mkc_check_decl (1)

mkc_check_decl <check_type> <what> [includes...]

mkc_check_decl -h

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.

-h

display help message

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.

   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

Aleksey Cheusov <[email protected]>