don't use sub-shell, better VERSION

e/emacs-chess/emacs-chess.SlackBuild

@@ -1,9 +1,8 @@
 #!/bin/sh -x
 
 # variables
-VERSION=master_$(date +"%Y.%m.%d_%H.%M")
-BUILD=1
-
+VERSION=$(date +"%Y.%m.%d_%H.%M")
+BUILD=2
 
 TAG=cyco
 OUTPUT=/tmp
@@ -32,14 +31,14 @@ if [ ! -e $REPOSITORY ] ; then
         mkdir -p $(dirname $REPOSITORY)
         cd $(dirname $REPOSITORY)
         git clone "https://github.com/jwiegley/emacs-chess.git" $PRGNAM
-fi
-
+else
 	( cd $REPOSITORY
 		git pull
 	)
+fi
 
 cp -R $REPOSITORY $TMP
-( cd $TMP/$PRGNAM
+cd $TMP/$PRGNAM
 ./autogen.sh
 ./configure \
     --prefix=$PREFIX \
@@ -47,12 +46,13 @@ cp -R $REPOSITORY $TMP
 make
 make install DESTDIR=$PKG
 rm $PKG$PREFIX/info/dir
-)
+find $PKG$PREFIX/info/ -type f -name \*.info -exec gzip -9 {} \;
+
+VERSION=$(grep version $PKG$PREFIX/share/emacs/site-lisp/_pkg.el | grep -o '[0-9.]*')_$VERSION
 
 # correction
-( cd $PKG
+cd $PKG
 chown -R root:root *
-)
 
 # embaumement
 mkdir -p $PKG/install
@@ -88,5 +88,4 @@ $PRGNAM:
 EOF
 
 # empaquetage
-cd $PKG
 makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.txz