gtk-config is a tool that is used to configure to determine the compiler and linker flags that should be used to compile and link programs that use GTK+. It is also used internally to the .m4 macros for GNU autoconf that are included with GTK+.

--version

Print the currently installed version of GTK+ on the standard output.

--libs

Print the linker flags that are necessary to link a GTK+ program.

--cflags

Print the compiler flags that are necessary to compile a GTK+ program.

--prefix=PREFIX

If specified, use PREFIX instead of the installation prefix that GTK+ was built with when computing the output for the --cflags and --libs options. This option is also used for the exec prefix if --exec-prefix was not specified. This option must be specified before any --libs or --cflags options.

--exec-prefix=PREFIX

If specified, use PREFIX instead of the installation exec prefix that GTK+ was built with when computing the output for the --cflags and --libs options. This option must be specified before any --libs or --cflags options.

Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation.