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153 lines
4.2 KiB
153 lines
4.2 KiB
2 years ago
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# Helper modules.
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include(CheckFunctionExists)
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include(CheckIncludeFile)
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# Setup options.
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option(GDB "enable use of GDB" OFF)
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option(ASSERT "turn asserts on" OFF)
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option(ASSERT2 "additional assertions" OFF)
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option(DEBUG "add debugging support" OFF)
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option(GPROF "add gprof support" OFF)
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option(VALGRIND "add valgrind support" OFF)
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option(OPENMP "enable OpenMP support" OFF)
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option(PCRE "enable PCRE support" OFF)
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option(GKREGEX "enable GKREGEX support" OFF)
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option(GKRAND "enable GKRAND support" OFF)
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option(NO_X86 "enable NO_X86 support" OFF)
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# Add compiler flags.
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if(MSVC)
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set(GKlib_COPTS "/Ox")
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set(GKlib_COPTIONS "-DWIN32 -DMSC -D_CRT_SECURE_NO_DEPRECATE -DUSE_GKREGEX")
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elseif(MINGW)
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set(GKlib_COPTS "-DUSE_GKREGEX")
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else()
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set(GKlib_COPTIONS "-DLINUX -D_FILE_OFFSET_BITS=64")
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endif(MSVC)
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if(CYGWIN)
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -DCYGWIN")
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endif(CYGWIN)
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if(CMAKE_COMPILER_IS_GNUCC)
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# GCC opts.
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -std=c99 -fno-strict-aliasing")
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if(VALGRIND)
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set(GKlib_COPTIONS "${GK_COPTIONS} -march=x86-64 -mtune=generic")
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else()
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# -march=native is not a valid flag on PPC:
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "power|ppc|powerpc|ppc64|powerpc64" OR (APPLE AND CMAKE_OSX_ARCHITECTURES MATCHES "ppc|ppc64"))
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -mtune=native")
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else()
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -march=native")
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endif()
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endif(VALGRIND)
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if(NOT MINGW)
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -fPIC")
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endif(NOT MINGW)
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# GCC warnings.
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -Werror -Wall -pedantic -Wno-unused-function -Wno-unused-but-set-variable -Wno-unused-variable -Wno-unknown-pragmas -Wno-unused-label")
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elseif(${CMAKE_C_COMPILER_ID} MATCHES "Sun")
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# Sun insists on -xc99.
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -xc99")
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endif(CMAKE_COMPILER_IS_GNUCC)
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# Intel compiler
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if(${CMAKE_C_COMPILER_ID} MATCHES "Intel")
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -xHost -std=c99")
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endif()
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# Find OpenMP if it is requested.
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if(OPENMP)
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include(FindOpenMP)
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if(OPENMP_FOUND)
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -D__OPENMP__ ${OpenMP_C_FLAGS}")
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else()
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message(WARNING "OpenMP was requested but support was not found")
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endif(OPENMP_FOUND)
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endif(OPENMP)
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# Set the CPU type
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if(NO_X86)
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -DNO_X86=${NO_X86}")
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endif(NO_X86)
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# Add various definitions.
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if(GDB)
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set(GKlib_COPTS "${GKlib_COPTS} -g")
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -Werror")
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else()
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set(GKlib_COPTS "-O3")
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endif(GDB)
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if(DEBUG)
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set(GKlib_COPTS "-g")
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -DDEBUG")
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endif(DEBUG)
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if(GPROF)
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set(GKlib_COPTS "-pg")
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endif(GPROF)
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if(NOT ASSERT)
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -DNDEBUG")
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endif(NOT ASSERT)
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if(NOT ASSERT2)
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -DNDEBUG2")
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endif(NOT ASSERT2)
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# Add various options
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if(PCRE)
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -D__WITHPCRE__")
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endif(PCRE)
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if(GKREGEX)
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -DUSE_GKREGEX")
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endif(GKREGEX)
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if(GKRAND)
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -DUSE_GKRAND")
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endif(GKRAND)
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# Check for features.
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check_include_file(execinfo.h HAVE_EXECINFO_H)
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if(HAVE_EXECINFO_H)
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -DHAVE_EXECINFO_H")
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endif(HAVE_EXECINFO_H)
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check_function_exists(getline HAVE_GETLINE)
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if(HAVE_GETLINE)
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -DHAVE_GETLINE")
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endif(HAVE_GETLINE)
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# Custom check for TLS.
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if(MSVC)
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -D__thread=__declspec(thread)")
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# This if checks if that value is cached or not.
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if("${HAVE_THREADLOCALSTORAGE}" MATCHES "^${HAVE_THREADLOCALSTORAGE}$")
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try_compile(HAVE_THREADLOCALSTORAGE
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${CMAKE_BINARY_DIR}
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${GKLIB_PATH}/conf/check_thread_storage.c)
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if(HAVE_THREADLOCALSTORAGE)
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message(STATUS "checking for thread-local storage - found")
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else()
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message(STATUS "checking for thread-local storage - not found")
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endif()
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endif()
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if(NOT HAVE_THREADLOCALSTORAGE)
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set(GKlib_COPTIONS "${GKlib_COPTIONS} -D__thread=")
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endif()
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endif()
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# Finally set the official C flags.
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${GKlib_COPTIONS} ${GKlib_COPTS}")
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# Find GKlib sources.
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file(GLOB GKlib_sources ${GKLIB_PATH}/*.c)
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file(GLOB GKlib_includes ${GKLIB_PATH}/*.h)
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