patch 8.1.2397: should not define __USE_XOPEN
Problem: Should not define __USE_XOPEN. _XOPEN_SOURCE is not needed for
Android.
Solution: Remove __USE_XOPEN and adjust #ifdefs. (Ozaki Kiichi,
closes #5322)
diff --git a/src/vim.h b/src/vim.h
index 19c19de..68e2de1 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -36,7 +36,7 @@
Error: configure did not run properly. Check auto/config.log.
# endif
-# if defined(__gnu_linux__) || defined(__CYGWIN__)
+# if (defined(__linux__) && !defined(__ANDROID__)) || defined(__CYGWIN__)
// Needed for strptime(). Needs to be done early, since header files can
// include other header files and end up including time.h, where these symbols
// matter for Vim.
@@ -44,9 +44,6 @@
# ifndef _XOPEN_SOURCE
# define _XOPEN_SOURCE 700
# endif
-# ifndef __USE_XOPEN
-# define __USE_XOPEN
-# endif
# endif
// for INT_MAX, LONG_MAX et al.