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MKC_CHECK_DECL(1)                                            MKC_CHECK_DECL(1)


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>

                                March 15, 2009               MKC_CHECK_DECL(1)

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