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configure.ac: fix build on systems without SIMD support 

HAVE_AVX2, HAVE_SSE3 and HAVE_SSE4_1 were never defined if CPU
architecture doesn't match the (86*|x86_64*|amd64*) condition.

Change-Id: If0c3128f9768f95c1f5f955db242e71c81384c6c
This commit is contained in:
Vadim Yanitskiy 2017-05-10 01:01:13 +07:00 committed by Holger Freyther
parent b904091173
commit 13f4762827
1 changed files with 4 additions and 3 deletions
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7
m4/ax_check_simd.m4
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@ -41,6 +41,10 @@ AC_DEFUN([AX_CHECK_SIMD],
[
AC_REQUIRE([AC_CANONICAL_HOST])
AM_CONDITIONAL(HAVE_AVX2, false)
AM_CONDITIONAL(HAVE_SSE3, false)
AM_CONDITIONAL(HAVE_SSE4_1, false)
case $host_cpu in
i[[3456]]86*|x86_64*|amd64*)
AX_CHECK_COMPILE_FLAG(-mavx2, ax_cv_support_avx2_ext=yes, [])
@ -51,7 +55,6 @@ AC_DEFUN([AX_CHECK_SIMD],
AM_CONDITIONAL(HAVE_AVX2, true)
else
AC_MSG_WARN([Your compiler does not support AVX2 instructions])
AM_CONDITIONAL(HAVE_AVX2, false)
fi
AX_CHECK_COMPILE_FLAG(-msse3, ax_cv_support_sse3_ext=yes, [])
@ -62,7 +65,6 @@ AC_DEFUN([AX_CHECK_SIMD],
AM_CONDITIONAL(HAVE_SSE3, true)
else
AC_MSG_WARN([Your compiler does not support SSE3 instructions])
AM_CONDITIONAL(HAVE_SSE3, false)
fi
AX_CHECK_COMPILE_FLAG(-msse4.1, ax_cv_support_sse41_ext=yes, [])
@ -73,7 +75,6 @@ AC_DEFUN([AX_CHECK_SIMD],
AM_CONDITIONAL(HAVE_SSE4_1, true)
else
AC_MSG_WARN([Your compiler does not support SSE4.1 instructions])
AM_CONDITIONAL(HAVE_SSE4_1, false)
fi
;;
esac