configure.ac: check 'tv_nsec' field in 'struct stat'
Detect 'tv_nsec' field in 'struct stat' and set Makefile variable NO_NSEC appropriately. A side-effect of the above detection is that we also determine whether 'stat.st_mtimespec' is available, so, as a bonus, set the Makefile variable USE_ST_TIMESPEC, as well. Signed-off-by: Reuben Hawkins <reubenhwk@gmail.com> Helped-by: Eric Sunshine <sunshine@sunshineco.com> Reviewed-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Reuben Hawkins committed
Jan 8, 2015 at 12:00 UTC
8bd2c972b1e2343620cad5b0f56de0f2524b7564
1 file changed
+13
configure.ac
+13
@@ -754,6 +754,19 @@ AC_CHECK_TYPES([struct itimerval],
754
[#include <sys/time.h>])
755
GIT_CONF_SUBST([NO_STRUCT_ITIMERVAL])
756
#
757
+# Define USE_ST_TIMESPEC=YesPlease when stat.st_mtimespec.tv_nsec exists.
758
+# Define NO_NSEC=YesPlease when neither stat.st_mtim.tv_nsec nor
759
+# stat.st_mtimespec.tv_nsec exists.
760
+AC_CHECK_MEMBER([struct stat.st_mtimespec.tv_nsec])
761
+AC_CHECK_MEMBER([struct stat.st_mtim.tv_nsec])
762
+if test x$ac_cv_member_struct_stat_st_mtimespec_tv_nsec = xyes; then
763
+ USE_ST_TIMESPEC=YesPlease
764
+ GIT_CONF_SUBST([USE_ST_TIMESPEC])
765
+elif test x$ac_cv_member_struct_stat_st_mtim_tv_nsec != xyes; then
766
+ NO_NSEC=YesPlease
767
+ GIT_CONF_SUBST([NO_NSEC])
768
+fi
769
+#
770
# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
771
AC_CHECK_MEMBER(struct dirent.d_ino,
772
[NO_D_INO_IN_DIRENT=],