academic/sage: Downgraded to 7.2.

Built in python was compiled against UCS-4.
Slackware's readline is not linked to ncurses, causing
problems similar to here: https://bugs.archlinux.org/task/39731.

We will try to bump sage in the next Slackware release
when everything is fixed, including Python that is
compiled against UCS-4.

Adding a note for now.

Thanks to Mehran Hosseini for the bug report.

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

academic/sage/README

@@ -14,3 +14,14 @@ redefine $TMP and/or $OUTPUT.
 
 See README.BUILDOPTS for additional (important) information about
 build options and such.
+
+NOTE:
+Future SAGE (7.3+) requires some changes in Slackware's core packages:
+- readline must be linked to ncurses
+  Get readline's SlackBuild script, change this line
+  make $NUMJOBS static shared || make static shared  || exit 1
+  into
+  make $NUMJOBS static shared SHLIB_LIBS=-lncurses || make static
+  shared SHLIB_LIBS=-lncurses || exit 1
+  and rebuilt readline.
+- Python rebuilt against UCS-4 (enabled by default in next Slackware)

academic/sage/sage.SlackBuild

@@ -23,7 +23,7 @@
 #  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 PRGNAM=sage
-VERSION=${VERSION:-7.3}
+VERSION=${VERSION:-7.2}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_SBo}
 

academic/sage/sage.info

@@ -1,8 +1,8 @@
 PRGNAM="sage"
-VERSION="7.3"
+VERSION="7.2"
 HOMEPAGE="http://www.sagemath.org"
-DOWNLOAD="http://mirrors.mit.edu/sage/src/sage-7.3.tar.gz"
-MD5SUM="a289e955f9c94be3e4420ee86d8302a7"
+DOWNLOAD="http://mirrors.mit.edu/sage/src/sage-7.2.tar.gz"
+MD5SUM="d0c5e81683dc79a7654206e57e6e727a"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
 REQUIRES=""