check for taglib of sufficient version by looking at taglib-config

2005-09-20

Akos Maroy <darkeye@tyrell.hu>

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Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. Users of this software should generally follow the principles of the MIT License includings its disclaimer.

cryp.to ac-archive's Installed Packages (released)

Defines and exports TAGLIB_LIBS, TAGLIB_CFLAGS. See taglib-config man page.

AC_DEFUN([AC_CHECK_TAGLIB], [
  succeeded=no

  if test -z "$TAGLIB_CONFIG"; then
    AC_PATH_PROG(TAGLIB_CONFIG, taglib-config, no)
  fi

  if test "$TAGLIB_CONFIG" = "no" ; then
    echo "*** The taglib-config script could not be found. Make sure it is"
    echo "*** in your path, and that taglib is properly installed."
    echo "*** Or see http://developer.kde.org/~wheeler/taglib.html"
  else
    TAGLIB_VERSION=`$TAGLIB_CONFIG --version`
    AC_MSG_CHECKING(for taglib >= $1)
        VERSION_CHECK=`expr $TAGLIB_VERSION \>\= $1`
        if test "$VERSION_CHECK" = "1" ; then
            AC_MSG_RESULT(yes)
            succeeded=yes

            AC_MSG_CHECKING(TAGLIB_CFLAGS)
            TAGLIB_CFLAGS=`$TAGLIB_CONFIG --cflags`
            AC_MSG_RESULT($TAGLIB_CFLAGS)

            AC_MSG_CHECKING(TAGLIB_LIBS)
            TAGLIB_LIBS=`$TAGLIB_CONFIG --libs`
            AC_MSG_RESULT($TAGLIB_LIBS)
        else
            TAGLIB_CFLAGS=""
            TAGLIB_LIBS=""
            ## If we have a custom action on failure, don't print errors, but
            ## do set a variable so people can do so.
            ifelse([$3], ,echo "can't find taglib >= $1",)
        fi

        AC_SUBST(TAGLIB_CFLAGS)
        AC_SUBST(TAGLIB_LIBS)
  fi

  if test $succeeded = yes; then
     ifelse([$2], , :, [$2])
  else
     ifelse([$3], , AC_MSG_ERROR([Library requirements (taglib) not met.]), [$3])
  fi
])