diff --git a/bin/applyflags b/bin/applyflags
index 531c89a..afd3bfe 100755
--- a/bin/applyflags
+++ b/bin/applyflags
@@ -7,13 +7,13 @@ bindir=$1
 # optional to force another OOBUILDDIR in the split build
 builddir=$2
 
-if test "z$bindir" == "z"; then
+if test "z$bindir" = "z"; then
     echo "Serious error - requires path to bindir"
     exit 1
 fi
 
 cd $bindir
-source ./setup >& /dev/null
+. ./setup 2>&1 /dev/null
 
 SECTIONS="$OOO_ADDITIONAL_SECTIONS"
 
diff --git a/bin/piece/build-generic b/bin/piece/build-generic
index e1e1e89..4966093 100755
--- a/bin/piece/build-generic
+++ b/bin/piece/build-generic
@@ -1,13 +1,13 @@
-#!/bin/bash
+#!/bin/sh
 
 piece=$1
 ooo_build_tag=$2
 
-source $OO_TOOLSDIR/piece/sys-setup
+. $OO_TOOLSDIR/piece/sys-setup
 
 custom_env="$OO_TOOLSDIR/piece/env-$piece"
 if test -f $custom_env; then
-   source $custom_env
+   . $custom_env
    echo "merged custom environment: $custom_env"
 fi
 
diff --git a/bin/piece/unpack-extras b/bin/piece/unpack-extras
index 8baf33e..3758fe5 100755
--- a/bin/piece/unpack-extras
+++ b/bin/piece/unpack-extras
@@ -1,11 +1,11 @@
-#!/bin/bash
+#!/bin/sh
 
 TOOLSDIR=$1
 OOBUILDDIR=$2
 
 echo "Copying default evolution database into tree"
-$GNUCP -f $TOOLSDIR/src/evolocal.odb $OOBUILDDIR/extras/source/database || exit 1;
+cp -f $TOOLSDIR/src/evolocal.odb $OOBUILDDIR/extras/source/database || exit 1;
 
 echo "Copying custom user-dicts into tree"
 [ -d $OOBUILDDIR/extras/source/wordbook ] || mkdir -p $OOBUILDDIR/extras/source/wordbook
-$GNUCP -f $TOOLSDIR/src/*.dic $OOBUILDDIR/extras/source/wordbook || exit 1;
+cp -f $TOOLSDIR/src/*.dic $OOBUILDDIR/extras/source/wordbook || exit 1;