diff options
Diffstat (limited to 'config/CMakeLists.txt')
| -rw-r--r-- | config/CMakeLists.txt | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/config/CMakeLists.txt b/config/CMakeLists.txt index e9a872d9be..9334691e2a 100644 --- a/config/CMakeLists.txt +++ b/config/CMakeLists.txt @@ -2,6 +2,7 @@ include(CheckTypeSize) include(CheckSymbolExists) include(CheckFunctionExists) include(CheckIncludeFiles) +include(CheckCSourceRuns) check_type_size("int" SIZEOF_INT) check_type_size("long" SIZEOF_LONG) @@ -71,6 +72,35 @@ if(HAVE_LANGINFO_H) check_symbol_exists(CODESET "langinfo.h" HAVE_NL_LANGINFO_CODESET) endif() +set(SI "#include <stdint.h>\n") +set(MS "int main(int argc,char**argv)\n{\n uint64_t i=0x0102030405060708ULL;") +set(ME "}") +check_c_source_runs(" + ${SI} + ${MS} + char *s = (char *) &i; + return ( + s[0] == 0x01 + && s[1] == 0x02 + && s[2] == 0x03 + && s[3] == 0x04 + && s[4] == 0x05 + && s[5] == 0x06 + && s[6] == 0x07 + && s[7] == 0x08) ? 0 : 1; + ${ME}" + ORDER_BIG_ENDIAN) +check_c_source_runs(" + #define _BSD_SOURCE 1 + #define _DEFAULT_SOURCE 1 + ${SI} + #include <endian.h> + ${MS} + uint64_t j = be64toh(i); + return (j == 0); // Must not be zero + ${ME}" + HAVE_BE64TOH) + # generate configuration header and update include directories configure_file ( "${PROJECT_SOURCE_DIR}/config/config.h.in" |