dnl @synopsis AC_CREATE_GENERIC_CONFIG [(PACKAGEnlibs [, VERSION])]
dnl
dnl Creates a generic PACKAGE-config file that has all the things that
dnl you want, hmm, well, atleast it has --cflags, --version, --libs.
dnl Ahhm, did you see ac_path_generic in the autoconf-archive? ;-)
dnl
dnl this macros saves you all the typing for a pkg-config.in script,
dnl you don't even need to distribute one along. Place this macro in
dnl your configure.ac, et voila, you got one that you want to install.
dnl
dnl oh, btw, if the first arg looks like "mylib -lwhat' then it will go
dnl to be added to the --libs, and mylib is extracted.
dnl
dnl the defaults: $1 = $PACKAGE $LIBS $2 = $VERSION there is also an
dnl AC_SUBST(GENERIC_CONFIG) that will be set to the name of the file
dnl that we did output in this macro. Use as:
dnl
dnl  install-exec-local:    install-generic-config
dnl
dnl  install-generic-config:
dnl     $(mkinstalldirs) $(DESTDIR)$(bindir)
dnl     $(INSTALL_SCRIPT) @GENERIC_CONFIG@ $(DESTDIR)$(bindir)
dnl
dnl @category Misc
dnl @author Guido U. Draheim <guidod@gmx.de>
dnl @version 2006-10-13
dnl @license GPLWithACException

AC_DEFUN([AC_CREATE_GENERIC_CONFIG],[# create a generic PACKAGE-config file
L=`echo ifelse($1, , $PACKAGE $LIBS, $1)`
P=`echo $L | sed -e 's/ -.*//'`
P=`echo $P`
V=`echo ifelse($2, , $VERSION, $2)`
F=`echo $P-config`
L=`echo -l$L | sed -e 's/^-llib/-l/'`
AC_MSG_RESULT(creating $F - generic $V for $L)
test "x$prefix" = xNONE && prefix="$ac_default_prefix"
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
echo '#! /bin/sh' >$F
echo ' ' >>$F
echo 'package="'$P'"' >>$F
echo 'version="'$V'"' >>$F
echo 'libs="'$L'"' >>$F
echo ' ' >>$F
# in the order of occurence a standard automake Makefile
echo 'prefix="'$prefix'"' >>$F
echo 'exec_prefix="'$exec_prefix'"' >>$F
echo 'bindir="'$bindir'"' >>$F
echo 'sbindir="'$sbindir'"' >>$F
echo 'libexecdir="'$libexecdir'"' >>$F
echo 'datadir="'$datadir'"' >>$F
echo 'sysconfdir="'$sysconfdir'"' >>$F
echo 'sharedstatedir="'$sharedstatedir'"' >>$F
echo 'localstatedir="'$localstatedir'"' >>$F
echo 'libdir="'$libdir'"' >>$F
echo 'infodir="'$infodir'"' >>$F
echo 'mandir="'$mandir'"' >>$F
echo 'includedir="'$includedir'"' >>$F
echo 'target="'$target'"' >>$F
echo 'host="'$host'"' >>$F
echo 'build="'$build'"' >>$F
echo ' ' >>$F
echo 'if test "'"\$""#"'" -eq 0; then' >>$F
echo '   cat <<EOF' >>$F
echo 'Usage: $package-config [OPTIONS]' >>$F
echo 'Options:' >>$F
echo '  --prefix[=DIR]) : \$prefix' >>$F
echo '  --package) : \$package' >>$F
echo '  --version) : \$version' >>$F
echo '  --cflags) : -I\$includedir' >>$F
echo '  --libs) : -L\$libdir -l\$package' >>$F
echo '  --help) print all the options (not just these)' >>$F
echo 'EOF' >>$F
echo 'fi' >>$F
echo ' ' >>$F
echo 'o=""' >>$F
echo 'h=""' >>$F
echo 'for i in "[$]@"; do' >>$F
echo '  case $i in' >>$F
echo '  --prefix=*) prefix=`echo $i | sed -e "s/--prefix=//"` ;;' >>$F
echo '  --prefix)    o="$o $prefix" ;;' >>$F
echo '  --package)   o="$o $package" ;;' >>$F
echo '  --version)   o="$o $version" ;;' >>$F
echo '  --cflags) if test "_$includedir" != "_/usr/include"' >>$F
echo '          then o="$o -I$includedir" ; fi' >>$F
echo '  ;;' >>$F
echo '  --libs)      o="$o -L$libdir $libs" ;;' >>$F
echo '  --exec_prefix|--eprefix) o="$o $exec_prefix" ;;' >>$F
echo '  --bindir)                o="$o $bindir" ;;' >>$F
echo '  --sbindir)               o="$o $sbindir" ;;' >>$F
echo '  --libexecdir)            o="$o $libexecdir" ;;' >>$F
echo '  --datadir)               o="$o $datadir" ;;' >>$F
echo '  --datainc)               o="$o -I$datadir" ;;' >>$F
echo '  --datalib)               o="$o -L$datadir" ;;' >>$F
echo '  --sysconfdir)            o="$o $sysconfdir" ;;' >>$F
echo '  --sharedstatedir)        o="$o $sharedstatedir" ;;' >>$F
echo '  --localstatedir)         o="$o $localstatedir" ;;' >>$F
echo '  --libdir)                o="$o $libdir" ;;' >>$F
echo '  --libadd)                o="$o -L$libdir" ;;' >>$F
echo '  --infodir)               o="$o $infodir" ;;' >>$F
echo '  --mandir)                o="$o $mandir" ;;' >>$F
echo '  --target)                o="$o $target" ;;' >>$F
echo '  --host)                  o="$o $host" ;;' >>$F
echo '  --build)                 o="$o $build" ;;' >>$F
echo '  --data)                  o="$o -I$datadir/$package" ;;' >>$F
echo '  --pkgdatadir)            o="$o $datadir/$package" ;;' >>$F
echo '  --pkgdatainc)            o="$o -I$datadir/$package" ;;' >>$F
echo '  --pkgdatalib)            o="$o -L$datadir/$package" ;;' >>$F
echo '  --pkglibdir)             o="$o $libdir/$package" ;;' >>$F
echo '  --pkglibinc)             o="$o -I$libinc/$package" ;;' >>$F
echo '  --pkglibadd)             o="$o -L$libadd/$package" ;;' >>$F
echo '  --pkgincludedir)         o="$o $includedir/$package" ;;' >>$F
echo '  --help) h="1" ;;' >>$F
echo '  -?//*|-?/*//*|-?./*//*|//*|/*//*|./*//*) ' >>$F
echo '       v=`echo $i | sed -e s://:\$:g`' >>$F
echo '       v=`eval "echo $v"` ' >>$F
echo '       o="$o $v" ;; ' >>$F
echo '  esac' >>$F
echo 'done' >>$F
echo ' ' >>$F
echo 'o=`eval "echo $o"`' >>$F
echo 'o=`eval "echo $o"`' >>$F
echo 'eval "echo $o"' >>$F
echo ' ' >>$F
echo 'if test ! -z "$h" ; then ' >>$F
echo 'cat <<EOF' >>$F
echo '  --prefix=xxx)      (what is that for anyway?)' >>$F
echo '  --prefix)         \$prefix        $prefix' >>$F
echo '  --package)        \$package       $package' >>$F
echo '  --version)        \$version       $version' >>$F
echo '  --cflags)         -I\$includedir    unless it is /usr/include' >>$F
echo '  --libs)           -L\$libdir -l\$PACKAGE \$LIBS' >>$F
echo '  --exec_prefix) or... ' >>$F
echo '  --eprefix)        \$exec_prefix   $exec_prefix' >>$F
echo '  --bindir)         \$bindir        $bindir' >>$F
echo '  --sbindir)        \$sbindir       $sbindir' >>$F
echo '  --libexecdir)     \$libexecdir    $libexecdir' >>$F
echo '  --datadir)        \$datadir       $datadir' >>$F
echo '  --sysconfdir)     \$sysconfdir    $sysconfdir' >>$F
echo '  --sharedstatedir) \$sharedstatedir$sharedstatedir' >>$F
echo '  --localstatedir)  \$localstatedir $localstatedir' >>$F
echo '  --libdir)         \$libdir        $libdir' >>$F
echo '  --infodir)        \$infodir       $infodir' >>$F
echo '  --mandir)         \$mandir        $mandir' >>$F
echo '  --target)         \$target        $target' >>$F
echo '  --host)           \$host          $host' >>$F
echo '  --build)          \$build         $build' >>$F
echo '  --data)           -I\$datadir/\$package' >>$F
echo '  --pkgdatadir)     \$datadir/\$package' >>$F
echo '  --pkglibdir)      \$libdir/\$package' >>$F
echo '  --pkgincludedir)  \$includedir/\$package' >>$F
echo '  --help)           generated by ac_create_generic_config.m4' >>$F
echo '  -I//varname and other inc-targets like --pkgdatainc supported' >>$F
echo '  -L//varname and other lib-targets, e.g. --pkgdatalib or --libadd' >>$F
echo 'EOF' >>$F
echo 'fi' >>$F
GENERIC_CONFIG="$F"
AC_SUBST(GENERIC_CONFIG)
])