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 if(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)
  38     compiler_dumpversion(GNUCC_VERSION)
  39     if (NOT GNUCC_VERSION EQUAL 34)
  40         set(CMAKE_REQUIRED_FLAGS "-fvisibility=hidden")
  41         check_c_source_compiles(
  42 "void __attribute__((visibility(\"default\"))) test() {}
  43 int main(void){ return 0; }
  44 " WITH_VISIBILITY_HIDDEN)
  45         set(CMAKE_REQUIRED_FLAGS "")
  46     endif (NOT GNUCC_VERSION EQUAL 34)
  47 endif(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)
  48
  49 # HEADERS
  50 check_include_file(sys/types.h HAVE_SYS_TYPES_H)
  51 check_include_file(sys/syscall.h HAVE_SYS_SYSCALL_H)
  52 check_include_file(syscall.h HAVE_SYSCALL_H)
  53 check_include_file(grp.h HAVE_GRP_H)
  54 check_include_file(unistd.h HAVE_UNISTD_H)
  55
  56 # FUNCTIONS
  57 check_function_exists(strncpy HAVE_STRNCPY)
  58 check_function_exists(vsnprintf HAVE_VSNPRINTF)
  59 check_function_exists(snprintf HAVE_SNPRINTF)
  60
  61 check_function_exists(seteuid HAVE_SETEUID)
  62 check_function_exists(setreuid HAVE_SETREUID)
  63 check_function_exists(setreuid HAVE_SETRESUID)
  64
  65 check_function_exists(setegid HAVE_SETEGID)
  66 check_function_exists(setregid HAVE_SETREGID)
  67 check_function_exists(setregid HAVE_SETRESGID)
  68
  69 check_function_exists(getgroups HAVE_GETGROUPS)
  70 check_function_exists(setgroups HAVE_SETGROUPS)
  71
  72 check_function_exists(syscall HAVE_SYSCALL)
  73
  74 if (HAVE_SYSCALL)
  75     add_definitions(-D_GNU_SOURCE)
  76 endif (HAVE_SYSCALL)
  77
  78 # OPTIONS
  79
  80 if (LINUX)
  81     if (HAVE_SYS_SYSCALL_H)
  82        list(APPEND CMAKE_REQUIRED_DEFINITIONS "-DHAVE_SYS_SYSCALL_H")
  83     endif (HAVE_SYS_SYSCALL_H)
  84     if (HAVE_SYSCALL_H)
  85         list(APPEND CMAKE_REQUIRED_DEFINITIONS "-DHAVE_SYSCALL_H")
  86     endif (HAVE_SYSCALL_H)
  87
  88 check_c_source_compiles("
  89 #include <sys/types.h>
  90 #ifdef HAVE_SYS_SYSCALL_H
  91 #include <sys/syscall.h>
  92 #endif
  93 #ifdef HAVE_SYSCALL_H
  94 #include <syscall.h>
  95 #endif
  96 #include <unistd.h>
  97
  98 int main(void) {
  99     syscall(SYS_setresuid32, -1, -1, -1);
 100     syscall(SYS_setresgid32, -1, -1, -1);
 101     syscall(SYS_setreuid32, -1, -1);
 102     syscall(SYS_setregid32, -1, -1);
 103     syscall(SYS_setuid32, -1);
 104     syscall(SYS_setgid32, -1);
 105     syscall(SYS_setgroups32, 0, NULL);
 106
 107     return 0;
 108 }" HAVE_LINUX_32BIT_SYSCALLS)
 109
 110     set(CMAKE_REQUIRED_DEFINITIONS)
 111 endif (LINUX)
 112
 113 check_c_source_compiles("
 114 __thread int tls;
 115
 116 int main(void) {
 117     return 0;
 118 }" HAVE_GCC_THREAD_LOCAL_STORAGE)
 119
 120
 121 # SYSTEM LIBRARIES
 122
 123 check_library_exists(dl dlopen "" HAVE_LIBDL)
 124 if (HAVE_LIBDL)
 125     find_library(DLFCN_LIBRARY dl)
 126     set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${DLFCN_LIBRARY})
 127 endif (HAVE_LIBDL)
 128
 129 # ENDIAN
 130 if (NOT WIN32)
 131     test_big_endian(WORDS_BIGENDIAN)
 132 endif (NOT WIN32)
 133
 134 set(UIDWRAP_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CACHE INTERNAL "uidwrap required system libraries")