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-rw-r--r--configure.ac13
1 files changed, 13 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 5c1312f24a..583af8ab5f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -754,6 +754,19 @@ AC_CHECK_TYPES([struct itimerval],
[#include <sys/time.h>])
GIT_CONF_SUBST([NO_STRUCT_ITIMERVAL])
#
+# Define USE_ST_TIMESPEC=YesPlease when stat.st_mtimespec.tv_nsec exists.
+# Define NO_NSEC=YesPlease when neither stat.st_mtim.tv_nsec nor
+# stat.st_mtimespec.tv_nsec exists.
+AC_CHECK_MEMBER([struct stat.st_mtimespec.tv_nsec])
+AC_CHECK_MEMBER([struct stat.st_mtim.tv_nsec])
+if test x$ac_cv_member_struct_stat_st_mtimespec_tv_nsec = xyes; then
+ USE_ST_TIMESPEC=YesPlease
+ GIT_CONF_SUBST([USE_ST_TIMESPEC])
+elif test x$ac_cv_member_struct_stat_st_mtim_tv_nsec != xyes; then
+ NO_NSEC=YesPlease
+ GIT_CONF_SUBST([NO_NSEC])
+fi
+#
# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
AC_CHECK_MEMBER(struct dirent.d_ino,
[NO_D_INO_IN_DIRENT=],