make this work with non-gnu version of find
diff --git a/Makefile b/Makefile
index 133b6fb..36f73ef 100644
--- a/Makefile
+++ b/Makefile
@@ -34,10 +34,10 @@
LOXI_OUTPUT_DIR = loxi_output
# Generated files depend on all Loxi code and input files
-LOXI_PY_FILES=$(shell find \( -name loxi_output -prune \
+LOXI_PY_FILES=$(shell find . \( -name loxi_output -prune \
-o -name templates -prune \
-o -name tests -prune \
- -o -true \
+ -o -name '*' \
\) -a -name '*.py')
LOXI_TEMPLATE_FILES=$(shell find */templates -type f -a \
\! \( -name '*.cache' -o -name '.*' \))