Try to make svnversion test more portable, based on Sjoerd's suggestion
diff --git a/Makefile.pre.in b/Makefile.pre.in
index 079e929..507399b 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -349,7 +349,7 @@
$(SIGNAL_OBJS) \
$(MODOBJS) \
$(srcdir)/Modules/getbuildinfo.c
- if test -d $(srcdir)/.svn -a ! -z "`type -t svnversion`" ; then \
+ if test -d $(srcdir)/.svn -a "`which svnversion 2> /dev/null`"; then \
svnversion $(srcdir) >buildno; \
elif test -f buildno; then \
expr `cat buildno` + 1 >buildno1; \