--- grace-5.1.12-r1.ebuild.orig	2003-10-29 11:40:31.000000000 -0500
+++ grace-5.1.12-r1.ebuild	2003-10-29 11:44:09.000000000 -0500
@@ -16,10 +16,10 @@
 DEPEND="virtual/x11
 	virtual/motif
 	>=sys-libs/zlib-1.0.3
-	>=dev-libs/fftw-2.1.3
-	>=app-sci/netcdf-3.0
 	>=media-libs/t1lib-1.3.1
 	>=media-libs/tiff-3.5
+	fftw? ( >=dev-libs/fftw-2.1.3 )
+	netcdf? ( >=app-sci/netcdf-3.0 )
 	png? ( >=media-libs/libpng-0.9.6 )
 	jpeg? ( media-libs/jpeg )
 	pdflib? ( >=media-libs/pdflib-4.0.3 )
@@ -76,8 +76,8 @@
 	econf \
 		--enable-grace-home=/usr/share/grace \
 		--with-helpviewer=${gracehelpviewer} \
-		--with-fftw \
-		--enable-netcdf \
+		`use_with fftw` \
+		`use_enable netcdf` \
 		`use_enable debug` \
 		`use_enable jpeg jpegdrv` \
 		`use_enable png pngdrv` \