ConfigureChecks.cmake

   1 include(CheckIncludeFile)
   2 include(CheckSymbolExists)
   3 include(CheckFunctionExists)
   4 include(CheckLibraryExists)
   5 include(CheckTypeSize)
   6 include(CheckStructHasMember)
   7 include(CheckPrototypeDefinition)
   8 include(TestBigEndian)
   9
  10 set(PACKAGE ${APPLICATION_NAME})
  11 set(VERSION ${APPLICATION_VERSION})
  12 set(DATADIR ${DATA_INSTALL_DIR})
  13 set(LIBDIR ${LIB_INSTALL_DIR})
  14 set(PLUGINDIR "${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 # HEADERS
  38 check_include_file(sys/types.h HAVE_SYS_TYPES_H)
  39 check_include_file(unistd.h HAVE_UNISTD_H)
  40 check_include_file(security/pam_appl.h HAVE_SECURITY_PAM_APPL_H)
  41
  42 # FUNCTIONS
  43 check_function_exists(strncpy HAVE_STRNCPY)
  44 check_function_exists(vsnprintf HAVE_VSNPRINTF)
  45 check_function_exists(snprintf HAVE_SNPRINTF)
  46
  47 # FUNCTIONS
  48 find_library(PAM_LIBRARY NAMES libpam.so.0 pam)
  49 set(PAM_LIBRARY ${PAM_LIBRARY})
  50
  51 # OPTIONS
  52
  53 if (LINUX)
  54     if (HAVE_SYS_SYSCALL_H)
  55        list(APPEND CMAKE_REQUIRED_DEFINITIONS "-DHAVE_SYS_SYSCALL_H")
  56     endif (HAVE_SYS_SYSCALL_H)
  57     if (HAVE_SYSCALL_H)
  58         list(APPEND CMAKE_REQUIRED_DEFINITIONS "-DHAVE_SYSCALL_H")
  59     endif (HAVE_SYSCALL_H)
  60
  61     set(CMAKE_REQUIRED_DEFINITIONS)
  62 endif (LINUX)
  63
  64 check_c_source_compiles("
  65 #include <stdbool.h>
  66 int main(void) {
  67     bool x;
  68     bool *p_x = &x;
  69     __atomic_load(p_x, &x, __ATOMIC_RELAXED);
  70     return 0;
  71 }" HAVE_GCC_ATOMIC_BUILTINS)
  72
  73 check_c_source_compiles("
  74 __thread int tls;
  75
  76 int main(void) {
  77     return 0;
  78 }" HAVE_GCC_THREAD_LOCAL_STORAGE)
  79
  80 check_c_source_compiles("
  81 void test_constructor_attribute(void) __attribute__ ((constructor));
  82
  83 void test_constructor_attribute(void)
  84 {
  85      return;
  86 }
  87
  88 int main(void) {
  89      return 0;
  90 }" HAVE_CONSTRUCTOR_ATTRIBUTE)
  91
  92 check_c_source_compiles("
  93 void test_destructor_attribute(void) __attribute__ ((destructor));
  94
  95 void test_destructor_attribute(void)
  96 {
  97     return;
  98 }
  99
 100 int main(void) {
 101     return 0;
 102 }" HAVE_DESTRUCTOR_ATTRIBUTE)
 103
 104 check_c_source_compiles("
 105 void log_fn(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
 106
 107 int main(void) {
 108     return 0;
 109 }" HAVE_FUNCTION_ATTRIBUTE_FORMAT)
 110
 111 # SYSTEM LIBRARIES
 112
 113 check_library_exists(dl dlopen "" HAVE_LIBDL)
 114 if (HAVE_LIBDL)
 115     find_library(DLFCN_LIBRARY dl)
 116     set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${DLFCN_LIBRARY})
 117 endif (HAVE_LIBDL)
 118
 119 if (OSX)
 120     set(HAVE_APPLE 1)
 121 endif (OSX)
 122
 123 # ENDIAN
 124 if (NOT WIN32)
 125     test_big_endian(WORDS_BIGENDIAN)
 126 endif (NOT WIN32)
 127
 128 set(UIDWRAP_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CACHE INTERNAL "uidwrap required system libraries")