A GTK+ installation includes the command gtk-config
for identifying
where the libraries and header files are installed, including both
GTK+ and plain X11 libraries. It can be
included directly in the compilation command line by writing
gcc -Wall -g -o sample sample.c `gtk-config --cflags` `gtk-config --libs`
Note the use of back quotes around the gtk-config command. The
arguments --cflags and --libs may be placed
together in one command: `gtk-config --cflags --libs`.
The GTK+ libraries are also recognised by the autoconf program, which produces a ./configure file used for automatically creating a makefile appropriate for compiling the program.