Index: head/lang/gcc10/files/patch-libcpp_lex.c
===================================================================
--- head/lang/gcc10/files/patch-libcpp_lex.c	(nonexistent)
+++ head/lang/gcc10/files/patch-libcpp_lex.c	(revision 557833)
@@ -0,0 +1,16 @@
+--- libcpp/lex.c.orig	2020-11-02 10:24:50 UTC
++++ libcpp/lex.c
+@@ -531,11 +531,11 @@ init_vectorized_lexer (void)
+   search_line_fast = impl;
+ }
+ 
+-#elif defined(_ARCH_PWR8) && defined(__ALTIVEC__)
++#elif (GCC_VERSION >= 4005) && defined(_ARCH_PWR8) && defined(__ALTIVEC__)
+ 
+ /* A vection of the fast scanner using AltiVec vectorized byte compares
+    and VSX unaligned loads (when VSX is available).  This is otherwise
+-   the same as the pre-GCC 5 version.  */
++   the same as the AltiVec version.  */
+ 
+ ATTRIBUTE_NO_SANITIZE_UNDEFINED
+ static const uchar *

Property changes on: head/lang/gcc10/files/patch-libcpp_lex.c
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+yes
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