forkpty, openpty: split functions into new modules

The pty module was doing too much - replacing the header and checking
for functions.  In the future, when we provide a working forkpty for
Solaris and HP-UX, and a stub for mingw, then the separation will be
even more useful.

* modules/pty (Makefile.am): Substitute new witnesses.
(Libraries): Move library detection...
* modules/forkpty: ...into new module.
* modules/openpty: Another new module.
* modules/pty-tests: Rename and split...
* modules/forkpty-tests: ...to this...
* modules/openpty-tests: ...and this.
* tests/test-pty.c: Rename and split...
* tests/test-forkpty.c: ...to this...
* tests/test-openpty.c: ...and this.
* m4/pty_h.m4 (gl_PTY_H_DEFAULTS): Add new witnesses.
(gl_PTY): Split library searching...
* m4/pty.m4 (gl_PTY_LIB): ...into new file.
(gl_FORKPTY, gl_OPENPTY): New macros.
* lib/pty.in.h (forkpty, openpty): Honor new witnesses.
* NEWS: Mention the split.
* MODULES.html.sh (Misc): Document the modules.
* doc/glibc-functions/forkpty.texi (forkpty): Likewise.
* doc/glibc-functions/openpty.texi (openpty): Likewise.

Signed-off-by: Eric Blake <eblake@redhat.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/modules/openpty b/modules/openpty
new file mode 100644
index 0000000000..68e00db4a6
--- /dev/null
+++ b/modules/openpty
@@ -0,0 +1,26 @@
+Description:
+Provide the openpty() function.
+
+Files:
+m4/pty.m4
+
+Depends-on:
+pty
+
+configure.ac:
+gl_OPENPTY
+gl_PTY_MODULE_INDICATOR([openpty])
+
+Makefile.am:
+
+Include:
+<pty.h>
+
+Link:
+$(PTY_LIB)
+
+License:
+LGPL
+
+Maintainer:
+Simon Josefsson