From d543d9c0f44a89f30ec1670f16c698b5da801476 Mon Sep 17 00:00:00 2001 From: David Michael Date: Wed, 3 Dec 2014 21:24:17 -0500 Subject: compat: convert modes to use portable file type values This adds simple wrapper functions around calls to stat(), fstat(), and lstat() that translate the operating system's native file type bits to those used by most operating systems. It also rewrites the S_IF* macros to the common values, so all file type processing is performed using the translated modes. This makes projects portable across operating systems that use different file type definitions. Only the file type bits may be affected by these compatibility functions; the file permission bits are assumed to be 07777 and are passed through unchanged. Signed-off-by: David Michael Signed-off-by: Junio C Hamano --- configure.ac | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'configure.ac') diff --git a/configure.ac b/configure.ac index 4b1ae7c3c9..f75609e743 100644 --- a/configure.ac +++ b/configure.ac @@ -865,6 +865,29 @@ else SNPRINTF_RETURNS_BOGUS= fi GIT_CONF_SUBST([SNPRINTF_RETURNS_BOGUS]) +# +# Define NEEDS_MODE_TRANSLATION if your OS strays from the typical file type +# bits in mode values. +AC_CACHE_CHECK([whether the platform uses typical file type bits], + [ac_cv_sane_mode_bits], [ +AC_EGREP_CPP(yippeeyeswehaveit, + AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], +[#if S_IFMT == 0170000 && \ + S_IFREG == 0100000 && S_IFDIR == 0040000 && S_IFLNK == 0120000 && \ + S_IFBLK == 0060000 && S_IFCHR == 0020000 && \ + S_IFIFO == 0010000 && S_IFSOCK == 0140000 +yippeeyeswehaveit +#endif +]), + [ac_cv_sane_mode_bits=yes], + [ac_cv_sane_mode_bits=no]) +]) +if test $ac_cv_sane_mode_bits = yes; then + NEEDS_MODE_TRANSLATION= +else + NEEDS_MODE_TRANSLATION=UnfortunatelyYes +fi +GIT_CONF_SUBST([NEEDS_MODE_TRANSLATION]) ## Checks for library functions. -- cgit v1.2.3