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-rw-r--r--cmake/Modules/CompilerRTUtils.cmake8
1 files changed, 8 insertions, 0 deletions
diff --git a/cmake/Modules/CompilerRTUtils.cmake b/cmake/Modules/CompilerRTUtils.cmake
index ae59732928a1..f7f60a4ac6f4 100644
--- a/cmake/Modules/CompilerRTUtils.cmake
+++ b/cmake/Modules/CompilerRTUtils.cmake
@@ -49,3 +49,11 @@ macro(append_no_rtti_flag list)
append_list_if(COMPILER_RT_HAS_FNO_RTTI_FLAG -fno-rtti ${list})
append_list_if(COMPILER_RT_HAS_GR_FLAG /GR- ${list})
endmacro()
+
+macro(append_have_file_definition filename varname list)
+ check_include_file("${filename}" "${varname}")
+ if (NOT ${varname})
+ set("${varname}" 0)
+ endif()
+ list(APPEND ${list} "${varname}=${${varname}}")
+endmacro()