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From 71a2b2e8a580d2c0bee84b898d8531b27f3c7811 Mon Sep 17 00:00:00 2001
From: Matt Turner <mattst88@gmail.com>
Date: Thu, 2 Mar 2017 04:43:21 +0000
Subject: [PATCH] clover: Work around build failure with AltiVec.
Bugzilla: https://bugs.gentoo.org/show_bug.cgi?id=587210
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68504
Acked-by: Francisco Jerez <currojerez@riseup.net>
(cherry picked from commit 7d1195c1e4d071fe796bf5f210c468ea1cc86225)
---
configure.ac | 14 ++++++++++++++
src/gallium/state_trackers/clover/Makefile.am | 3 +++
2 files changed, 17 insertions(+)
diff --git a/configure.ac b/configure.ac
index fd78fbb..3646e45 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1974,6 +1974,20 @@ if test "x$enable_opencl" = xyes; then
if test "x$have_libelf" != xyes; then
AC_MSG_ERROR([Clover requires libelf])
fi
+
+ if test "x${ac_cv_cxx_compiler_gnu}" = xyes; then
+ altivec_enabled=no
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+ #if !defined(__VEC__) || !defined(__ALTIVEC__)
+ #error "AltiVec not enabled"
+ #endif
+ ])], altivec_enabled=yes)
+
+ if test "$altivec_enabled" = yes; then
+ CLOVER_STD_OVERRIDE="-std=gnu++11"
+ fi
+ AC_SUBST([CLOVER_STD_OVERRIDE])
+ fi
fi
AM_CONDITIONAL(HAVE_CLOVER, test "x$enable_opencl" = xyes)
AM_CONDITIONAL(HAVE_CLOVER_ICD, test "x$enable_opencl_icd" = xyes)
diff --git a/src/gallium/state_trackers/clover/Makefile.am b/src/gallium/state_trackers/clover/Makefile.am
index 8abcfec..edf1e26 100644
--- a/src/gallium/state_trackers/clover/Makefile.am
+++ b/src/gallium/state_trackers/clover/Makefile.am
@@ -33,6 +33,7 @@ noinst_LTLIBRARIES = libclover.la libcltgsi.la libclllvm.la
libcltgsi_la_CXXFLAGS = \
-std=c++11 \
+ $(CLOVER_STD_OVERRIDE) \
$(VISIBILITY_CXXFLAGS)
libcltgsi_la_SOURCES = $(TGSI_SOURCES)
@@ -41,6 +42,7 @@ libclllvm_la_CXXFLAGS = \
-std=c++11 \
$(VISIBILITY_CXXFLAGS) \
$(LLVM_CXXFLAGS) \
+ $(CLOVER_STD_OVERRIDE) \
$(DEFINES) \
$(LIBELF_CFLAGS) \
-DLIBCLC_INCLUDEDIR=\"$(LIBCLC_INCLUDEDIR)/\" \
@@ -51,6 +53,7 @@ libclllvm_la_SOURCES = $(LLVM_SOURCES)
libclover_la_CXXFLAGS = \
-std=c++11 \
+ $(CLOVER_STD_OVERRIDE) \
$(VISIBILITY_CXXFLAGS)
libclover_la_LIBADD = \
--
2.10.2
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