Add -isysroot if CMake has a point of view...

McStasMcXtrace · Dec 4, 2023 · c25ad12 · c25ad12
1 parent e3550e0
commit c25ad12
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/cmake/Modules/PlatformDefaults.cmake b/cmake/Modules/PlatformDefaults.cmake
@@ -125,6 +125,10 @@ function( detect_platform_variables resultvarname )
  #C flags:
  include (CheckCCompilerFlag)
  set(MCCODE_CFLAGS "${CMAKE_C_FLAGS_RELWITHDEBINFO}")
+ if ( DARWIN AND DEFINED CMAKE_OSX_SYSROOT AND NOT "x${CMAKE_OSX_SYSROOT}" STREQUAL "x" )
+ #Attempt to provide the relevant -isysroot on macOS, possibly found by cmake
+ set(MCCODE_CFLAGS "${MCCODE_CFLAGS} -isysroot ${CMAKE_OSX_SYSROOT}")
+ endif()
  foreach( flag "-std=c99" "-lm" )
  #NB: plethora of "unset(tmp_test_c_flag_result ...)" statements below is
  #added for safety, to prevent CMake's CACHE system to give unpredictable