Allow in-place overwrites when unmounting read-write mounted WIM

[wimlib] / configure.ac

diff --git a/configure.ac b/configure.ac
index c35b62ab0d53ad93fd8ce6c6fd98cf02fc589adf..799cc91132d55493d8f22ff4f4dd5da829a2b0f7 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -34,6 +34,12 @@ AC_CHECK_HEADERS([endian.h byteswap.h sys/byteorder.h sys/endian.h \
                  sys/param.h machine/endian.h alloca.h stdlib.h stdarg.h \
                  errno.h attr/xattr.h utime.h sys/file.h])
 
+AC_CHECK_MEMBER([struct stat.st_mtim],
+               [AC_DEFINE([HAVE_STAT_NANOSECOND_PRECISION], [1],
+                         [Define to 1 if nanosecond precision timestamps are
+                          supported])],
+               [],
+               [[#include <sys/stat.h>]])
 
 AM_ICONV
 if test "x$am_cv_func_iconv" != "xyes"; then