From 68c4570a4dea8ed6fefaea50943fb74ea8f78319 Mon Sep 17 00:00:00 2001
From: Martin Liska <mliska@suse.cz>
Date: Wed, 25 Mar 2020 13:34:53 +0100
Subject: Do not error about missing zstd unless --with-zstd.

	PR lto/94259
	* configure.ac: Report error only when --with-zstd
	is used.
	* configure: Regenerate.
---
 gcc/configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'gcc/configure.ac')

diff --git a/gcc/configure.ac b/gcc/configure.ac
index 0051963..fdee9ea 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -1371,7 +1371,7 @@ AC_MSG_RESULT($gcc_cv_header_zstd_h)
 if test $gcc_cv_header_zstd_h = yes; then
   AC_DEFINE(HAVE_ZSTD_H, 1,
 	[Define if you have a working <zstd.h> header file.])
-else
+elif test "x$with_zstd" != x; then
     as_fn_error $? "Unable to find zstd.h.  See config.log for details." "$LINENO" 5
 fi
 
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