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-rw-r--r--libcpp/lex.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/libcpp/lex.c b/libcpp/lex.c
index bc0086df1d5..a94e57282d8 100644
--- a/libcpp/lex.c
+++ b/libcpp/lex.c
@@ -264,7 +264,17 @@ search_line_acc_char (const uchar *s, const uchar *end ATTRIBUTE_UNUSED)
}
}
-#if (GCC_VERSION >= 4005) && (defined(__i386__) || defined(__x86_64__))
+/* Disable on Solaris 2/x86 until the following problems can be properly
+ autoconfed:
+
+ The Solaris 8 assembler cannot assemble SSE2/SSE4.2 insns.
+ The Solaris 9 assembler cannot assemble SSE4.2 insns.
+ Before Solaris 9 Update 6, SSE insns cannot be executed.
+ The Solaris 10+ assembler tags objects with the instruction set
+ extensions used, so SSE4.2 executables cannot run on machines that
+ don't support that extension. */
+
+#if (GCC_VERSION >= 4005) && (defined(__i386__) || defined(__x86_64__)) && !(defined(__sun__) && defined(__svr4__))
/* Replicated character data to be shared between implementations.
Recall that outside of a context with vector support we can't
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