AC_HEADER_STDC
AC_CHECK_HEADERS([fcntl.h stdlib.h string.h sys/time.h unistd.h])
+AC_ISC_POSIX
+AC_PROG_CC
+AM_PROG_CC_STDC
+AC_HEADER_STDC
+
+pkg_modules="gtk+-2.0 >= 2.0.0"
+PKG_CHECK_MODULES(PACKAGE, [$pkg_modules])
+AC_SUBST(PACKAGE_CFLAGS)
+AC_SUBST(PACKAGE_LIBS)
+
# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_C_CONST