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CMake: don't overwrite the user's CFLAGS

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If either CFLAGS is defined or the user passes -DCMAKE_C_FLAGS to
cmake, the variable already contains flags. Don't overwrite them, but
append them to our settings.

Signed-off-by: Carlos Martín Nieto <carlos@cmartin.tk>
This commit is contained in:
Carlos Martín Nieto 2011-10-11 18:08:54 +02:00
parent dcd62cb2e9
commit 5b216d1a6f
1 changed files with 2 additions and 2 deletions
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4
CMakeLists.txt
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@ -57,7 +57,7 @@ ENDIF ()
# Platform specific compilation flags
IF (MSVC)
SET(CMAKE_C_FLAGS "/W4 /nologo /Zi")
SET(CMAKE_C_FLAGS "/W4 /nologo /Zi ${CMAKE_C_FLAGS}")
IF (STDCALL)
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /Gz")
ENDIF ()
@ -65,7 +65,7 @@ IF (MSVC)
SET(CMAKE_C_FLAGS_DEBUG "/Od /DEBUG /MTd")
SET(CMAKE_C_FLAGS_RELEASE "/MT /O2")
ELSE ()
SET(CMAKE_C_FLAGS "-O2 -g -Wall -Wextra -Wstrict-aliasing=2 -Wstrict-prototypes -Wmissing-prototypes")
SET(CMAKE_C_FLAGS "-O2 -g -Wall -Wextra -Wstrict-aliasing=2 -Wstrict-prototypes -Wmissing-prototypes ${CMAKE_C_FLAGS}")
IF (NOT MINGW) # MinGW always does PIC and complains if we tell it to
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
ENDIF ()