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Index: data/skeletons/yacc.c
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--- data/skeletons/yacc.c.orig 2018-10-29 18:37:53.000000000 +0100
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+++ data/skeletons/yacc.c 2018-10-30 08:12:59.695888000 +0100
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@@ -1636,7 +1636,10 @@
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users should not rely upon it. Assigning to YYVAL
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unconditionally makes the parser a bit smaller, and it avoids a
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GCC warning that YYVAL may be used uninitialized. */
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+if (yylen)
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yyval = yyvsp[1-yylen];
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+else
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+ memset(&yyval, 0, sizeof(yyval));
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]b4_locations_if(
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[[ /* Default location. */
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Index: lib/spawn.in.h
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--- lib/spawn.in.h.orig 2018-09-20 06:51:32.000000000 +0200
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+++ lib/spawn.in.h 2018-10-30 08:12:59.696106000 +0100
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@@ -128,6 +128,7 @@
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# define POSIX_SPAWN_SETSCHEDULER 0
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# endif
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#else
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+#if !@HAVE_POSIX_SPAWN@ || defined(__APPLE__)
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# if @REPLACE_POSIX_SPAWN@
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/* Use the values from the system, for better compatibility. */
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/* But this implementation does not support AIX extensions. */
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@@ -141,6 +142,7 @@
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# define POSIX_SPAWN_SETSCHEDULER 0x20
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# endif
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#endif
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+#endif
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/* A GNU extension. Use the next free bit position. */
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#ifndef POSIX_SPAWN_USEVFORK
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# define POSIX_SPAWN_USEVFORK \
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