academic/sage: Fix build on x86.

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

academic/sage/README

@@ -15,7 +15,13 @@ Note that the build will likely spit out many "zero length file" errors,
 which can safely be ignored.
 
 See README.BUILDOPTS for additional (important) information about
-build options and such.
+build options and such. Specifically, if you do not move the installation
+directory via a specification of SAGEROOT, you may need to do something
+like
+
+source /etc/profile.d/sage.ch
+
+so make sure the binary is in your path.
 
 This package does not include the doc files. Those can be found at doc.sagemath.org.
 

academic/sage/sage.SlackBuild

@@ -35,6 +35,16 @@ if [ -z "$ARCH" ]; then
   esac
 fi
 
+#### These lines are to ensure the build can happen on multilib systems.
+if [ "$ARCH" = "i586" ]; then
+LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+LIBDIRSUFFIX="64"
+else
+LIBDIRSUFFIX=""
+fi
+####
+
 CWD=$(pwd)
 TMP=${TMP:-/tmp/SBo}
 PKG=$TMP/package-$PRGNAM
@@ -69,7 +79,13 @@ patch -p1 < $CWD/sage-build-root.patch
 # Thanks to Philip Lacroix <slackph@posteo.de>
 rm build/pkgs/python2/patches/sys_path_security-issue_16202.patch
 
-# The docs do not build correctly, so instead of make, do:
+# Test Fix - this did not work.
+# sed -i "s|/lib|/lib${LIBDIRSUFFIX}|" build/pkgs/iml/spkg-install
+
+
+
+# The docs do not build correctly, so instead of make, do the following:
+LDFLAGS="-L/usr/lib${LIBDIRSUFFIX}" \
 make build
 
 # test all examples in the documentation (over 93,000 line of input)
@@ -114,6 +130,8 @@ fi
 sed "s%SAGEROOT%${SAGEROOT}%" $CWD/$PRGNAM-notebook.desktop > $PKG/usr/share/applications/$PRGNAM-notebook.desktop
 cp src/doc/common/themes/sage/static/sageicon.png $PKG/usr/share/pixmaps/
 
+# Put a line here which *actually* adds sage to the path
+
 # install sagetex to a location that is accessible to the system TeX installation
 cp -a local/share/texmf $PKG/usr/share