ref: b2aec36134f39421dc3a434d973409d98bffb3aa
dir: /common/id3lib/m4/lf_local.m4/
dnl Copyright (C) 1988 Eleftherios Gkioulekas <[email protected]>
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2 of the License, or
dnl (at your option) any later version.
dnl
dnl This program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program; if not, write to the Free Software
dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
dnl
dnl As a special exception to the GNU General Public License, if you
dnl distribute this file as part of a program that contains a configuration
dnl script generated by Autoconf, you may include it under the same
dnl distribution terms that you use for the rest of that program.
# ------------------------------------------------------------------------
# The following macro is useful for deep packages. It allows you to
# link all the header files *.h under a certain set of directories
# to be linked under an include directory from the toplevel.
# To use this feature in your configure.in call:
# LF_LINK_HEADERS(dir1 dir2 dir3 .... , [directory] )
# where directory -> put links under include/directory
# dir1 ... -> the directories with header files we want to link
# WARNING: This macro will do --> rm -rf include
# ------------------------------------------------------------------------
AC_DEFUN(LF_LINK_HEADERS,[
# Find out how to link files if we haven't already
if test -z "$LN_S"
then
AC_PROG_LN_S
fi
# Remove the include directory if we haven't done that yet
if test -z "$lf_link_headers"
then
lf_link_headers="we are all Kosh"
rm -rf "$srcdir/include"
fi
# Get the directory from the second argument which is optional
ifelse([$2], ,
[lf_directory="$srcdir/include"] ,
[lf_directory="$srcdir/include/$2"])
${srcdir}/mkinstalldirs "$lf_directory"
# Link them
lf_subdirs="`echo $1`"
for lf_dir in $lf_subdirs
do
# Otherwise go ahead and link
echo "linking headers from $srcdir/$lf_dir"
# Check if the Headers file exists
if test -f "$srcdir/$lf_dir/Headers"
then
for lf_file in `(cd $srcdir/$lf_dir; cat Headers)`
do
rm -f $lf_directory/$lf_file
$LN_S "`pwd`/$srcdir/$lf_dir/$lf_file" "$lf_directory/$lf_file"
done
else
echo "Warning: No Headers file for $srcdir/$lf_dir"
fi
done
])
# --------------------------------------------------------------------------
# The following macro is useful for deep packages.
# To use it in your configure.in call
# LF_SET_INCLUDES(dir1 dir2 dir3 ...)
# and in your Makefile.am set
# @default-includes@
# Then this symbol will be substituted with
# INCLUDES = -I$(prefix) -I$(top_builddir)/include/dir1 ...
# The prefix entry will be skipped if the prefix is equal to /usr/local
# or /usr
# --------------------------------------------------------------------------
AC_DEFUN(LF_SET_INCLUDES,[
# See whether to put an entry for the prefix
if test "$prefix" = "/usr" || test "$prefix" = "/usr/local"
then
default_includes=""
else
default_includes="-I\$(prefix) "
fi
# Get the directory list
lf_dirs="`echo $1`"
# Check whether we have a lib directory. If so put it in
AC_MSG_CHECKING([whether sources have a lib directory])
if test -d "`pwd`/$srcdir/lib"
then
AC_MSG_RESULT([yes])
default_includes="$default_includes -I\$(top_srcdir)/lib"
else
AC_MSG_RESULT([no])
fi
# Now add in the directories. If the list is empty then just add include/
# If the list is not empty then add the subdirectories.
if test -z "$lf_dirs"
then
default_includes="$default_includes -I\$(top_srcdir)/include"
else
for lf_dir in $lf_dirs
do
default_includes="$default_includes -I\$(top_srcdir)/include/$lf_dir"
done
fi
# And that's it
AC_SUBST(default_includes)
])
AC_DEFUN(LF_LINK_HEADERS_FUCK,[
# If we haven't initialized then initialize
if test -z "$lf_link_headers_initialized"
then
lf_link_headers_initialized="we are all Kosh"
rm -rf include
rm -f config.includes
touch config.includes
AC_OUTPUT_COMMANDS([
cat config.includes | awk '{
print "lf_dir=" $$1
print "lf_directory=" $$2
print "echo \"Linking headers from $lf_dir\" "
print "if test -f \"$lf_dir/Headers\" "
print "then"
print " for lf_file in `(cd $lf_dir; cat Headers)`"
print " do"
print " rm -f $lf_directory/$lf_file"
print " ln `pwd`/$lf_dir/$lf_file $lf_directory/$lf_file"
print " done"
print "else"
print " echo \"Warning: No headers file for $lf_dir\" "
print "fi"
}' | sh
])
fi
# Get the directory from the second argument which is optional
ifelse([$2], ,
[lf_directory=include] ,
[lf_directory=include/$2])
mkinstalldirs $lf_directory 2> /dev/null > /dev/null
# Go over the subdirectories and add entries to config.includes
lf_subdirs=`echo $1`
for lf_dir in $lf_subdirs
do
echo "$lf_dir $lf_directory" >> config.includes
done
])