* 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-popen.c b/stdio-common/test-popen.c
new file mode 100644
index 0000000000..b452f3f63c
--- /dev/null
+++ b/stdio-common/test-popen.c
@@ -0,0 +1,67 @@
+#include <ansidecl.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+void
+DEFUN(write_data, (stream), FILE *stream)
+{
+  int i;
+  for (i=0; i<100; i++)
+    fprintf (stream, "%d\n", i);
+  if (ferror (stream))  {
+    fprintf (stderr, "Output to stream failed.\n");
+    exit (1);
+    }
+}
+
+void
+DEFUN(read_data, (stream), FILE *stream)
+{
+  int i, j;
+
+  for (i=0; i<100; i++)
+    {
+      if (fscanf (stream, "%d\n", &j) != 1 || j != i)
+	{
+	  if (ferror (stream))
+	    perror ("fscanf");
+	  puts ("Test FAILED!");
+	  exit (1);
+	}
+    }
+}
+
+int
+DEFUN_VOID(main)
+{
+  FILE *output, *input;
+  int wstatus, rstatus;
+
+  output = popen ("/bin/cat >/tmp/tstpopen.tmp", "w");
+  if (output == NULL)
+    {
+      perror ("popen");
+      puts ("Test FAILED!");
+      exit (1);
+    }
+  write_data (output);
+  wstatus = pclose (output);
+  printf ("writing pclose returned %d\n", wstatus);
+  input = popen ("/bin/cat /tmp/tstpopen.tmp", "r");
+  if (input == NULL)
+    {
+      perror ("/tmp/tstpopen.tmp");
+      puts ("Test FAILED!");
+      exit (1);
+    }
+  read_data (input);
+  rstatus = pclose (input);
+  printf ("reading pclose returned %d\n", rstatus);
+
+  puts (wstatus | rstatus  ? "Test FAILED!" : "Test succeeded.");
+  exit (wstatus | rstatus);
+}
+
+  
+
+