fix configure bug that showed up on OS X (couldn't find X11/Dialog.h)

X_CFLAGS (set by AC_PATH_XTRA) was not used in Makefile.am. It was used in tests for X11/Dialog.h, etc. so configure worked, but make didn't.

diff --git a/Makefile.am b/Makefile.am
index c388b7e..aa34dbc 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -67,7 +67,7 @@ EXTRA_DIST = pixmaps shogi png sounds winboard \
 
 DISTCLEANFILES = stamp-h
 
-AM_CPPFLAGS=-DINFODIR='"$(infodir)"' @CAIRO_CFLAGS@ @FRONTEND_CFLAGS@  -DSYSCONFDIR='"$(sysconfdir)"' \
+AM_CPPFLAGS=-DINFODIR='"$(infodir)"' @X_CFLAGS@ @CAIRO_CFLAGS@ @FRONTEND_CFLAGS@  -DSYSCONFDIR='"$(sysconfdir)"' \
            -DLOCALEDIR='"$(localedir)"' -DSVGDIR='"$(svgdir)"' $(headers)
 
 ACLOCAL_AMFLAGS = -I m4