Fixing doxygen.cfg target. I'm not a makefile expert, so hopefully this correct.Tested doxygen generation on zion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35390 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/Makefile b/docs/Makefile
index ad58a10..6cea58d 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -18,7 +18,7 @@
 PACKAGE_VERSION = $(shell grep AC_INIT ../autoconf/configure.ac | sed -e 's/[^,]*,[[][[]//' -e 's/]],.*//')
 $(warning VERSION=$(VERSION))
 
-doxygen.cfg: doxygen.cfg.in
+$(PROJ_OBJ_DIR)/doxygen.cfg: doxygen.cfg.in
 	cat $< | sed \
 	  -e 's/@abs_top_srcdir@/../g' \
 	  -e 's/@DOT@/dot/g' \