From: Nehal J Wani <nehaljw.kkd1@gmail.com>
Date: Sat, 7 Jan 2023 11:41:40 +0000 (+0000)
Subject: Autotools: Make ann file check cross-compilation friendly
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=809241fdc914a1dd349c2468695e735db08fe1dc;p=graphviz

Autotools: Make ann file check cross-compilation friendly

Resolves https://gitlab.com/graphviz/graphviz/-/issues/2335
---

diff --git a/configure.ac b/configure.ac
index 49e027fcd..c3c509514 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1925,7 +1925,7 @@ else
     AC_SUBST([ANN_LIBS])
   ],[
     # fall back discovery for the Debian ecosystem which does not ship an ann.pc
-    AC_CHECK_FILE(/usr/include/ANN/ANN.h, [
+    AS_IF([test -f /usr/include/ANN/ANN.h], [
       ANN_CFLAGS= # nothing required
       AC_CHECK_LIB(ann, ann_visit_pts, [
         ANN_LIBS=-lann