+
+test_program_errors=0
+
+function test_program {
+ if ! command -v $1 >/dev/null 2>&1 ; then
+ echo "Missing program '$1'."
+ test_program_errors=1
+ fi
+}
+
+for prog in autoconf automake libtool pkg-config ; do
+ test_program $prog
+ done
+
+if test $(uname -s) != "Darwin" ; then
+ test_program gettext
+ fi
+
+test $test_program_errors -ne 1 || exit 1
+
+#-------------------------------------------------------------------------------
+