-dnl Check that off_t is defined as an integer type.
-dnl Solaris sometimes declares it as a struct, if it
-dnl thinks that the compiler does not support `long long'.
-AC_COMPILE_IFELSE([#include <sys/types.h>
-#include <unistd.h>
-off_t x = 0;
-int main (void)
-{
- lseek (0, 1, 2);
- return 0;
-}], [], [AC_MSG_ERROR(
-[Your system's definition of off_t is broken. You are probably
-using Solaris. You can probably fix the problem with
-`--disable-largefile' or `CFLAGS=-ansi'.])])
-
-AC_CHECK_LIB(gslcblas,main,,AC_MSG_ERROR([You must install libgslcblas]))
-AC_CHECK_LIB(gsl, gsl_cdf_chisq_Q,,
- AC_MSG_ERROR([You must install libgsl version 1.4 or later]))
-
-AC_ARG_WITH(ncurses,
-[ --without-ncurses don't compile in ncurses command line editing])
-
-if test "x$with_ncurses" = x"yes"; then
-AC_CHECK_LIB(ncurses, tgetent, LIBS="-lncurses $LIBS" termcap=yes,
- AC_CHECK_LIB(termcap, tgetent, LIBS="-ltermcap $LIBS" termcap=yes,
- termcap=no))
+
+AC_ARG_WITH(
+ gui,
+ [AS_HELP_STRING([--without-gui], [don't build the PSPPIRE gui])])
+
+if test x"$with_gui" != x"no" ; then
+ PKG_CHECK_MODULES(GTK, gtk+-2.0 >= 2.8.0,,
+ [PSPP_REQUIRED_PREREQ([gtk+ 2.0 v2.8.0 or later (or use --without-gui)])])
+ PKG_CHECK_MODULES(GLADE, libglade-2.0 >= 2.6.0,,
+ [PSPP_REQUIRED_PREREQ([libglade 2.0 (or use --without-gui)])])