[fix] toolchain: Abstract compiler capabilities

Fixes various typos from the commit titled
    'toolchain: Abstract compiler capabilities'

Signed-off-by: Peter Mitsis <peter.mitsis@gmail.com>

Author: PeterMitsis

code/globalincs/toolchain/clang.h

@@ -41,13 +41,13 @@
 #	define Assertion(expr, msg, ...)                                      \
 		do {                                                              \
 			if (!(expr)) {                                                \
-				WinAssert(#espr, __FILE__, __LINE__, msg, ##_VA_ARGS__);  \
+				WinAssert(#expr, __FILE__, __LINE__, msg, ##__VA_ARGS__); \
 			}                                                             \
 		} while (0)
 #endif
 
 /* C++11 Standard Detection */
-#if !defined(HAVE_CX11)
+#if !defined(HAVE_CXX11)
 	/*
 	 * Clang does not seem to have a feature check for 'is_trivial'.
 	 * Assume it will be covered by one of the following checks ...

code/globalincs/toolchain/gcc.h

@@ -41,15 +41,15 @@
 #	define Assertion(expr, msg, ...)                                      \
 		do {                                                              \
 			if (!(expr)) {                                                \
-				WinAssert(#espr, __FILE__, __LINE__, msg, ##_VA_ARGS__);  \
+				WinAssert(#expr, __FILE__, __LINE__, msg, ##__VA_ARGS__); \
 			}                                                             \
 		} while (0)
 #endif
 
 /* C++11 Standard Detection */
-#if !defined(HAVE_CX11)
+#if !defined(HAVE_CXX11)
 	/*
-	 * For GCC with autotools, see AX_CXX_comPiLE_STDCXX_11 macro in the
+	 * For GCC with autotools, see AX_CXX_COMPiLE_STDCXX_11 macro in the
 	 * file "configure.ac". This sets HAVE_CXX11 & -std=c++0x or -std=c++11
 	 * as appropriate.
 	 *

code/globalincs/toolchain/mingw.h

@@ -41,13 +41,13 @@
 #	define Assertion(expr, msg, ...)                                      \
 		do {                                                              \
 			if (!(expr)) {                                                \
-				WinAssert(#espr, __FILE__, __LINE__, msg, ##_VA_ARGS__);  \
+				WinAssert(#expr, __FILE__, __LINE__, msg, ##__VA_ARGS__); \
 			}                                                             \
 		} while (0)
 #endif
 
 /* C++11 Standard Detection */
-#if !defined(HAVE_CX11)
+#if !defined(HAVE_CXX11)
 	/* TODO */
 #endif
 

code/globalincs/toolchain/msvc.h

@@ -51,7 +51,7 @@
 #		define Assertion(expr, msg, ...)                                    \
 			do {                                                            \
 				if (!(expr)) {                                              \
-					WinAssert(#expr, __FILE__, __LINE__, msg, _VA_ARGS__);  \
+					WinAssert(#expr, __FILE__, __LINE__, msg, __VA_ARGS__); \
 				}                                                           \
 			} while (0)
 #	else                 /* Older MSVC compilers */
@@ -64,7 +64,7 @@
 #endif
 
 /* C++11 Standard Detection */
-#if !defined(HAVE_CX11)
+#if !defined(HAVE_CXX11)
 	/* Use the Visual Studio version to detect C++11 support */
 #	if _MSC_VER >= 1600
 #		define HAVE_CXX11