mkc_check_decl - Online in the Cloud

PROGRAM:

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

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