pkg-config/README
Arch Librarian fcb804effe 2002-09-06 Havoc Pennington <hp@redhat.com>
Author: hp
Date: 2002-09-06 20:00:08 GMT
2002-09-06  Havoc Pennington  <hp@redhat.com>

	* parse.c, pkg.c: handle other_libs other_cflags same
	as -l/-L/-I flags, so we pull in from dependent packages.
	Closes #85244, #90706, #89851
2005-07-14 13:05:17 +00:00

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pkg-config is a script to make putting together all the build
flags when compiling/linking a lot easier.
Report bugs at http://bugzilla.gnome.org (pkg-config is in no way
gnome-specific but gnome.org was a convenient bug tracker).
To use pkg-config, do something like the following in your configure.in
PKG_CHECK_MODULES(GNOME, gtk > 1.2.8 gnomeui >= 1.2.0)
AC_SUBST(GNOME_CFLAGS)
AC_SUBST(GNOME_LIBS)
This puts the neccesary include flags to compile/link something against
libgnomeui and all its dependencies in $(GNOME_CFLAGS), and the -L/-l flags
for linking in $(GNOME_LIBS)
The "gtk > 1.2.8" part is only neccesary if you want to specifically check
if libgtk is version 1.2.8 or higher. Otherwise, the flags for gtk
will be included automatically, since libgnomeui depends on gtk.
So you could just say:
PKG_CHECK_MODULES(GNOME, gnomeui)
for any version of gnomeui.
For more info, there's even a man page, try 'man pkg-config'