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Allow the use of readlinkat over readlink.

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This can be useful in situations where readlink is disallowed.
This commit is contained in:
David Goldblatt
2018-08-03 12:47:40 -07:00
committed by David Goldblatt
parent 126252a7e6
commit e8ec9528ab
3 changed files with 27 additions and 0 deletions
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16
configure.ac
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@@ -1277,6 +1277,22 @@ if test "x$enable_log" = "x1" ; then
fi
AC_SUBST([enable_log])
dnl Do not use readlinkat by default
AC_ARG_ENABLE([readlinkat],
[AS_HELP_STRING([--enable-readlinkat], [Use readlinkat over readlink])],
[if test "x$enable_readlinkat" = "xno" ; then
enable_readlinkat="0"
else
enable_readlinkat="1"
fi
],
[enable_readlinkat="0"]
)
if test "x$enable_readlinkat" = "x1" ; then
AC_DEFINE([JEMALLOC_READLINKAT], [ ])
fi
AC_SUBST([enable_readlinkat])
JE_COMPILABLE([a program using __builtin_unreachable], [
void foo (void) {