[src/trunk]: src/usr.bin/rump_allserver On glibc systems, issue a warning if ...

[pooka <pooka%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/16f5f1d694bd
branches:  trunk
changeset: 794673:16f5f1d694bd
user:      pooka <pooka%NetBSD.org@localhost>
date:      Fri Mar 21 16:26:30 2014 +0000

description:
On glibc systems, issue a warning if LD_DYNAMIC_WEAK is not

diffstat:

 usr.bin/rump_allserver/rump_allserver.c |  12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)

diffs (33 lines):

diff -r a0d1af7c6354 -r 16f5f1d694bd usr.bin/rump_allserver/rump_allserver.c
--- a/usr.bin/rump_allserver/rump_allserver.c   Fri Mar 21 16:03:35 2014 +0000
+++ b/usr.bin/rump_allserver/rump_allserver.c   Fri Mar 21 16:26:30 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: rump_allserver.c,v 1.35 2014/01/16 02:20:50 pooka Exp $        */
+/*     $NetBSD: rump_allserver.c,v 1.36 2014/03/21 16:26:30 pooka Exp $        */
 
 /*-
  * Copyright (c) 2010, 2011 Antti Kantee.  All Rights Reserved.
@@ -28,7 +28,7 @@
 #include <rump/rumpuser_port.h>
 
 #ifndef lint
-__RCSID("$NetBSD: rump_allserver.c,v 1.35 2014/01/16 02:20:50 pooka Exp $");
+__RCSID("$NetBSD: rump_allserver.c,v 1.36 2014/03/21 16:26:30 pooka Exp $");
 #endif /* !lint */
 
 #include <sys/types.h>
@@ -151,6 +151,14 @@
        unsigned nmods = 0, curmod = 0, nlibs = 0, curlib = 0, libidx;
        unsigned liblast = -1; /* XXXgcc */
 
+#ifdef __GLIBC__
+       char *p_weak;
+
+       if ((p_weak = getenv("LD_DYNAMIC_WEAK")) == NULL || *p_weak != '1')
+               fprintf(stderr, "WARNING: LD_DYNAMIC_WEAK is not set to "
+                   "\"1\" in the environment\n");
+#endif
+
 #ifdef PLATFORM_HAS_SETGETPROGNAME
        setprogname(argv[0]);
 #endif