fix out of source build error in lib/common

make[4]: Entering directory '/home/costa/oss/graphviz/build/lib/common'
  CC       arrows.lo
../../../lib/common/arrows.c: In function ‘arrowOrthoClip’:
.....
../../../lib/common/colxlate.c:21:10: fatal error: common/colortbl.h: No such file or directory
   21 | #include <common/colortbl.h>
      |          ^~~~~~~~~~~~~~~~~~~
compilation terminated.

diff --git a/lib/common/Makefile.am b/lib/common/Makefile.am
index c3a0c4b624a7bfe112a7e0782a4dc76eb4484afb..6699051c90b0465ac0a979702d5b7d50a820afe5 100644 (file)
--- a/lib/common/Makefile.am
+++ b/lib/common/Makefile.am
@@ -2,6 +2,7 @@
 
 AM_CPPFLAGS = \
        -I$(top_srcdir)/lib \
+       -I$(top_builddir)/lib \
        -I$(top_srcdir)/libltdl \
        -I$(top_srcdir)/lib/gvc \
        -I$(top_srcdir)/lib/pack \