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-rw-r--r--Modules/Compiler/GNU.cmake4
1 files changed, 3 insertions, 1 deletions
diff --git a/Modules/Compiler/GNU.cmake b/Modules/Compiler/GNU.cmake
index 6960571..1c050a2 100644
--- a/Modules/Compiler/GNU.cmake
+++ b/Modules/Compiler/GNU.cmake
@@ -111,7 +111,9 @@ macro(__compiler_gnu lang)
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "-dM" "-E" "-c" "${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp")
set(CMAKE_PCH_EXTENSION .gch)
- set(CMAKE_PCH_PROLOGUE "#pragma GCC system_header")
+ if (NOT CMAKE_GENERATOR MATCHES "Xcode")
+ set(CMAKE_PCH_PROLOGUE "#pragma GCC system_header")
+ endif()
set(CMAKE_${lang}_COMPILE_OPTIONS_USE_PCH -Winvalid-pch -include <PCH_HEADER>)
set(CMAKE_${lang}_COMPILE_OPTIONS_CREATE_PCH -Winvalid-pch -x ${__pch_header_${lang}} -include <PCH_HEADER>)
endmacro()