31d7a0f2e3
Store in new platform variables
CMAKE_${lang}_COMPILE_OPTIONS_PIC
CMAKE_${lang}_COMPILE_OPTIONS_PIE
flags for position independent code generation.
In almost all cases, this means duplication of the
CMAKE_SHARED_LIBRARY_${lang}_FLAGS for the _PIC case and using the
assumed pie equivalent for the _PIE case. Note that the GNU compiler
has supported -fPIE since 3.4 and that there is no -fPIC on GNU for
Windows or Cygwin.
There is a possibility that the _PIE variables are not correct.
However, as there is no backwards compatibility to be concerned about
(as the POSITION_INDEPENDENT_CODE property is not used anywhere yet),
the current state suffices.
16 lines
746 B
CMake
16 lines
746 B
CMake
IF(EXISTS /usr/include/dlfcn.h)
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SET(CMAKE_DL_LIBS "")
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SET(CMAKE_C_COMPILE_OPTIONS_PIC "-fPIC")
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SET(CMAKE_C_COMPILE_OPTIONS_PIE "-fPIE")
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SET(CMAKE_SHARED_LIBRARY_C_FLAGS "-fPIC") # -pic
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SET(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-shared") # -shared
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SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "") # +s, flag for exe link to use shared lib
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SET(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "-Wl,-rpath,") # -rpath
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SET(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP ":") # : or empty
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SET(CMAKE_SHARED_LIBRARY_RPATH_LINK_C_FLAG "-Wl,-rpath-link,")
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SET(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-Wl,-soname,")
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SET(CMAKE_EXE_EXPORTS_C_FLAG "-Wl,--export-dynamic")
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ENDIF(EXISTS /usr/include/dlfcn.h)
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INCLUDE(Platform/UnixPaths)
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