make ghc-dep.sh and ghc-pkg-wrapper error if error occurs

ghc-deps.sh

@@ -1,9 +1,9 @@
 #!/bin/sh
 # find rpm provides and requires for Haskell GHC libraries
 
-[ $# -lt 2 ] && echo "Usage: $(basename "$0") [--provides|--requires] %{buildroot} %{ghclibdir} [%{?ghc_version}]" && exit 1
+[ $# -lt 3 ] && echo "Usage: $(basename "$0") [--provides|--requires] %{buildroot} %{ghclibdir} [ghc-version]" && exit 1
 
-set +x
+set +x -e
 
 MODE=$1
 BUILDROOT=$2

ghc-pkg-wrapper

@@ -2,10 +2,11 @@
 
 [ $# -lt 1 ] && echo "Usage: `basename $0` %{buildroot}%{ghclibdir} ..." && exit 1
 
-set +x
+set +x -e
 
 PKGBASEDIR=$1
 shift
+
 if [ -d $PKGBASEDIR/lib ];
 then PKGCONFDIR=$PKGBASEDIR/lib/package.conf.d
 else PKGCONFDIR=$PKGBASEDIR/package.conf.d