diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 60a2a26..8ae0dc6 100644 --- a/configure.ac +++ b/configure.ac @@ -90,6 +90,37 @@ AC_CHECK_FUNCS(bsearch faccessat getpwnam getrlimit isalpha killpg \ sigsetmask stpcpy strchrnul strsignal strtod strtoimax \ strtoumax sysconf) +dnl Check whether it's worth working around FreeBSD PR kern/125009. +dnl The traditional behavior of access/faccessat is crazy, but +dnl POSIX.1-2008 explicitly allows those functions to misbehave. +dnl +dnl Unaffected kernels: +dnl +dnl - all versions of Linux +dnl - NetBSD sys/kern/vfs_subr.c 1.64, 1997-04-23 +dnl - FreeBSD 9 (r212002), 2010-09-10 +dnl - OpenBSD sys/kern/vfs_subr.c 1.166, 2008-06-09 +dnl +dnl Also worked around in Debian's libc0.1 2.13-19 when using +dnl kFreeBSD 8. + +AC_ARG_ENABLE(test-workaround, AS_HELP_STRING(--enable-test-workaround, \ + [Guard against faccessat(2) that tells root all files are executable]),, + [enable_test_workaround=auto]) + +if test "enable_test_workaround" = "auto" && + test "$ac_cv_func_faccessat" = yes; then + case `uname -s 2>/dev/null` in + GNU/kFreeBSD | \ + FreeBSD) + enable_test_workaround=yes + esac +fi +if test "$enable_test_workaround" = "yes"; then + AC_DEFINE([HAVE_TRADITIONAL_FACCESSAT], [1], + [Define if your faccessat tells root all files are executable]) +fi + if test "$enable_fnmatch" = yes; then use_fnmatch= AC_CHECK_FUNCS(fnmatch, use_fnmatch=yes) |