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+?RCS: $Id: d_built_memcmp.U 167 2013-05-08 17:58:00Z rmanfredi $
+?RCS:
+?RCS: Copyright (c) 2011, Raphael Manfredi
+?RCS:
+?RCS: You may redistribute only under the terms of the Artistic License,
+?RCS: as specified in the README file that comes with the distribution.
+?RCS: You may reuse parts of this distribution only within the terms of
+?RCS: that same Artistic License; a copy of which may be found at the root
+?RCS: of the source tree for dist 4.0.
+?RCS:
+?MAKE:d_built_memcmp: Trylink cat
+?MAKE: -pick add $@ %<
+?S:d_built_memcmp:
+?S: This variable conditionally defines the HAS_BUILTIN_MEMCMP symbol, which
+?S: indicates to the C program that __builtin_memcmp is available.
+?S:.
+?C:HAS_BUILTIN_MEMCMP:
+?C: This symbol, if defined, indicates that __builtin_memcmp routine is
+?C: available to compare memory buffers.
+?C:.
+?H:#$d_built_memcmp HAS_BUILTIN_MEMCMP /**/
+?H:.
+?LINT:set d_built_memcmp
+: check for __builtin_memcmp
+$cat >try.c <<EOC
+int main(void)
+{
+ static int ret;
+ char a[5], b[5];
+ ret |= __builtin_memcmp(a, b, 5);
+ return ret ? 0 : 1;
+}
+EOC
+cyn=__builtin_memcmp
+set d_built_memcmp
+eval $trylink
+