diff --git a/extra/galculator/galculator.SlackBuild b/extra/galculator/galculator.SlackBuild
index 580aacd..4cb21cd 100644
--- a/extra/galculator/galculator.SlackBuild
+++ b/extra/galculator/galculator.SlackBuild
@@ -3,6 +3,7 @@
 # Slackware build script for galculator
 
 # Copyright 2008, 2009  Frank Caraballo <fecaraballo{at}gmail{dot}com>
+# Copyright 2014-2015 Willy Sudiarto Raharjo <willysr@slackware-id.org>
 # All rights reserved.
 #
 # Redistribution and use of this script, with or without modification, is
@@ -25,7 +26,7 @@
 # Modified by Willy Sudiarto Raharjo for MSB Project
 
 PRGNAM=galculator
-VERSION=${VERSION:-2.1.3}
+VERSION=${VERSION:-2.1.4}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_msb}
 
@@ -37,7 +38,7 @@ if [ -z "$ARCH" ]; then
   esac
 fi
 
-wget -c http://downloads.sourceforge.net/$PRGNAM/$PRGNAM-$VERSION.tar.bz2
+wget -c https://github.com/galculator/galculator/archive/v$VERSION.tar.gz
 
 NUMJOBS=${NUMJOBS:-" -j8 "}
 
@@ -67,19 +68,18 @@ rm -rf $PKG
 mkdir -p $TMP $PKG $OUTPUT
 cd $TMP
 rm -rf $PRGNAM-$VERSION
-tar xvf $CWD/$PRGNAM-$VERSION.tar.?z*
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz || tar xvf $CWD/v$VERSION.tar.gz
 cd $PRGNAM-$VERSION
 chown -R root:root .
 find -L . \
  \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
   -o -perm 511 \) -exec chmod 755 {} \; -o \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
- -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
-LDFLAGS+=' -lm' \
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS" \
-./configure \
+./autogen.sh \
   --prefix=/usr \
   --libdir=/usr/lib${LIBDIRSUFFIX} \
   --sysconfdir=/etc \