lneato: 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/lneato/Makefile.am b/cmd/lneato/Makefile.am
index 04a0ca86fa5aa29b15c45f3fb6dcffab2561dd43..fdd66e972af70f6ab17b57ff18bd3762cbe87c29 100644 (file)
--- a/cmd/lneato/Makefile.am
+++ b/cmd/lneato/Makefile.am
@@ -23,6 +23,9 @@ else
 pdf =
 endif
 
+AM_CPPFLAGS = \
+       -I$(top_srcdir)/lib
+
 AM_CFLAGS = -DLNEATO
 if WITH_WIN32
 lneato_SOURCES = ${top_srcdir}/cmd/dotty/mswin32/dotty.c