From: Jaroslav Skarvada <jskarvad@redhat.com>
Date: Wed, 26 Apr 2023 12:48:41 +0000 (+0100)
Subject: build: fix build with -mno-ssse3
X-Git-Tag: v9.4~151
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b16553cdad35c286a6078b1bfa503df59403be2b;p=thirdparty%2Fcoreutils.git

build: fix build with -mno-ssse3

Avoid the following error with -mno-ssse3:
 inlining failed in call to 'always_inline' '_mm_shuffle_epi8':
 target specific option mismatch

* configure.ac: Ensure we use ssse3 specific code when
checking whether to enable the pclmul cksum implementation.
---

diff --git a/configure.ac b/configure.ac
index 2b2f9468d5..664d25ec6a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -578,6 +578,7 @@ AC_COMPILE_IFELSE(
     {
       __m128i a, b;
       a = _mm_clmulepi64_si128 (a, b, 0x00);
+      a = _mm_shuffle_epi8 (a, b);
       return 1;
     }
   ]])