--- /usr/portage/app-sci/scilab/scilab-2.7-r3.ebuild	2004-03-22 14:25:16.000000000 +0100
+++ /usr/portage/app-sci/scilab/scilab-2.7-r3.ebuild	2004-03-23 17:22:00.073974152 +0100
@@ -12,7 +12,7 @@ 
 LICENSE="scilab"
 SLOT="0"
 KEYWORDS="~x86"
-IUSE="tcltk gtk"
+IUSE="tcltk gtk atlas"
 
 DEPEND="virtual/x11
 	x11-libs/Xaw3d
@@ -23,15 +23,17 @@ 
 			>=dev-libs/glib-2.2
 			media-libs/jpeg
 			media-libs/libpng
-			sys-libs/zlib )"
+			sys-libs/zlib )
+	atlas? ( dev-libs/atlas )"
 
 pkg_setup() {
-	local SCLB
-	SCLB=`which scilab`
-	if [ -e "${SCLB}" ]; then
+	# The following test is due to a bogus pkg_postrm in scilab-2.7-r0/r1,
+	# that interferes with upgrades to higher 2.7 versions.
+	# Remove this warning in 2.8 and later versions.
+	if has_version "<app-sci/scilab-2.7-r2"; then
 		ewarn "Previous version of scilab was detected on your system"
 		ewarn "Unfortunately these versions cause problems for newer ones during update"
-		ewarn 'Please uninstall it with "emerge unmerge scilab" before continuig'
+		ewarn 'Please uninstall it with "emerge unmerge scilab" before continuing'
 		die
 	fi
 }
@@ -46,6 +48,7 @@ 
 
 	use tcltk || myopts="${myopts} --without-tk"
 	use gtk && myopts="${myopts} --with-gtk" || myopts="${myopts} --without-gtk"
+	use atlas && myopts="${myopts} --with-atlas-library=/usr/lib"
 
 	econf ${myopts} || die "./configure failed"
 	export HOME=${S}