MKC_CHECK_HEADER(1)                                        MKC_CHECK_HEADER(1)

NAME
       mkc_check_header - detects presense of header file.

SYNOPSIS
       mkc_check_header [OPTIONS] <headers>

DESCRIPTION
       mkc_check_header detects presense of header file.  As a result it
       prints either 1 (true) or 0 (false) to stdout.  headers may be either a
       single header file or a list of headers separated by comma.  In this
       case all mentioned headers are put into a single .c file and ${CC} is
       run.  By default $CC -c is used for checking.  By default, temporary
       and cache files _mkc_header_lheader_h.{c,err,res} are created under
       MKC_CACHEDIR directory. Here, lheader_h is the last header from comma-
       separated list headers.

OPTIONS
       -h     Display help message.

       -e     Use $CC -E for checking instead of $CC -c.

       -d     Delete cache file.

ENVIRONMENT
       CC     Compiler. By default cc is used.

       CPPFLAGS, CFLAGS
              Options passed to the compiler.

       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_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_header stdint.h
          mkc_check_header getopt.h
          mkc_check_header sys/types.h,sys/stat.h,fts.h

C FILE CONTENT
       #include <header1.h>
        ...
       #include <headerN.h>
       int __fake_variable;

AUTHOR
       Aleksey Cheusov <vle@gmx.net>

                                March 30, 2019             MKC_CHECK_HEADER(1)