Fix building, installing, and testing extensions on MS-Windows.

 test/Makefile.in (mpfr-tests, shlib-tests): Add a blank character
 between ' and /FOO/ in Gawk command lines, for the benefit of
 testing under MSYS Bash.
 test/filefuncs.awk (BEGIN): Call 'stat' on gawkapi.o, not on gawk,
 which does not exist on systems that produce gawk.exe.

 README_D/README.pc: Update the pc build and test instructions.

 pc/Makefile.tst (AWK): Set AWKLIBPATH so extensions could be found.
 (LS): New variable.
 (check): Add back shlib-tests and shlib-msg-end.
 (readdir): Add a warning regarding inode reporting by ls.exe.
 (fts, fork, fork2): Add message about expected failure on MinGW.
 pc/Makefile (install): Install the extensions.
 (install-strip): Likewise.
 pc/Makefile.ext: New file.

 io.c (devopen) [__EMX__ || __MINGW32__]: Produce EISDIR on MinGW
 when an attempt to open() a directory fails.
 (two_way_open) [__EMX__ || __MINGW32__]: When trying to open() a
 directory fails with EISDIR, assign FAKE_FD_VALUE to the file
 descriptor and attributes of a directory to its mode bits.  This
 is needed to support the readdir extension.
 gawkapi.h (FAKE_FD_VALUE): New macro, used in io.h and in
 extension/gawkdirfd.h.

 extension/rwarray.c [__MINGW32__]: Include winsock2.h instead of
 arpa/inet.h.
 extension/readdir.c [__MINGW32__]: Include windows.h.
 Include gawkapi.h before gawkdirfd.h, since the former defines
 FAKE_FD_VALUE needed by the latter.
 (ftype): Accept an additional argument, the directory that is
 being read.  Callers changed.
 [!DT_BLK]: Produce the file's type by calling 'stat' on it, if the
 dirent structure doesn't provide that.
 (get_inode): New function, to produce inode values on MS-Windows.
 (dir_get_record): Use it.
 extension/inplace.c (chown, link) [__MINGW32__]: Redirect to existing
 library functions.
 (mkstemp) [__MINGW32__]: New function, for MinGW, which doesn't
 have it in its library.
 (do_inplace_end) [__MINGW32__]: Remove the old file before
 renaming the new, since 'rename' on Windows cannot overwrite
 existing files.
 extension/gawkdirfd.h (ENOTSUP): Define to ENOSYS if not already defined.
 (DIR_TO_FD): If not defined yet, define to FAKE_FD_VALUE.
 extension/filefuncs.c (get_inode) [_WIN32]: New function, produces the
 file index used on Windows as its inode.
 (fill_stat_array) [_WIN32]: Use it.

1 files changed, 18 insertions, 0 deletions

diff --git a/extension/inplace.c b/extension/inplace.c
index ded4746c..ad6f0e23 100644
--- a/extension/inplace.c
+++ b/extension/inplace.c
@@ -51,6 +51,20 @@
 #define	S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
 #endif
 
+#ifdef __MINGW32__
+# define chown(x,y,z)  (0)
+# define link(f1,f2)   rename(f1,f2)
+int
+mkstemp (char *template)
+{
+  char *tmp_fname = _mktemp (template);
+
+  if (tmp_fname)
+    return _open (tmp_fname, O_RDWR | O_CREAT | O_EXCL, S_IREAD | S_IWRITE);
+  return -1;
+}
+#endif
+
 static const gawk_api_t *api;	/* for convenience macros to work */
 static awk_ext_id_t *ext_id;
 static const char *ext_version = "inplace extension: version 1.0";
@@ -225,6 +239,10 @@ do_inplace_end(int nargs, awk_value_t *result)
 		free(bakname);
 	}
 
+#ifdef __MINGW32__
+	unlink(filename.str_value.str);
+#endif
+
 	if (rename(state.tname, filename.str_value.str) < 0)
 		fatal(ext_id, _("inplace_end: rename(`%s', `%s') failed (%s)"),
 			state.tname, filename.str_value.str, strerror(errno));