fix: Pass brew omp location via LDFLAGS and CPPFLAGS (#126)

Author: phated

cpp/bootstrap.sh

@@ -45,6 +45,9 @@ if [ "$OS" == "macos" ]; then
   else
     TOOLCHAIN=x86_64-apple-clang
   fi
+
+  export LDFLAGS="-L$BREW_PREFIX/opt/libomp/lib"
+  export CPPFLAGS="-I$BREW_PREFIX/opt/libomp/include"
 else
   if [ "$ARCH" = "aarch64" ]; then
       TOOLCHAIN=aarch64-linux-clang

cpp/cmake/threading.cmake

@@ -1,20 +1,3 @@
-if(APPLE)
-    if(CMAKE_C_COMPILER_ID MATCHES "Clang")
-        set(OpenMP_C_FLAGS "-fopenmp")
-        set(OpenMP_C_FLAGS_WORK "-fopenmp")
-        set(OpenMP_C_LIB_NAMES "libomp")
-        set(OpenMP_C_LIB_NAMES_WORK "libomp")
-        set(OpenMP_libomp_LIBRARY "$ENV{BREW_PREFIX}/opt/libomp/lib/libomp.dylib")
-    endif()
-    if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-        set(OpenMP_CXX_FLAGS "-fopenmp")
-        set(OpenMP_CXX_FLAGS_WORK "-fopenmp")
-        set(OpenMP_CXX_LIB_NAMES "libomp")
-        set(OpenMP_CXX_LIB_NAMES_WORK "libomp")
-        set(OpenMP_libomp_LIBRARY "$ENV{BREW_PREFIX}/opt/libomp/lib/libomp.dylib")
-    endif()
-endif()
-
 if(MULTITHREADING)
     find_package(OpenMP REQUIRED)
     message(STATUS "Multithreading is enabled.")