diff --git a/CMakeLists.txt b/CMakeLists.txt
index 808cfb0..4bcf0e1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -26,6 +26,10 @@ include(CheckIncludeFileCXX)
 check_include_file_cxx(endian.h HAVE_ENDIAN_H)
 check_include_file_cxx(sys/endian.h HAVE_SYS_ENDIAN_H)
 
+include(CheckStructHasMember)
+check_struct_has_member("struct stat" st_mtim sys/stat.h HAVE_STAT_ST_MTIM LANGUAGE CXX)
+check_struct_has_member("struct stat" st_mtimespec sys/stat.h HAVE_STAT_ST_MTIMESPEC LANGUAGE CXX)
+
 configure_file(src/config.h.in config.h @ONLY)
 include_directories(BEFORE src "${CMAKE_BINARY_DIR}" ${OGG_INCLUDE_DIRS} ${Iconv_INCLUDE_DIRS})
 
diff --git a/src/config.h.in b/src/config.h.in
index 7699db8..8793e25 100644
--- a/src/config.h.in
+++ b/src/config.h.in
@@ -3,3 +3,5 @@
 
 #cmakedefine HAVE_ENDIAN_H @HAVE_ENDIAN_H@
 #cmakedefine HAVE_SYS_ENDIAN_H @HAVE_SYS_ENDIAN_H@
+#cmakedefine HAVE_STAT_ST_MTIM @HAVE_STAT_ST_MTIM@
+#cmakedefine HAVE_STAT_ST_MTIMESPEC @HAVE_STAT_ST_MTIMESPEC@
diff --git a/src/system.cc b/src/system.cc
index 7357a03..5420e74 100644
--- a/src/system.cc
+++ b/src/system.cc
@@ -179,6 +179,13 @@ ot::status ot::get_file_timestamp(const char* path, timespec& mtime)
 	struct stat st;
 	if (stat(path, &st) == -1)
 		return {st::standard_error, path + ": stat error: "s + strerror(errno)};
-	mtime = st.st_mtim; // more precise than st_mtime
+#if defined(HAVE_STAT_ST_MTIM)
+	mtime = st.st_mtim;
+#elif defined(HAVE_STAT_ST_MTIMESPEC)
+	mtime = st.st_mtimespec;
+#else
+	mtime.tv_sec = st.st_mtime;
+	mtime.tv_nsec = st.st_mtimensec;
+#endif
 	return st::ok;
 }