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-fPIC only for non-MINGW. See http://mingw.5.n7.nabble.com/Option-fPIC-not-supported-td18480.html

This commit is contained in:
Dick Hollenbeck 2013-02-14 09:31:56 -06:00
parent fdc8a1345d
commit 49bca46a5c
1 changed files with 10 additions and 7 deletions
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17
CMakeLists.txt
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@ -85,12 +85,6 @@ endif()
if(CMAKE_COMPILER_IS_GNUCXX)
# We build DLL/DSOs from static libraries, so create position independent code
# for all cases, since we do not have DLL/DSO specific static libraries.
# This flag could be localized to any object file going into a DLL/DSO in the future.
set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC" )
set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC" )
set(KICAD_GCC_RELEASE_BUILD_FLAGS "-O2")
set(KICAD_GCC_RELEASE_DEBUG_FLAGS "")
@ -124,7 +118,10 @@ if(CMAKE_COMPILER_IS_GNUCXX)
"Setting GCC version ${GCC_VERSION} build flags \"${KICAD_GCC_RELEASE_BUILD_FLAGS}\"")
endif()
if(MINGW) # under Windows/mingw, -fPIC option is enabled by default
if(MINGW)
# According to some sources, under Windows -fPIC option is not needed:
# http://mingw.5.n7.nabble.com/Option-fPIC-not-supported-td18480.html
# Set default flags for Release build.
set(CMAKE_C_FLAGS_RELEASE "-Wall ${KICAD_GCC_RELEASE_BUILD_FLAGS} -DNDEBUG")
set(CMAKE_CXX_FLAGS_RELEASE "-Wall ${KICAD_GCC_RELEASE_BUILD_FLAGS} -DNDEBUG")
@ -136,6 +133,12 @@ if(CMAKE_COMPILER_IS_GNUCXX)
set(CMAKE_MODULE_LINKER_FLAGS "-static-libgcc -static-libstdc++") # SWIG macros on Windows
else()
# We build DLL/DSOs from static libraries, so create position independent code
# for all cases, since we do not have DLL/DSO specific static libraries.
# This flag could be localized to any object file going into a DLL/DSO in the future.
set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC" )
set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC" )
# Thou shalt not link vaporware and tell us it's a valid DSO:
set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--no-undefined")
set(CMAKE_MODULE_LINKER_FLAGS "-Wl,--no-undefined") # needed by SWIG macros on linux