Detect stat's structure

CMakeLists.txt

@@ -86,9 +86,20 @@ IF (NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
 	OPTION( USE_OPENSSL                     "Link with and use openssl library"             ON )
 ENDIF()
 
-CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtim.tv_nsec sys/stat.h
-	HAVE_STRUCT_STAT_NSEC LANGUAGE C)
-IF(HAVE_STRUCT_STAT_NSEC OR WIN32)
+CHECK_STRUCT_HAS_MEMBER ("struct stat" st_atim "sys/types.h;sys/stat.h"
+	HAVE_STRUCT_STAT_ST_ATIM LANGUAGE C)
+CHECK_STRUCT_HAS_MEMBER ("struct stat" st_atimespec "sys/types.h;sys/stat.h"
+	HAVE_STRUCT_STAT_ST_ATIMESPEC LANGUAGE C)
+
+IF (HAVE_STRUCT_STAT_ST_ATIM)
+	CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtim.tv_nsec sys/stat.h
+		HAVE_STRUCT_STAT_NSEC LANGUAGE C)
+ELSEIF (HAVE_STRUCT_STAT_ST_ATIMESPEC)
+	CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtimespec.tv_nsec sys/stat.h
+		HAVE_STRUCT_STAT_NSEC LANGUAGE C)
+ENDIF()
+
+IF (HAVE_STRUCT_STAT_NSEC OR WIN32)
 	OPTION( USE_NSEC		"Care about sub-second file mtimes and ctimes"	OFF )
 ENDIF()
 
@@ -527,6 +538,10 @@ IF (USE_NSEC)
 	ADD_DEFINITIONS(-DGIT_USE_NSEC)
 ENDIF()
 
+IF (HAVE_STRUCT_STAT_ST_ATIMESPEC)
+	ADD_DEFINITIONS(-DGIT_USE_STAT_ATIMESPEC)
+ENDIF()
+
 ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=64)
 
 # Collect sourcefiles

src/fileops.c

@@ -13,6 +13,12 @@
 #include "win32/findfile.h"
 #endif
 
+#ifdef GIT_USE_STAT_ATIMESPEC
+#define st_atim st_atimespec
+#define st_ctim st_ctimespec
+#define st_mtim st_mtimespec
+#endif
+
 GIT__USE_STRMAP
 
 int git_futils_mkpath2file(const char *file_path, const mode_t mode)
@@ -1034,11 +1040,7 @@ int git_futils_filestamp_check(
 	git_futils_filestamp *stamp, const char *path)
 {
 	struct stat st;
-#if defined(__APPLE__)
-	const struct timespec *statmtime = &st.st_mtimespec;
-#else
 	const struct timespec *statmtime = &st.st_mtim;
-#endif
 
 	/* if the stamp is NULL, then always reload */
 	if (stamp == NULL)
@@ -1080,11 +1082,7 @@ void git_futils_filestamp_set(
 void git_futils_filestamp_set_from_stat(
 	git_futils_filestamp *stamp, struct stat *st)
 {
-#if defined(__APPLE__)
-	const struct timespec *statmtime = &st->st_mtimespec;
-#else
 	const struct timespec *statmtime = &st->st_mtim;
-#endif
 
 	if (st) {
 		stamp->mtime = *statmtime;