ConfigureChecks.cmake

   1 include(CheckIncludeFile)
   2 include(CheckSymbolExists)
   3 include(CheckFunctionExists)
   4 include(CheckLibraryExists)
   5 include(CheckTypeSize)
   6 include(CheckCXXSourceCompiles)
   7 include(CheckStructHasMember)
   8 include(TestBigEndian)
   9
  10 set(PACKAGE ${PROJECT_NAME})
  11 set(VERSION ${PROJECT_VERSION})
  12 set(DATADIR ${DATA_INSTALL_DIR})
  13 set(LIBDIR ${CMAKE_INSTALL_LIBDIR})
  14 set(PLUGINDIR "${PLUGIN_INSTALL_DIR}-${LIBRARY_SOVERSION}")
  15 set(SYSCONFDIR ${SYSCONF_INSTALL_DIR})
  16
  17 set(BINARYDIR ${CMAKE_BINARY_DIR})
  18 set(SOURCEDIR ${CMAKE_SOURCE_DIR})
  19
  20 function(COMPILER_DUMPVERSION _OUTPUT_VERSION)
  21     # Remove whitespaces from the argument.
  22     # This is needed for CC="ccache gcc" cmake ..
  23     string(REPLACE " " "" _C_COMPILER_ARG "${CMAKE_C_COMPILER_ARG1}")
  24
  25     execute_process(
  26         COMMAND
  27             ${CMAKE_C_COMPILER} ${_C_COMPILER_ARG} -dumpversion
  28         OUTPUT_VARIABLE _COMPILER_VERSION
  29     )
  30
  31     string(REGEX REPLACE "([0-9])\\.([0-9])(\\.[0-9])?" "\\1\\2"
  32         _COMPILER_VERSION ${_COMPILER_VERSION})
  33
  34     set(${_OUTPUT_VERSION} ${_COMPILER_VERSION} PARENT_SCOPE)
  35 endfunction()
  36
  37 if(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW)
  38     compiler_dumpversion(GNUCC_VERSION)
  39     if (NOT GNUCC_VERSION EQUAL 34)
  40         check_c_compiler_flag("-fvisibility=hidden" WITH_VISIBILITY_HIDDEN)
  41     endif (NOT GNUCC_VERSION EQUAL 34)
  42 endif(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW)
  43
  44 # DEFINITIONS
  45 if (SOLARIS)
  46     add_definitions(-D__EXTENSIONS__)
  47 endif (SOLARIS)
  48
  49 # HEADER FILES
  50 check_include_file(assert.h HAVE_ASSERT_H)
  51 check_include_file(inttypes.h HAVE_INTTYPES_H)
  52 check_include_file(io.h HAVE_IO_H)
  53 check_include_file(malloc.h HAVE_MALLOC_H)
  54 check_include_file(memory.h HAVE_MEMORY_H)
  55 check_include_file(setjmp.h HAVE_SETJMP_H)
  56 check_include_file(signal.h HAVE_SIGNAL_H)
  57 check_include_file(stdarg.h HAVE_STDARG_H)
  58 check_include_file(stddef.h HAVE_STDDEF_H)
  59 check_include_file(stdint.h HAVE_STDINT_H)
  60 check_include_file(stdio.h HAVE_STDIO_H)
  61 check_include_file(stdlib.h HAVE_STDLIB_H)
  62 check_include_file(string.h HAVE_STRING_H)
  63 check_include_file(strings.h HAVE_STRINGS_H)
  64 check_include_file(sys/stat.h HAVE_SYS_STAT_H)
  65 check_include_file(sys/types.h HAVE_SYS_TYPES_H)
  66 check_include_file(time.h HAVE_TIME_H)
  67 check_include_file(unistd.h HAVE_UNISTD_H)
  68
  69 if (HAVE_TIME_H)
  70     check_struct_has_member("struct timespec" tv_sec "time.h" HAVE_STRUCT_TIMESPEC)
  71 endif (HAVE_TIME_H)
  72
  73 # FUNCTIONS
  74 check_function_exists(calloc HAVE_CALLOC)
  75 check_function_exists(exit HAVE_EXIT)
  76 check_function_exists(fprintf HAVE_FPRINTF)
  77 check_function_exists(free HAVE_FREE)
  78 check_function_exists(longjmp HAVE_LONGJMP)
  79 check_function_exists(siglongjmp HAVE_SIGLONGJMP)
  80 check_function_exists(malloc HAVE_MALLOC)
  81 check_function_exists(memcpy HAVE_MEMCPY)
  82 check_function_exists(memset HAVE_MEMSET)
  83 check_function_exists(printf HAVE_PRINTF)
  84 check_function_exists(setjmp HAVE_SETJMP)
  85 check_function_exists(signal HAVE_SIGNAL)
  86 check_function_exists(strsignal HAVE_STRSIGNAL)
  87 check_function_exists(strcmp HAVE_STRCMP)
  88 check_function_exists(clock_gettime HAVE_CLOCK_GETTIME)
  89
  90 if (WIN32)
  91     check_function_exists(_vsnprintf_s HAVE__VSNPRINTF_S)
  92     check_function_exists(_vsnprintf HAVE__VSNPRINTF)
  93     check_function_exists(_snprintf HAVE__SNPRINTF)
  94     check_function_exists(_snprintf_s HAVE__SNPRINTF_S)
  95     check_symbol_exists(snprintf stdio.h HAVE_SNPRINTF)
  96     check_symbol_exists(vsnprintf stdio.h HAVE_VSNPRINTF)
  97 else (WIN32)
  98     check_function_exists(sprintf HAVE_SNPRINTF)
  99     check_function_exists(vsnprintf HAVE_VSNPRINTF)
 100 endif (WIN32)
 101
 102 find_library(RT_LIBRARY rt)
 103 if (RT_LIBRARY AND NOT LINUX AND NOT ANDROID)
 104     set(CMOCKA_REQUIRED_LIBRARIES ${RT_LIBRARY} CACHE INTERNAL "cmocka required system libraries")
 105 endif ()
 106
 107 # OPTIONS
 108 check_c_source_compiles("
 109 __thread int tls;
 110
 111 int main(void) {
 112     return 0;
 113 }" HAVE_GCC_THREAD_LOCAL_STORAGE)
 114
 115 if (WIN32)
 116 check_c_source_compiles("
 117 __declspec(thread) int tls;
 118
 119 int main(void) {
 120     return 0;
 121 }" HAVE_MSVC_THREAD_LOCAL_STORAGE)
 122 endif(WIN32)
 123
 124 if (HAVE_TIME_H AND HAVE_STRUCT_TIMESPEC AND HAVE_CLOCK_GETTIME)
 125     if (RT_LIBRARY)
 126         set(CMAKE_REQUIRED_LIBRARIES ${RT_LIBRARY})
 127     endif()
 128
 129     check_c_source_compiles("
 130 #include <time.h>
 131
 132 int main(void) {
 133     struct timespec ts;
 134
 135     clock_gettime(CLOCK_REALTIME, &ts);
 136
 137     return 0;
 138 }" HAVE_CLOCK_REALTIME)
 139
 140     # reset cmake requirements
 141     set(CMAKE_REQUIRED_INCLUDES)
 142     set(CMAKE_REQUIRED_LIBRARIES)
 143 endif ()
 144
 145 # ENDIAN
 146 if (NOT WIN32)
 147     set(WORDS_SIZEOF_VOID_P ${CMAKE_SIZEOF_VOID_P})
 148     test_big_endian(WORDS_BIGENDIAN)
 149 endif (NOT WIN32)