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-rw-r--r--doc/Makefile.in6
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/Makefile.in b/doc/Makefile.in
index 000c9d5..5419d76 100644
--- a/doc/Makefile.in
+++ b/doc/Makefile.in
@@ -1,4 +1,8 @@
all: doxygen
doxygen:
- $(DOXYGEN) $(SUBDIR)Doxyfile
+ if test -n "$(DOXYGEN)"; then \
+ $(DOXYGEN) $(SUBDIR)Doxyfile; \
+ else \
+ echo "Doxygen not found, can not build documentation"; \
+ fi