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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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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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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28 set(CMAKE_REQUIRED_LIBRARIES "${LIB_BSD}")
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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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34 set(CMAKE_REQUIRED_LIBRARIES)
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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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39 test_big_endian(WORDS_BIGENDIAN)
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40 #/* 1234 = LIL_ENDIAN, 4321 = BIGENDIAN */
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43 else(WORDS_BIGENDIAN)
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45 endif(WORDS_BIGENDIAN)
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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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52 set(SIZE_T "unsigned")
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53 endif(HAVE_SYS_TYPES_H)
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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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60 syscall(SYS_getrandom, NULL, 0, 0);
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63 HAVE_SYSCALL_GETRANDOM)
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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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68 check_c_compiler_flag("-fno-strict-aliasing" FLAG_NO_STRICT_ALIASING)
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