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Update from Gnulib by running admin/merge-gnulib

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This commit is contained in:
Paul Eggert 2021-01-22 11:45:38 -08:00
parent 9143eba0c6
commit a900e641fa
51 changed files with 1841 additions and 514 deletions
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14
lib/free.c
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@ -27,7 +27,21 @@ void
rpl_free (void *p)
#undef free
{
#if defined __GNUC__ && !defined __clang__
/* An invalid GCC optimization
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98396>
would optimize away the assignments in the code below, when link-time
optimization (LTO) is enabled. Make the code more complicated, so that
GCC does not grok how to optimize it. */
int err[2];
err[0] = errno;
err[1] = errno;
errno = 0;
free (p);
errno = err[errno == 0];
#else
int err = errno;
free (p);
errno = err;
#endif
}