From 08e543ea6f4b9ba5f4d80b79b74fdd0b570687e7 Mon Sep 17 00:00:00 2001
From: Lubomir Rintel <lkundrak@v3.sk>
Date: Tue, 29 May 2018 10:34:21 +0200
Subject: build: find is required by libtool

It's not necessarily present among the packages in a minimal
installation (such as Fedora's docker image). Worse even, libtool just
ends up not linking to some .la libraries.

Don't assume it's there.
---
 configure.ac | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/configure.ac b/configure.ac
index 5477377d..e3296d99 100644
--- a/configure.ac
+++ b/configure.ac
@@ -39,6 +39,11 @@ if test x$has_file = xno ; then
     AC_MSG_ERROR(["file" utility not found.])
 fi
 
+AC_CHECK_PROG([has_find], find, yes, no)
+if test x$has_find = xno ; then
+    AC_MSG_ERROR(["find" utility not found.])
+fi
+
 dnl Define _GNU_SOURCE for various things like strcasestr()
 AC_USE_SYSTEM_EXTENSIONS
 
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