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From 567815df38a2ff54ad7478a90bd75c91e434236a Mon Sep 17 00:00:00 2001
From: makepost <makepost@firemail.cc>
Date: Mon, 24 Dec 2018 03:13:16 +0200
Subject: [PATCH] Use st_mtim if st_mtime is macro, fix #1510
In POSIX.1-2008, sys_stat has a st_mtim member and a st_mtime backward
compatibility macro. Should help avoid hardcoding platform detection.
---
src/disk_interface.cc | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
--- a/src/disk_interface.cc
+++ b/src/disk_interface.cc
@@ -202,19 +202,13 @@ TimeStamp RealDiskInterface::Stat(const
// that it doesn't exist.
if (st.st_mtime == 0)
return 1;
-#if defined(__APPLE__) && !defined(_POSIX_C_SOURCE)
+#if defined(_AIX)
+ return (int64_t)st.st_mtime * 1000000000LL + st.st_mtime_n;
+#elif defined(__APPLE__)
return ((int64_t)st.st_mtimespec.tv_sec * 1000000000LL +
st.st_mtimespec.tv_nsec);
-#elif (_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700 || defined(_BSD_SOURCE) || defined(_SVID_SOURCE) || \
- defined(__BIONIC__) || (defined (__SVR4) && defined (__sun)) || defined(__FreeBSD__))
- // For glibc, see "Timestamp files" in the Notes of http://www.kernel.org/doc/man-pages/online/pages/man2/stat.2.html
- // newlib, uClibc and musl follow the kernel (or Cygwin) headers and define the right macro values above.
- // For bsd, see https://github.com/freebsd/freebsd/blob/master/sys/sys/stat.h and similar
- // For bionic, C and POSIX API is always enabled.
- // For solaris, see https://docs.oracle.com/cd/E88353_01/html/E37841/stat-2.html.
+#elif defined(st_mtime) // A macro, so we're likely on modern POSIX.
return (int64_t)st.st_mtim.tv_sec * 1000000000LL + st.st_mtim.tv_nsec;
-#elif defined(_AIX)
- return (int64_t)st.st_mtime * 1000000000LL + st.st_mtime_n;
#else
return (int64_t)st.st_mtime * 1000000000LL + st.st_mtimensec;
#endif