| Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 1 | include(CheckCCompilerFlag)
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| 2 | include(CheckCSourceCompiles)
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| 3 | include(CheckIncludeFile)
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| 4 | include(CheckIncludeFiles)
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| 5 | include(CheckFunctionExists)
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| 6 | include(CheckSymbolExists)
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| 7 | include(TestBigEndian)
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| 8 |
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| 9 | check_include_file("dlfcn.h" HAVE_DLFCN_H)
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| 10 | check_include_file("fcntl.h" HAVE_FCNTL_H)
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| 11 | check_include_file("inttypes.h" HAVE_INTTYPES_H)
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| 12 | check_include_file("memory.h" HAVE_MEMORY_H)
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| 13 | check_include_file("stdint.h" HAVE_STDINT_H)
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| 14 | check_include_file("stdlib.h" HAVE_STDLIB_H)
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| 15 | check_include_file("strings.h" HAVE_STRINGS_H)
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| 16 | check_include_file("string.h" HAVE_STRING_H)
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| 17 | check_include_file("sys/stat.h" HAVE_SYS_STAT_H)
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| 18 | check_include_file("sys/types.h" HAVE_SYS_TYPES_H)
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| 19 | check_include_file("unistd.h" HAVE_UNISTD_H)
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| 20 |
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| 21 | check_function_exists("getpagesize" HAVE_GETPAGESIZE)
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| 22 | check_function_exists("bcopy" HAVE_BCOPY)
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| 23 | check_symbol_exists("memmove" "string.h" HAVE_MEMMOVE)
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| 24 | check_function_exists("mmap" HAVE_MMAP)
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| 25 | check_function_exists("getrandom" HAVE_GETRANDOM)
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| 26 |
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| 27 | if(USE_libbsd)
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| 28 | set(CMAKE_REQUIRED_LIBRARIES "${LIB_BSD}")
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| 29 | endif()
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| 30 | check_function_exists("arc4random_buf" HAVE_ARC4RANDOM_BUF)
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| 31 | if(NOT HAVE_ARC4RANDOM_BUF)
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| 32 | check_function_exists("arc4random" HAVE_ARC4RANDOM)
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| 33 | endif()
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| 34 | set(CMAKE_REQUIRED_LIBRARIES)
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| 35 |
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| 36 | #/* Define to 1 if you have the ANSI C header files. */
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| 37 | check_include_files("stdlib.h;stdarg.h;string.h;float.h" STDC_HEADERS)
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| 38 |
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| 39 | test_big_endian(WORDS_BIGENDIAN)
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| 40 | #/* 1234 = LIL_ENDIAN, 4321 = BIGENDIAN */
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| 41 | if(WORDS_BIGENDIAN)
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| 42 | set(BYTEORDER 4321)
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| 43 | else(WORDS_BIGENDIAN)
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| 44 | set(BYTEORDER 1234)
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| 45 | endif(WORDS_BIGENDIAN)
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| 46 |
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| 47 | if(HAVE_SYS_TYPES_H)
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| 48 | check_symbol_exists("off_t" "sys/types.h" OFF_T)
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| 49 | check_symbol_exists("size_t" "sys/types.h" SIZE_T)
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| 50 | else(HAVE_SYS_TYPES_H)
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| 51 | set(OFF_T "long")
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| 52 | set(SIZE_T "unsigned")
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| 53 | endif(HAVE_SYS_TYPES_H)
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| 54 |
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| 55 | check_c_source_compiles("
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| 56 | #include <stdlib.h> /* for NULL */
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| 57 | #include <unistd.h> /* for syscall */
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| 58 | #include <sys/syscall.h> /* for SYS_getrandom */
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| 59 | int main() {
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| 60 | syscall(SYS_getrandom, NULL, 0, 0);
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| 61 | return 0;
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| 62 | }"
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| 63 | HAVE_SYSCALL_GETRANDOM)
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| 64 |
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| 65 | configure_file(expat_config.h.cmake "${CMAKE_CURRENT_BINARY_DIR}/expat_config.h")
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| 66 | add_definitions(-DHAVE_EXPAT_CONFIG_H)
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| 67 |
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| 68 | check_c_compiler_flag("-fno-strict-aliasing" FLAG_NO_STRICT_ALIASING)
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