 	 || dynamic_array[ni.number - 1] != 543);
| 
|   
|   _Static_assert ((offsetof (struct anonymous, i)
| 		   == offsetof (struct anonymous, w.k)),
| 		  "Anonymous union alignment botch");
|   v1.i = 2;
|   v1.w.k = 5;
|   ok |= v1.i != 5;
| 
|   return ok;
| }
| 
configure:5138: result: unsupported
configure:5156: checking for gcc option to enable C99 features
configure:5171: gcc  -c -g -O2  conftest.c >&5
conftest.c:61:3: error: #error "Compiler does not advertise C99 conformance"
conftest.c:116: error: expected ';', ',' or ')' before 'text'
conftest.c: In function 'main':
conftest.c:178: error: nested functions are disabled, use -fnested-functions to re-enable
conftest.c:178: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'newvar'
conftest.c:178: error: 'newvar' undeclared (first use in this function)
conftest.c:178: error: (Each undeclared identifier is reported only once
conftest.c:178: error: for each function it appears in.)
conftest.c:188: error: 'for' loop initial declaration used outside C99 mode
configure:5171: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "stan4bart"
| #define PACKAGE_TARNAME "stan4bart"
| #define PACKAGE_VERSION "0.0.4"
| #define PACKAGE_STRING "stan4bart 0.0.4"
| #define PACKAGE_BUGREPORT "vdorie@gmail.com"
| #define PACKAGE_URL ""
| /* end confdefs.h.  */
| 
| /* Does the compiler advertise C89 conformance?
|    Do not test the value of __STDC__, because some compilers set it to 0
|    while being otherwise adequately conformant. */
| #if !defined __STDC__
| # error "Compiler does not advertise C89 conformance"
| #endif
| 
| #include <stddef.h>
| #include <stdarg.h>
| struct stat;
| /* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
| struct buf { int x; };
| struct buf * (*rcsopen) (struct buf *, struct stat *, int);
| static char *e (p, i)
|      char **p;
|      int i;
| {
|   return p[i];
| }
| static char *f (char * (*g) (char **, int), char **p, ...)
| {
|   char *s;
|   va_list v;
|   va_start (v,p);
|   s = g (p, va_arg (v,int));
|   va_end (v);
|   return s;
| }
| 
| /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
|    function prototypes and stuff, but not \xHH hex character constants.
|    These do not provoke an error unfortunately, instead are silently treated
|    as an "x".  The following induces an error, until -std is added to get
|    proper ANSI mode.  Curiously \x00 != x always comes out true, for an
|    array size at least.  It is necessary to write \x00 == 0 to get something
|    that is true only with -std.  */
| int osf4_cc_array ['\x00' == 0 ? 1 : -1];
| 
| /* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
|    inside strings and character constants.  */
| #define FOO(x) 'x'
| int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
| 
| int test (int i, double x);
| struct s1 {int (*f) (int a);};
| struct s2 {int (*f) (double a);};
| int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int),
|                int, int);
| 
| // Does the compiler advertise C99 conformance?
| #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
| # error "Compiler does not advertise C99 conformance"
| #endif
| 
| #include <stdbool.h>
| extern int puts (const char *);
| extern int printf (const char *, ...);
| extern int dprintf (int, const char *, ...);
| extern void *malloc (size_t);
| 
| // Check varargs macros.  These examples are taken from C99 6.10.3.5.
| // dprintf is used instead of fprintf to avoid needing to declare
| // FILE and stderr.
| #define debug(...) dprintf (2, __VA_ARGS__)
| #define showlist(...) puts (#__VA_ARGS__)
| #define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
| static void
| test_varargs_macros (void)
| {
|   int x = 1234;
|   int y = 5678;
|   debug ("Flag");
|   debug ("X = %d\n", x);
|   showlist (The first, second, and third items.);
|   report (x>y, "x is %d but y is %d", x, y);
| }
| 
| // Check long long types.
| #define BIG64 18446744073709551615ull
| #define BIG32 4294967295ul
| #define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
| #if !BIG_OK
|   #error "your preprocessor is broken"
| #endif
| #if BIG_OK
| #else
|   #error "your preprocessor is broken"
| #endif
| static long long int bignum = -9223372036854775807LL;
| static unsigned long long int ubignum = BIG64;
| 
| struct incomplete_array
| {
|   int datasize;
|   double data[];
| };
| 
| struct named_init {
|   int number;
|   const wchar_t *name;
|   double average;
| };
| 
| typedef const char *ccp;
| 
| static inline int
| test_restrict (ccp restrict text)
| {
|   // See if C++-style comments work.
|   // Iterate through items via the restricted pointer.
|   // Also check for declarations in for loops.
|   for (unsigned int i = 0; *(text+i) != '\0'; ++i)
|     continue;
|   return 0;
| }
| 
| // Check varargs and va_copy.
| static bool
| test_varargs (const char *format, ...)
| {
|   va_list args;
|   va_start (args, format);
|   va_list args_copy;
|   va_copy (args_copy, args);
| 
|   const char *str = "";
|   int number = 0;
|   float fnumber = 0;
| 
|   while (*format)
|     {
|       switch (*format++)
| 	{
| 	case 's': // string
| 	  str = va_arg (args_copy, const char *);
| 	  break;
| 	case 'd': // int
| 	  number = va_arg (args_copy, int);
| 	  break;
| 	case 'f': // float
| 	  fnumber = va_arg (args_copy, double);
| 	  break;
| 	default:
| 	  break;
| 	}
|     }
|   va_end (args_copy);
|   va_end (args);
| 
|   return *str && number && fnumber;
| }
| 
| 
| int
| main (int argc, char **argv)
| {
|   int ok = 0;
|   
| ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
| 
|   
|   // Check bool.
|   _Bool success = false;
|   success |= (argc != 0);
| 
|   // Check restrict.
|   if (test_restrict ("String literal") == 0)
|     success = true;
|   char *restrict newvar = "Another string";
| 
|   // Check varargs.
|   success &= test_varargs ("s, d' f .", "string", 65, 34.234);
|   test_varargs_macros ();
| 
|   // Check flexible array members.
|   struct incomplete_array *ia =
|     malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
|   ia->datasize = 10;
|   for (int i = 0; i < ia->datasize; ++i)
|     ia->data[i] = i * 1.234;
| 
|   // Check named initializers.
|   struct named_init ni = {
|     .number = 34,
|     .name = L"Test wide string",
|     .average = 543.34343,
|   };
| 
|   ni.number = 58;
| 
|   int dynamic_array[ni.number];
|   dynamic_array[0] = argv[0][0];
|   dynamic_array[ni.number - 1] = 543;
| 
|   // work around unused variable warnings
|   ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x'
| 	 || dynamic_array[ni.number - 1] != 543);
| 
|   return ok;
| }
| 
configure:5171: gcc -std=gnu99 -c -g -O2  conftest.c >&5
configure:5171: $? = 0
configure:5192: result: -std=gnu99
configure:5261: checking for x86 cpuid  output
configure:5295: gcc -std=gnu99 -o conftest -g -O2   conftest.c  >&5
conftest.c: In function 'main':
conftest.c:14: error: expected expression before ',' token
configure:5295: $? = 1
configure: program exited with status 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "stan4bart"
| #define PACKAGE_TARNAME "stan4bart"
| #define PACKAGE_VERSION "0.0.4"
| #define PACKAGE_STRING "stan4bart 0.0.4"
| #define PACKAGE_BUGREPORT "vdorie@gmail.com"
| #define PACKAGE_URL ""
| /* end confdefs.h.  */
| #include <stdio.h>
| int
| main (void)
| {
| 
|      int op = , level = 0, eax, ebx, ecx, edx;
|      FILE *f;
|       __asm__ __volatile__ ("xchg %%ebx, %1\n"
|         "cpuid\n"
|         "xchg %%ebx, %1\n"
|         : "=a" (eax), "=r" (ebx), "=c" (ecx), "=d" (edx)
|         : "a" (op), "2" (level));
| 
|      f = fopen("conftest_cpuid", "w"); if (!f) return 1;
|      fprintf(f, "%x:%x:%x:%x\n", eax, ebx, ecx, edx);
|      fclose(f);
|      return 0;
| 
|   ;
|   return 0;
| }
configure:5306: result: unknown
configure:5323: checking for x86-AVX xgetbv  output
configure:5355: gcc -std=gnu99 -o conftest -g -O2   conftest.c  >&5
conftest.c: In function 'main':
conftest.c:14: error: expected expression before ',' token
configure:5355: $? = 1
configure: program exited with status 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "stan4bart"
| #define PACKAGE_TARNAME "stan4bart"
| #define PACKAGE_VERSION "0.0.4"
| #define PACKAGE_STRING "stan4bart 0.0.4"
| #define PACKAGE_BUGREPORT "vdorie@gmail.com"
| #define PACKAGE_URL ""
| /* end confdefs.h.  */
| #include <stdio.h>
| int
| main (void)
| {
| 
|      int op = , eax, edx;
|      FILE *f;
|       /* Opcodes for xgetbv */
|       __asm__ __volatile__ (".byte 0x0f, 0x01, 0xd0"
|         : "=a" (eax), "=d" (edx)
|         : "c" (op));
|      f = fopen("conftest_xgetbv", "w"); if (!f) return 1;
|      fprintf(f, "%x:%x\n", eax, edx);
|      fclose(f);
|      return 0;
| 
|   ;
|   return 0;
| }
configure:5366: result: unknown
configure:5397: checking for x86 cpuid 0x00000000 output
configure:5431: gcc -std=gnu99 -o conftest -g -O2   conftest.c  >&5
configure:5431: $? = 0
configure:5431: ./conftest
configure:5431: $? = 0
configure:5442: result: d:756e6547:6c65746e:49656e69
configure:5467: checking for x86 cpuid 0x00000001 output
configure:5501: gcc -std=gnu99 -o conftest -g -O2   conftest.c  >&5
configure:5501: $? = 0
configure:5501: ./conftest
configure:5501: $? = 0
configure:5512: result: 106a5:1060800:ffba220b:1f8bfbff
configure:5574: gcc -std=gnu99 -o conftest -g -O2   conftest.c  >&5
configure:5574: $? = 0
configure:5574: ./conftest
configure:5574: $? = 0
configure:5606: checking whether SSE2 is supported by the processor
configure:5620: result: yes
configure:5624: checking whether SSE2 is supported by the processor and OS
configure:5638: result: yes
configure:5643: checking whether C++ compiler accepts -msse2
configure:5663: g++ -c -g -O2  -msse2  conftest.cpp >&5
configure:5663: $? = 0
configure:5673: result: yes
configure:5730: checking for stdio.h
configure:5730: g++ -c -g -O2  conftest.cpp >&5
configure:5730: $? = 0
configure:5730: result: yes
configure:5730: checking for stdlib.h
configure:5730: g++ -c -g -O2  conftest.cpp >&5
configure:5730: $? = 0
configure:5730: result: yes
configure:5730: checking for string.h
configure:5730: g++ -c -g -O2  conftest.cpp >&5
configure:5730: $? = 0
configure:5730: result: yes
configure:5730: checking for inttypes.h
configure:5730: g++ -c -g -O2  conftest.cpp >&5
configure:5730: $? = 0
configure:5730: result: yes
configure:5730: checking for stdint.h
configure:5730: g++ -c -g -O2  conftest.cpp >&5
configure:5730: $? = 0
configure:5730: result: yes
configure:5730: checking for strings.h
configure:5730: g++ -c -g -O2  conftest.cpp >&5
configure:5730: $? = 0
configure:5730: result: yes
configure:5730: checking for sys/stat.h
configure:5730: g++ -c -g -O2  conftest.cpp >&5
configure:5730: $? = 0
configure:5730: result: yes
configure:5730: checking for sys/types.h
configure:5730: g++ -c -g -O2  conftest.cpp >&5
configure:5730: $? = 0
configure:5730: result: yes
configure:5730: checking for unistd.h
configure:5730: g++ -c -g -O2  conftest.cpp >&5
configure:5730: $? = 0
configure:5730: result: yes
configure:5755: checking for malloc.h
configure:5755: g++ -c -g -O2  conftest.cpp >&5
conftest.cpp:48:20: error: malloc.h: No such file or directory
configure:5755: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "stan4bart"
| #define PACKAGE_TARNAME "stan4bart"
| #define PACKAGE_VERSION "0.0.4"
| #define PACKAGE_STRING "stan4bart 0.0.4"
| #define PACKAGE_BUGREPORT "vdorie@gmail.com"
| #define PACKAGE_URL ""
| #define HAVE_SSE2 1
| #define HAVE_STDIO_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_UNISTD_H 1
| #define STDC_HEADERS 1
| /* end confdefs.h.  */
| #include <stddef.h>
| #ifdef HAVE_STDIO_H
| # include <stdio.h>
| #endif
| #ifdef HAVE_STDLIB_H
| # include <stdlib.h>
| #endif
| #ifdef HAVE_STRING_H
| # include <string.h>
| #endif
| #ifdef HAVE_INTTYPES_H
| # include <inttypes.h>
| #endif
| #ifdef HAVE_STDINT_H
| # include <stdint.h>
| #endif
| #ifdef HAVE_STRINGS_H
| # include <strings.h>
| #endif
| #ifdef HAVE_SYS_TYPES_H
| # include <sys/types.h>
| #endif
| #ifdef HAVE_SYS_STAT_H
| # include <sys/stat.h>
| #endif
| #ifdef HAVE_UNISTD_H
| # include <unistd.h>
| #endif
| #include <malloc.h>
configure:5755: result: no
configure:5767: checking size of size_t
configure:5773: g++ -o conftest -g -O2   conftest.cpp  >&5
configure:5773: $? = 0
configure:5773: ./conftest
configure:5773: $? = 0
configure:5788: result: 8
configure:5798: checking alignment of void*
configure:5804: g++ -o conftest -g -O2   conftest.cpp  >&5
configure:5804: $? = 0
configure:5804: ./conftest
configure:5804: $? = 0
configure:5820: result: 8
configure:5829: checking for size_t
configure:5829: g++ -c -g -O2  conftest.cpp >&5
configure:5829: $? = 0
configure:5829: g++ -c -g -O2  conftest.cpp >&5
conftest.cpp: In function 'int main()':
conftest.cpp:53: error: expected primary-expression before ')' token
configure:5829: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "stan4bart"
| #define PACKAGE_TARNAME "stan4bart"
| #define PACKAGE_VERSION "0.0.4"
| #define PACKAGE_STRING "stan4bart 0.0.4"
| #define PACKAGE_BUGREPORT "vdorie@gmail.com"
| #define PACKAGE_URL ""
| #define HAVE_SSE2 1
| #define HAVE_STDIO_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_UNISTD_H 1
| #define STDC_HEADERS 1
| #define SIZEOF_SIZE_T 8
| #define ALIGNOF_VOIDP 8
| /* end confdefs.h.  */
| #include <stddef.h>
| #ifdef HAVE_STDIO_H
| # include <stdio.h>
| #endif
| #ifdef HAVE_STDLIB_H
| # include <stdlib.h>
| #endif
| #ifdef HAVE_STRING_H
| # include <string.h>
| #endif
| #ifdef HAVE_INTTYPES_H
| # include <inttypes.h>
| #endif
| #ifdef HAVE_STDINT_H
| # include <stdint.h>
| #endif
| #ifdef HAVE_STRINGS_H
| # include <strings.h>
| #endif
| #ifdef HAVE_SYS_TYPES_H
| # include <sys/types.h>
| #endif
| #ifdef HAVE_SYS_STAT_H
| # include <sys/stat.h>
| #endif
| #ifdef HAVE_UNISTD_H
| # include <unistd.h>
| #endif
| int
| main (void)
| {
| if (sizeof ((size_t)))
| 	    return 0;
|   ;
|   return 0;
| }
configure:5829: result: yes
configure:5841: checking for working alloca.h
configure:5859: g++ -o conftest -g -O2   conftest.cpp  >&5
configure:5859: $? = 0
configure:5868: result: yes
configure:5876: checking for alloca
configure:5921: result: yes
configure:5988: checking for working posix_memalign
configure:6014: g++ -o conftest -g -O2   conftest.cpp  >&5
configure:6014: $? = 0
configure:6014: ./conftest
configure:6014: $? = 0
configure:6025: result: yes
configure:6033: checking for ffs
configure:6033: g++ -o conftest -g -O2   conftest.cpp  >&5
configure:6033: $? = 0
configure:6033: result: yes
configure:6157: creating ./config.status

## ---------------------- ##
## Running config.status. ##
## ---------------------- ##

This file was extended by stan4bart config.status 0.0.4, which was
generated by GNU Autoconf 2.71.  Invocation command line was

  CONFIG_FILES    = 
  CONFIG_HEADERS  = 
  CONFIG_LINKS    = 
  CONFIG_COMMANDS = 
  $ ./config.status 

on macmini.private

config.status:812: creating src/Makevars
config.status:812: creating src/config.h

## ---------------- ##
## Cache variables. ##
## ---------------- ##

ac_cv_alignof_voidp=8
ac_cv_build=x86_64-apple-darwin10.8.0
ac_cv_c_compiler_gnu=yes
ac_cv_cxx_compiler_gnu=yes
ac_cv_env_CCC_set=
ac_cv_env_CCC_value=
ac_cv_env_CC_set=
ac_cv_env_CC_value=
ac_cv_env_CFLAGS_set=
ac_cv_env_CFLAGS_value=
ac_cv_env_CPPFLAGS_set=
ac_cv_env_CPPFLAGS_value=
ac_cv_env_CXXCPP_set=
ac_cv_env_CXXCPP_value=
ac_cv_env_CXXFLAGS_set=
ac_cv_env_CXXFLAGS_value=
ac_cv_env_CXX_set=
ac_cv_env_CXX_value=
ac_cv_env_LDFLAGS_set=
ac_cv_env_LDFLAGS_value=
ac_cv_env_LIBS_set=
ac_cv_env_LIBS_value=
ac_cv_env_build_alias_set=
ac_cv_env_build_alias_value=
ac_cv_env_host_alias_set=
ac_cv_env_host_alias_value=
ac_cv_env_target_alias_set=
ac_cv_env_target_alias_value=
ac_cv_func_alloca_works=yes
ac_cv_func_ffs=yes
ac_cv_header_inttypes_h=yes
ac_cv_header_malloc_h=no
ac_cv_header_stdint_h=yes
ac_cv_header_stdio_h=yes
ac_cv_header_stdlib_h=yes
ac_cv_header_string_h=yes
ac_cv_header_strings_h=yes
ac_cv_header_sys_stat_h=yes
ac_cv_header_sys_types_h=yes
ac_cv_header_unistd_h=yes
ac_cv_host=x86_64-apple-darwin10.8.0
ac_cv_objext=o
ac_cv_prog_CXXCPP='g++ -E'
ac_cv_prog_ac_ct_CC=gcc
ac_cv_prog_ac_ct_CXX=g++
ac_cv_prog_cc_c11=no
ac_cv_prog_cc_c99=-std=gnu99
ac_cv_prog_cc_g=yes
ac_cv_prog_cc_stdc=-std=gnu99
ac_cv_prog_cxx_11=no
ac_cv_prog_cxx_g=yes
ac_cv_prog_cxx_stdcxx=
ac_cv_sizeof_size_t=8
ac_cv_type_size_t=yes
ac_cv_working_alloca_h=yes
ax_cv_check_cxxflags___msse2=yes
ax_cv_func_posix_memalign_works=yes
ax_cv_gcc_x86_avx_xgetbv_=unknown
ax_cv_gcc_x86_cpuid_0x00000000=d:756e6547:6c65746e:49656e69
ax_cv_gcc_x86_cpuid_0x00000001=106a5:1060800:ffba220b:1f8bfbff
ax_cv_gcc_x86_cpuid_=unknown
ax_cv_have_mmx_os_support_ext=yes
ax_cv_have_none_os_support_ext=yes
ax_cv_have_sse2_cpu_ext=yes
ax_cv_have_sse2_ext=yes
ax_cv_have_sse_os_support_ext=yes
ax_cv_support_sse2_ext=yes

## ----------------- ##
## Output variables. ##
## ----------------- ##

ALLOCA=''
CC='gcc -std=gnu99'
CFLAGS='-g -O2'
CPPFLAGS=''
CXX='g++'
CXXCPP='g++ -E'
CXXFLAGS='-g -O2'
DEFS='-DHAVE_CONFIG_H'
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EXEEXT=''
LDFLAGS=''
LIBOBJS=''
LIBS=''
LTLIBOBJS=''
OBJEXT='o'
PACKAGE_BUGREPORT='vdorie@gmail.com'
PACKAGE_NAME='stan4bart'
PACKAGE_STRING='stan4bart 0.0.4'
PACKAGE_TARNAME='stan4bart'
PACKAGE_URL=''
PACKAGE_VERSION='0.0.4'
PATH_SEPARATOR=':'
PKG_CXXFLAGS='-I'\''/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/RcppParallel/include'\'' -D_REENTRANT -DSTAN_THREADS  '
PKG_LIBS=' -L/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/RcppParallel/lib/ -Wl,-rpath,'\''/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/RcppParallel/lib/'\'' -ltbb -ltbbmalloc'
SHELL='/bin/sh'
TBB_LIB='/opt/local/Library/Frameworks/R.framework/Versions/4.2/Resources/library/RcppParallel/lib/'
ac_ct_CC='gcc'
ac_ct_CXX='g++'
bindir='${exec_prefix}/bin'
build='x86_64-apple-darwin10.8.0'
build_alias=''
build_cpu='x86_64'
build_os='darwin10.8.0'
build_vendor='apple'
datadir='${datarootdir}'
datarootdir='${prefix}/share'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
dvidir='${docdir}'
exec_prefix='${prefix}'
host='x86_64-apple-darwin10.8.0'
host_alias=''
host_cpu='x86_64'
host_os='darwin10.8.0'
host_vendor='apple'
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
localedir='${datarootdir}/locale'
localstatedir='${prefix}/var'
mandir='${datarootdir}/man'
oldincludedir='/usr/include'
pdfdir='${docdir}'
prefix='/usr/local'
program_transform_name='s,x,x,'
psdir='${docdir}'
runstatedir='${localstatedir}/run'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
sysconfdir='${prefix}/etc'
target_alias=''

## ----------- ##
## confdefs.h. ##
## ----------- ##

/* confdefs.h */
#define PACKAGE_NAME "stan4bart"
#define PACKAGE_TARNAME "stan4bart"
#define PACKAGE_VERSION "0.0.4"
#define PACKAGE_STRING "stan4bart 0.0.4"
#define PACKAGE_BUGREPORT "vdorie@gmail.com"
#define PACKAGE_URL ""
#define HAVE_SSE2 1
#define HAVE_STDIO_H 1
#define HAVE_STDLIB_H 1
#define HAVE_STRING_H 1
#define HAVE_INTTYPES_H 1
#define HAVE_STDINT_H 1
#define HAVE_STRINGS_H 1
#define HAVE_SYS_STAT_H 1
#define HAVE_SYS_TYPES_H 1
#define HAVE_UNISTD_H 1
#define STDC_HEADERS 1
#define SIZEOF_SIZE_T 8
#define ALIGNOF_VOIDP 8
#define HAVE_ALLOCA_H 1
#define HAVE_ALLOCA 1
#define HAVE_POSIX_MEMALIGN 1
#define HAVE_FFS 1

configure: exit 0

[barracuda156]

UPD. Okay, it seems all troubles stem from picking a wrong compiler, which sets wrong triple, SSE2 gets misdetected as being supported, that sets wrong pointer size and pulls in wrong intrinsics headers, and since R uses gcc-12, it triggers unsupported ppc64le insns that require VSX, which is unavailable, so we get a lot of errors.

[barracuda156]

Explicitly forcing the right compiler fixes everything:

checking whether the C++ compiler works... yes
checking for C++ compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C++... yes
checking whether /opt/local/bin/g++-mp-12 accepts -g... yes
checking for /opt/local/bin/g++-mp-12 option to enable C++11 features... none needed
checking how to run the C++ preprocessor... /opt/local/bin/g++-mp-12 -E
checking whether the compiler supports GNU C++... (cached) yes
checking whether /opt/local/bin/g++-mp-12 accepts -g... (cached) yes
checking for /opt/local/bin/g++-mp-12 option to enable C++11 features... (cached) none needed
checking build system type... x86_64-apple-darwin10.8.0
checking host system type... x86_64-apple-darwin10.8.0
checking for gcc... /opt/local/bin/gcc-mp-12
checking whether the compiler supports GNU C... yes
checking whether /opt/local/bin/gcc-mp-12 accepts -g... yes
checking for /opt/local/bin/gcc-mp-12 option to enable C11 features... none needed
checking for x86 cpuid  output... unknown
checking for x86-AVX xgetbv  output... unknown
checking for x86 cpuid 0x00000000 output... unknown
checking whether SSE2 is supported by the processor... no

Perhaps x86 cpuid should be used conditionally?