dotty: autotools: add 'lib' to include directories

An upcoming commit need this in order to be able to add an include of
cgraph/exit.h.

Towards https://gitlab.com/graphviz/graphviz/-/issues/2178.

diff --git a/cmd/dotty/Makefile.am b/cmd/dotty/Makefile.am
index 89ba20dcada255e66c4831f87b220bdb6e6c44b4..9084f795508bddc8287a6eb985f01efd44cb83c2 100644 (file)
--- a/cmd/dotty/Makefile.am
+++ b/cmd/dotty/Makefile.am
@@ -3,6 +3,9 @@
 leftydir = $(pkgdatadir)/lefty
 pdfdir = $(pkgdatadir)/doc/pdf
 
+AM_CPPFLAGS = \
+       -I$(top_srcdir)/lib
+
 if WITH_X
 if WITH_WIN32
 bin_PROGRAMS = dotty