| include(CheckCCompilerFlag) |
| include(CheckCSourceCompiles) |
| include(CheckIncludeFile) |
| include(CheckIncludeFiles) |
| include(CheckLibraryExists) |
| include(CheckSymbolExists) |
| include(TestBigEndian) |
| |
| check_include_file("dlfcn.h" HAVE_DLFCN_H) |
| check_include_file("fcntl.h" HAVE_FCNTL_H) |
| check_include_file("inttypes.h" HAVE_INTTYPES_H) |
| check_include_file("memory.h" HAVE_MEMORY_H) |
| check_include_file("stdint.h" HAVE_STDINT_H) |
| check_include_file("stdlib.h" HAVE_STDLIB_H) |
| check_include_file("strings.h" HAVE_STRINGS_H) |
| check_include_file("string.h" HAVE_STRING_H) |
| check_include_file("sys/stat.h" HAVE_SYS_STAT_H) |
| check_include_file("sys/types.h" HAVE_SYS_TYPES_H) |
| check_include_file("unistd.h" HAVE_UNISTD_H) |
| |
| check_symbol_exists("getpagesize" "unistd.h" HAVE_GETPAGESIZE) |
| check_symbol_exists("mmap" "sys/mman.h" HAVE_MMAP) |
| check_symbol_exists("getrandom" "sys/random.h" HAVE_GETRANDOM) |
| |
| if(EXPAT_WITH_LIBBSD) |
| set(CMAKE_REQUIRED_LIBRARIES "${LIB_BSD}") |
| set(_bsd "bsd/") |
| else() |
| set(_bsd "") |
| endif() |
| check_symbol_exists("arc4random_buf" "${_bsd}stdlib.h" HAVE_ARC4RANDOM_BUF) |
| if(NOT HAVE_ARC4RANDOM_BUF) |
| check_symbol_exists("arc4random" "${_bsd}stdlib.h" HAVE_ARC4RANDOM) |
| endif() |
| set(CMAKE_REQUIRED_LIBRARIES) |
| |
| #/* Define to 1 if you have the ANSI C header files. */ |
| check_include_files("stdlib.h;stdarg.h;string.h;float.h" STDC_HEADERS) |
| |
| test_big_endian(WORDS_BIGENDIAN) |
| #/* 1234 = LIL_ENDIAN, 4321 = BIGENDIAN */ |
| if(WORDS_BIGENDIAN) |
| set(BYTEORDER 4321) |
| else(WORDS_BIGENDIAN) |
| set(BYTEORDER 1234) |
| endif(WORDS_BIGENDIAN) |
| |
| if(HAVE_SYS_TYPES_H) |
| check_symbol_exists("off_t" "sys/types.h" OFF_T) |
| check_symbol_exists("size_t" "sys/types.h" SIZE_T) |
| else(HAVE_SYS_TYPES_H) |
| set(OFF_T "long") |
| set(SIZE_T "unsigned") |
| endif(HAVE_SYS_TYPES_H) |
| |
| check_c_source_compiles(" |
| #include <stdlib.h> /* for NULL */ |
| #include <unistd.h> /* for syscall */ |
| #include <sys/syscall.h> /* for SYS_getrandom */ |
| int main() { |
| syscall(SYS_getrandom, NULL, 0, 0); |
| return 0; |
| }" |
| HAVE_SYSCALL_GETRANDOM) |
| |
| check_c_compiler_flag("-fno-strict-aliasing" FLAG_NO_STRICT_ALIASING) |
| check_c_compiler_flag("-fvisibility=hidden" FLAG_VISIBILITY) |
| |
| check_library_exists(m cos "" _EXPAT_LIBM_FOUND) |