* Makefile (subdirs): Replace stdio with stdio-common and $(stdio).

	* configure.in: Grok arg --enable-libio.
	($stdio = libio): Define USE_IN_LIBIO.
	* config.h.in (USE_IN_LIBIO): Add #undef.
	* config.make.in (stdio): New variable, set by configure.
	* Makeconfig (stdio): New variable.
	* stdio.h [USE_IN_LIBIO]: Include libio/stdio.h instead of
	stdio/stdio.h.
	* stdio-common/Makefile: New file.
	* stdio/Makefile: Half the contents moved to stdio-common/Makefile.
	* stdio/_itoa.c: Moved to stdio-common.
	* stdio/_itoa.h: Moved to stdio-common.
	* stdio/asprintf.c: Moved to stdio-common.
	* stdio/bug1.c: Moved to stdio-common.
	* stdio/bug1.input: Moved to stdio-common.
	* stdio/bug2.c: Moved to stdio-common.
	* stdio/bug3.c: Moved to stdio-common.
	* stdio/bug4.c: Moved to stdio-common.
	* stdio/bug5.c: Moved to stdio-common.
	* stdio/bug6.c: Moved to stdio-common.
	* stdio/bug6.input: Moved to stdio-common.
	* stdio/bug7.c: Moved to stdio-common.
	* stdio/dprintf.c: Moved to stdio-common.
	* stdio/errnobug.c: Moved to stdio-common.
	* stdio/getline.c: Moved to stdio-common.
	* stdio/getw.c: Moved to stdio-common.
	* stdio/perror.c: Moved to stdio-common.
	* stdio/printf-parse.h: Moved to stdio-common.
	* stdio/printf-prs.c: Moved to stdio-common.
	* stdio/printf.c: Moved to stdio-common.
	* stdio/printf.h: Moved to stdio-common.
	* stdio/printf_fp.c: Moved to stdio-common.
	* stdio/psignal.c: Moved to stdio-common.
	* stdio/putw.c: Moved to stdio-common.
	* stdio/reg-printf.c: Moved to stdio-common.
	* stdio/scanf.c: Moved to stdio-common.
	* stdio/snprintf.c: Moved to stdio-common.
	* stdio/sprintf.c: Moved to stdio-common.
	* stdio/sscanf.c: Moved to stdio-common.
	* stdio/tempnam.c: Moved to stdio-common.
	* stdio/temptest.c: Moved to stdio-common.
	* stdio/test-fseek.c: Moved to stdio-common.
	* stdio/test-fwrite.c: Moved to stdio-common.
	* stdio/test-popen.c: Moved to stdio-common.
	* stdio/test_rdwr.c: Moved to stdio-common.
	* stdio/tmpfile.c: Moved to stdio-common.
	* stdio/tmpnam.c: Moved to stdio-common.
	* stdio/tst-fileno.c: Moved to stdio-common.
	* stdio/tst-printf.c: Moved to stdio-common.
	* stdio/tstgetln.c: Moved to stdio-common.
	* stdio/tstgetln.input: Moved to stdio-common.
	* stdio/tstscanf.c: Moved to stdio-common.
	* stdio/tstscanf.input: Moved to stdio-common.
	* stdio/vfprintf.c: Moved to stdio-common.
	* stdio/vfscanf.c: Moved to stdio-common.
	* stdio/vprintf.c: Moved to stdio-common.
	* stdio/xbug.c: Moved to stdio-common.
	* sysdeps/generic/Makefile (siglist.c rules): Do this in subdir
	stdio-common instead of stdio.
	* sysdeps/unix/Makefile (errlist.c rules): Likewise.
	* stdio-common/asprintf.c [USE_IN_LIBIO]: Call libio primitive
	function.
	* stdio-common/dprintf.c: Likewise.
	* stdio-common/printf.c: Likewise.
	* stdio-common/scanf.c: Likewise.
	* stdio-common/snprintf.c: Likewise.
	* stdio-common/sprintf.c: Likewise.
	* stdio-common/sscanf.c: Likewise.
	* stdio-common/vprintf.c: Likewise.

	* Makerules: Include $(+depfiles) directly instead of generating
	depend-$(subdir).
	(depend-$(subdir)): Target removed.
	(common-clean): Don't remove depend-$(subdir).

1 files changed, 67 insertions, 0 deletions

diff --git a/stdio-common/test-fseek.c b/stdio-common/test-fseek.c
new file mode 100644
index 0000000000..d56c669a54
--- /dev/null
+++ b/stdio-common/test-fseek.c
@@ -0,0 +1,67 @@
+#include <ansidecl.h>
+#include <stdio.h>
+
+#define TESTFILE "/tmp/test.dat"
+
+int
+main __P((void))
+{
+  FILE *fp;
+  int i, j;
+
+  puts ("\nFile seek test");
+  fp = fopen (TESTFILE, "w");
+  if (fp == NULL)
+    {
+      perror (TESTFILE);
+      return 1;
+    }
+
+  for (i = 0; i < 256; i++)
+    putc (i, fp);
+  if (freopen (TESTFILE, "r", fp) != fp)
+    {
+      perror ("Cannot open file for reading");
+      return 1;
+    }
+
+  for (i = 1; i <= 255; i++)
+    {
+      printf ("%3d\n", i);
+      fseek (fp, (long) -i, SEEK_END);
+      if ((j = getc (fp)) != 256 - i)
+	{
+	  printf ("SEEK_END failed %d\n", j);
+	  break;
+	}
+      if (fseek (fp, (long) i, SEEK_SET))
+	{
+	  puts ("Cannot SEEK_SET");
+	  break;
+	}
+      if ((j = getc (fp)) != i)
+	{
+	  printf ("SEEK_SET failed %d\n", j);
+	  break;
+	}
+      if (fseek (fp, (long) i, SEEK_SET))
+	{
+	  puts ("Cannot SEEK_SET");
+	  break;
+	}
+      if (fseek (fp, (long) (i >= 128 ? -128 : 128), SEEK_CUR))
+	{
+	  puts ("Cannot SEEK_CUR");
+	  break;
+	}
+      if ((j = getc (fp)) != (i >= 128 ? i - 128 : i + 128))
+	{
+	  printf ("SEEK_CUR failed %d\n", j);
+	  break;
+	}
+    }
+  fclose (fp);
+
+  puts ((i > 255) ? "Test succeeded." : "Test FAILED!");
+  return (i > 255) ? 0 : 1;
+}