NAME¶
mkc_check_decl - checks for define, function, variable, type or function
prototype.
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
AUTHOR¶
Aleksey Cheusov <vle@gmx.net>