SYNOPSIS
mkc_check_decl <check_type> <what> [includes...]mkc_check_decl -h
DESCRIPTION
check_type is either define, variable, func[0-9], type, member or prototype. Depending on its value mkc_check_decl checks for define, variable, function with specified number of arguments, type or a member of structure in a specified header files includes by compiling a test program. As a result it prints either 1 (success) or 0 (failure) to stdout.OPTIONS
- -h
- display help message
ENVIRONMENT
- CC
- Compiler. By default cc is used.
- CPPFLAGS, CFLAGS
- Options passed to the compiler, for example -I for additional directories that contain header files.
- MKC_VERBOSE
- If set to 1, verbose messages are output to stderr.
- MKC_SHOW_CACHED
- If set to 1 and MKC_VERBOSE is set to 1, cached results are output to stderr.
- MKC_COMMON_HEADERS
- List of header files to add to .c test program.
- MKC_CACHEDIR
- Directory where temporary and cache files are created. If unset they are created in a current directory.
- MKC_NOCACHE
- All results are cached unless MKC_NOCACHE variable is set to 1.
- MKC_DELETE_TMPFILES
- If set to 1, temporary files are removed.
EXAMPLES
mkc_check_decl define __GNUC__ mkc_check_decl define RTLD_LAZY dlfcn.h mkc_check_decl variable sys_errlist errno.h mkc_check_decl variable __malloc_hook malloc.h mkc_check_decl func3 poll poll.h mkc_check_decl func2 fgetln stdio.h mkc_check_decl type mbstate_t wchar.h mkc_check_decl type long-long mkc_check_decl member tm.tm_isdst time.h mkc_check_decl member ifreq.ifr_addr.sa_len net/if.h mkc_check_decl prototype 'int connect(int __fd, const struct sockaddr * __addr, socklen_t __len)' sys/socket.h mkc_check_decl prototype 'int connect(int __fd, struct sockaddr * __addr, socklen_t __len)' sys/socket.h