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Do not use syscall(2) on OS X 10.12 (deprecated).

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This commit is contained in:
Jason Evans 2016-11-02 19:18:33 -07:00
parent 795f6689de
commit d82f2b3473
4 changed files with 24 additions and 4 deletions
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17
configure.ac
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@ -1350,6 +1350,23 @@ if test "x${je_cv_mach_absolute_time}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_MACH_ABSOLUTE_TIME])
fi
dnl Check if syscall(2) is usable. Treat warnings as errors, so that e.g. OS X
dnl 10.12's deprecation warning prevents use.
SAVED_CFLAGS="${CFLAGS}"
JE_CFLAGS_APPEND([-Werror])
JE_COMPILABLE([syscall(2)], [
#define _GNU_SOURCE
#include <sys/syscall.h>
#include <unistd.h>
], [
syscall(SYS_write, 2, "hello", 5);
],
[je_cv_syscall])
CFLAGS="${SAVED_CFLAGS}"
if test "x$je_cv_syscall" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_SYSCALL], [ ])
fi
dnl Check if the GNU-specific secure_getenv function exists.
AC_CHECK_FUNC([secure_getenv],
[have_secure_getenv="1"],