--- pjproject-0.5.5.1/pjsip/build/Makefile.orig	2006-06-18 01:02:21.000000000 +0000
+++ pjproject-0.5.5.1/pjsip/build/Makefile	2006-06-18 01:04:48.000000000 +0000
@@ -88,7 +88,10 @@
 all: $(TARGETS)
 
 doc:
-	cd .. && doxygen docs/doxygen.cfg
+	cd .. && \
+	if test -f docs/doxygen.cfg; then \
+		doxygen docs/doxygen.cfg; \
+	fi
 
 dep: depend
 distclean: realclean
--- pjproject-0.5.5.1/pjsip-apps/build/Makefile.orig	2006-06-18 00:57:47.000000000 +0000
+++ pjproject-0.5.5.1/pjsip-apps/build/Makefile	2006-06-18 01:00:20.000000000 +0000
@@ -68,7 +68,10 @@
 all: $(TARGETS)
 
 doc:
-	cd .. && doxygen docs/doxygen.cfg
+	cd .. && \
+	if test -f docs/doxygen.cfg; then \
+		doxygen docs/doxygen.cfg; \
+	fi
 
 dep: depend
 distclean: realclean
--- pjproject-0.5.5.1/pjlib/build/Makefile.orig	2006-06-18 01:03:12.000000000 +0000
+++ pjproject-0.5.5.1/pjlib/build/Makefile	2006-06-18 01:05:32.000000000 +0000
@@ -55,7 +55,10 @@
 all: $(TARGETS)
 
 doc:
-	cd .. && doxygen docs/doxygen.cfg
+	cd .. && \
+	if test -f docs/doxygen.cfg; then \
+		doxygen docs/doxygen.cfg; \
+	fi
 
 print:
 	$(MAKE) -f $(RULES_MAK) APP=PJLIB app=pjlib print_lib
--- pjproject-0.5.5.1/pjlib-util/build/Makefile.orig	2006-06-18 01:06:22.000000000 +0000
+++ pjproject-0.5.5.1/pjlib-util/build/Makefile	2006-06-18 01:06:35.000000000 +0000
@@ -47,7 +47,10 @@
 all: $(TARGETS)
 
 doc:
-	cd .. && doxygen docs/doxygen.cfg
+	cd .. && \
+	if test -f docs/doxygen.cfg; then \
+		doxygen docs/doxygen.cfg; \
+	fi
 
 dep: depend
 distclean: realclean
--- pjproject-0.5.5.1/pjmedia/build/Makefile.orig	2006-06-18 01:06:54.000000000 +0000
+++ pjproject-0.5.5.1/pjmedia/build/Makefile	2006-06-18 01:07:14.000000000 +0000
@@ -132,7 +132,10 @@
 all: $(TARGETS)
 
 doc:
-	cd .. && doxygen docs/doxygen.cfg
+	cd .. && \
+	if test -f docs/doxygen.cfg; then \
+		doxygen docs/doxygen.cfg; \
+	fi
 
 dep: depend
 distclean: realclean