commit 7d1195c1e4d071fe796bf5f210c468ea1cc86225
author Matt Turner <mattst88@gmail.com> Thu Mar 02 04:43:21 2017 +0000
committer Matt Turner <mattst88@gmail.com> Thu Mar 02 15:49:00 2017 -0800
tree 9ccbf827536d6d256712c56ee8a513ffd34d880c
parent d7d64f1091006fb6faa48705c53f19ff5c657bc8

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>

configure.ac

diff --git a/configure.ac b/configure.ac
index a3d1a00..57c4b1e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2033,6 +2033,20 @@
        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
+
     llvm_require_version $LLVM_REQUIRED_OPENCL "opencl"
 
     llvm_add_default_components "opencl"