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package/iputils: patch ping to link against libm

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ping fails to compile with uClibc based toolchains with the error

undefined reference to `__finite'

Add a patch to link ping against libm to resolve the math library function
finite().

Note, this error is not seen with glibc based toolchains because finite
seems to be resolved in both libm and libc.

Fixes:
http://autobuild.buildroot.net/results/08f7386f75c881bc582b338824f8ccd509b2921e/
http://autobuild.buildroot.net/results/5aeef61fbd399dd78dc72b9e7cce978e6f1f58b4/

A pull request has been sent to fix this issue upstream, see
https://github.com/iputils/iputils/pull/42

Signed-off-by: Martin Bark <martin@barkynet.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Martin Bark 2016-02-15 13:00:06 +00:00 committed by Thomas Petazzoni
parent 0500c7c603
commit 7f41db8f9a
1 changed files with 29 additions and 0 deletions
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29
package/iputils/0001-ping-link-against-libm.patch Normal file
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@ -0,0 +1,29 @@
From 8d189e73e660a637ae3f5a604448103ea42e397d Mon Sep 17 00:00:00 2001
From: Martin Bark <martin@barkynet.com>
Date: Fri, 12 Feb 2016 16:52:19 +0000
Subject: [PATCH] ping: link against libm
This commit links ping against libm because ping.c calls the math library
function finite().
Signed-off-by: Martin Bark <martin@barkynet.com>
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index 8b37c42..fb80f6f 100644
--- a/Makefile
+++ b/Makefile
@@ -156,7 +156,7 @@ LIB_clockdiff = $(LIB_CAP)
DEF_ping_common = $(DEF_CAP) $(DEF_IDN)
DEF_ping6_common = $(DEF_CAP) $(DEF_IDN)
DEF_ping = $(DEF_CAP) $(DEF_IDN) $(DEF_WITHOUT_IFADDRS)
-LIB_ping = $(LIB_CAP) $(LIB_IDN) $(LIB_RESOLV)
+LIB_ping = $(LIB_CAP) $(LIB_IDN) $(LIB_RESOLV) -lm
ping: ping_common.o ping6_common.o
ping.o ping_common.o ping6_common.o: ping.h in6_flowlabel.h
--
2.7.0