From 2ad475830e042e814bc29a8b600d825adce919f2 Mon Sep 17 00:00:00 2001
From: Walter Huf <hufman@gmail.com>
Date: Thu, 14 Dec 2023 19:09:57 -0800
Subject: [PATCH] cmake: Expand generator exps in libobs pkgconfig

Non-x86 platforms use a generator expression to add the -fopenmp flag
so render this expression before writing out any pkgconfig file

Should fix #7972 and #7990
---
 cmake/Modules/CompilerConfig.cmake   | 5 +++--
 cmake/Modules/ObsHelpers_Linux.cmake | 7 ++++++-
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/cmake/Modules/CompilerConfig.cmake b/cmake/Modules/CompilerConfig.cmake
index 849d19de75ccf2..ee10d62ad72a31 100644
--- a/cmake/Modules/CompilerConfig.cmake
+++ b/cmake/Modules/CompilerConfig.cmake
@@ -163,8 +163,9 @@ else()
     check_c_compiler_flag("-fopenmp-simd" C_COMPILER_SUPPORTS_OPENMP_SIMD)
     check_cxx_compiler_flag("-fopenmp-simd" CXX_COMPILER_SUPPORTS_OPENMP_SIMD)
     set(ARCH_SIMD_FLAGS
-        -DSIMDE_ENABLE_OPENMP "$<$<AND:$<COMPILE_LANGUAGE:C>,$<BOOL:C_COMPILER_SUPPORTS_OPENMP_SIMD>>:-fopenmp-simd>"
-        "$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<BOOL:CXX_COMPILER_SUPPORTS_OPENMP_SIMD>>:-fopenmp-simd>")
+        -DSIMDE_ENABLE_OPENMP
+        "$<$<OR:$<AND:$<COMPILE_LANGUAGE:C>,$<BOOL:C_COMPILER_SUPPORTS_OPENMP_SIMD>>,$<AND:$<COMPILE_LANGUAGE:CXX>,$<BOOL:CXX_COMPILER_SUPPORTS_OPENMP_SIMD>>>:-fopenmp-simd>"
+    )
   endif()
 endif()
 
diff --git a/cmake/Modules/ObsHelpers_Linux.cmake b/cmake/Modules/ObsHelpers_Linux.cmake
index ced6c9ba3ec837..26991e286597a6 100644
--- a/cmake/Modules/ObsHelpers_Linux.cmake
+++ b/cmake/Modules/ObsHelpers_Linux.cmake
@@ -58,7 +58,12 @@ function(export_target_pkgconf target)
     set(_TARGET_OPTIONS "")
   endif()
 
-  configure_file("${CMAKE_CURRENT_SOURCE_DIR}/pkgconfig/${target}.pc.in" "${target}.pc" @ONLY)
+  configure_file("${CMAKE_CURRENT_SOURCE_DIR}/pkgconfig/${target}.pc.in"
+                 "${CMAKE_CURRENT_SOURCE_DIR}/pkgconfig/${target}.pc.in2" @ONLY)
+  file(
+    GENERATE
+    OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${target}.pc"
+    INPUT "${CMAKE_CURRENT_SOURCE_DIR}/pkgconfig/${target}.pc.in2")
 
   install(FILES "${CMAKE_CURRENT_BINARY_DIR}/${target}.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
 endfunction()