Remove support for old GNU/Linux using libc version 5.

* m/alpha.h (LINUX_SBRK_BUG): Remove definition.
* emacs.c (main): Remove code depending on LINUX_SBRK_BUG.

3 files changed, 4 insertions, 10 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 8b652226c84..2eaefe41fac 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,9 @@
 2010-03-20  Dan Nicolaescu  <dann@ics.uci.edu>
 
+        Remove support for old GNU/Linux using libc version 5.
+        * m/alpha.h (LINUX_SBRK_BUG): Remove definition.
+        * emacs.c (main): Remove code depending on LINUX_SBRK_BUG.
+
         Consolidate redundant definitions in s/bsd-common.h.
         * s/bsd-common.h (BSD4_2, TABDLY, TAB3, HAVE_TERMIOS, NO_TERMIO)
         (LIBS_DEBUG, SYSV_SYSTEM_DIR, UNEXEC, NARROWPROTO, BSD_PGRPS)
diff --git a/src/emacs.c b/src/emacs.c
index dbaae9b040b..60aa14e2b78 100644
--- a/src/emacs.c
+++ b/src/emacs.c
@@ -790,11 +790,6 @@ main (int argc, char **argv)
       heap_bss_diff = (char *)my_heap_start - max (my_endbss, my_endbss_static);
     }
 
-#ifdef LINUX_SBRK_BUG
-  /* This is only used GNU/LINUX running on alpha when using libc5 */
-  __sbrk (1);
-#endif
-
 #ifdef RUN_TIME_REMAP
   if (initialized)
     run_time_remap (argv[0]);
diff --git a/src/m/alpha.h b/src/m/alpha.h
index 5abf8bba726..065a0dd7d71 100644
--- a/src/m/alpha.h
+++ b/src/m/alpha.h
@@ -116,11 +116,6 @@ NOTE-END
 
 #endif /* __ELF__ */
 
-#if defined (GNU_LINUX) && __GNU_LIBRARY__ - 0 < 6
-/* This controls a conditional in main.  */
-#define LINUX_SBRK_BUG
-#endif
-
 /* On the Alpha it's best to avoid including TERMIO since struct
    termio and struct termios are mutually incompatible.  */
 #define NO_TERMIO