AC_PROG_NM
AM_PROG_AS
AX_CHECK_GNU_MAKE
-AC_CHECK_PROGS([PYTHON2], [python2.7 python2 python])
+AM_PATH_PYTHON([2.7],, [:])
+PYTHON2=$PYTHON
+AC_SUBST([PYTHON2])
+
AC_PROG_SED
AC_PROG_MKDIR_P
AX_CHECK_PYTHON_MAKO_MODULE($PYTHON_MAKO_REQUIRED)
-if test -z "$PYTHON2"; then
+if test "$PYTHON2" = ":"; then
if test ! -f "$srcdir/src/util/format_srgb.c"; then
AC_MSG_ERROR([Python not found - unable to generate sources])
fi