Merge from mainline.

[gnu-emacs] / src / s / gnu-linux.h

diff --git a/src/s/gnu-linux.h b/src/s/gnu-linux.h
index 7501cd602f384280697d55ad5a2b97b5c75e27fc..0c198de26d8844ab441d56adcafdb65388aa4ad8 100644 (file)
--- a/src/s/gnu-linux.h
+++ b/src/s/gnu-linux.h
@@ -1,6 +1,6 @@
 /* This file is the configuration file for Linux-based GNU systems
    Copyright (C) 1985, 1986, 1992, 1994, 1996, 1999, 2001, 2002, 2003, 2004,
-                 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
+                 2005, 2006, 2007, 2008, 2009, 2010  Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -105,13 +105,8 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define BSTRING
 
-/* subprocesses should be defined if you want to
-   have code for asynchronous subprocesses
-   (as used in M-x compile and M-x shell).
-   This is generally OS dependent, and not supported
-   under most USG systems. */
-
-#define subprocesses
+/* This is used in list_system_processes.  */
+#define HAVE_PROCFS 1
 
 /* define MAIL_USE_FLOCK if the mailer uses flock
    to interlock access to /usr/spool/mail/$USER.
@@ -159,11 +154,15 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* new C libio names */
 #define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
   ((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)
-#else /* !_IO_STDIO_H */
+#elif defined (__UCLIBC__)
+/* using the uClibc library */
+#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
+  ((FILE)->__bufpos - (FILE)->__bufstart)
+#else /* !_IO_STDIO_H && ! __UCLIBC__ */
 /* old C++ iostream names */
 #define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
   ((FILE)->_pptr - (FILE)->_pbase)
-#endif /* !_IO_STDIO_H */
+#endif /* !_IO_STDIO_H && ! __UCLIBC__ */
 #endif /* emacs */
 
 /* Ask GCC where to find libgcc.a.  */
@@ -208,9 +207,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define C_DEBUG_SWITCH
 #endif
 
-/* alane@wozzle.linet.org says that -lipc is not a separate library,
-   since libc-4.4.1.  So -lipc was deleted.  */
-#define LIBS_SYSTEM
 /* _BSD_SOURCE is redundant, at least in glibc2, since we define
    _GNU_SOURCE.  Left in in case it's relevant to libc5 systems and
    anyone's still using Emacs on those.  --fx 2002-12-14  */
@@ -235,7 +231,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Use BSD process groups, but use setpgid() instead of setpgrp() to
    actually set a process group. */
-
+/* Interesting: only GNU/Linux defines this,  but the BSDs do not... */
 #define BSD_PGRPS
 
 #define NARROWPROTO 1
@@ -259,7 +255,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
     || defined __alpha__ || defined __mips__ || defined __s390__ \
     || defined __arm__ || defined __powerpc__ || defined __amd64__ \
-    || defined __ia64__
+    || defined __ia64__ || defined __sh__
 #define GC_SETJMP_WORKS 1
 #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
 #ifdef __mc68000__