Another VPATH fix.

diff --git a/lib/config/Makefile.am b/lib/config/Makefile.am
index d8f0160b0b223065831f615fd8cf05190913a2c4..746454f2e5310aacb2af0c8e325ebf24ccae7f5a 100644 (file)
--- a/lib/config/Makefile.am
+++ b/lib/config/Makefile.am
@@ -16,7 +16,7 @@ AM_YFLAGS = -d
        $(top_builddir)/tools/mkembedconfig/mkembedconfig $< $@
 
 .hh.h:
-       cp $(srcdir)/$< $(srcdir)/$@
+       if [ -e $(srcdir)/$< ]; then cp $(srcdir)/$< $(srcdir)/$@; fi
 
 libconfig_la_SOURCES = \
        base-type.conf \