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package/tmux: fix build

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The bump to the latest libevent version exposed a latent bug in tmux,
which tries to re-define a variable exposed by the C library.

This breaks with uClibc-ng which defines it const char*, while glibc and
musl define it as non-const.

Fixes:
    http://autobuild.buildroot.org/results/31d/31d37c95b40d297b90a6181ec79c42ee1e2e5090/
    http://autobuild.buildroot.org/results/ccc/ccc9d2e995ba1eaf19f6b325b0af5ebeb8066e7f/
    http://autobuild.buildroot.org/results/8a2/8a28d43bd0c079c1b49b61b0c6ef7de79eda0549/

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Yann E. MORIN 2017-02-05 17:21:26 +01:00 committed by Thomas Petazzoni
parent c9ebd70fb1
commit 7d987f16ed
1 changed files with 42 additions and 0 deletions
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42
package/tmux/0001-compat-don-t-re-define-program_invocation_short_name.patch Normal file
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@ -0,0 +1,42 @@
From 9b18a98614a9f201b0883c2b15e7c7bde0aa0ff2 Mon Sep 17 00:00:00 2001
From: "Yann E. MORIN" <yann.morin.1998@free.fr>
Date: Sun, 5 Feb 2017 17:12:00 +0100
Subject: [PATCH] compat: don't re-define program_invocation_short_name
program_invocation_short_name is defined in errno.h, and its definition
can differ between the various C libraries: glibc defines it as:
extern char *program_invocation_short_name;
while uClibc defines it as:
extern const char *program_invocation_short_name;
So there is not simple solution to know the prototype.
But since it is defined in errno.h, there is no reason to try and define
it ourselves; let's just trust what the header provides.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
compat/getprogname.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/compat/getprogname.c b/compat/getprogname.c
index 80a496d..ad619fc 100644
--- a/compat/getprogname.c
+++ b/compat/getprogname.c
@@ -19,11 +19,10 @@
#include "compat.h"
#if defined(HAVE_PROGRAM_INVOCATION_SHORT_NAME)
+#include <errno.h>
const char *
getprogname(void)
{
- extern char *program_invocation_short_name;
-
return (program_invocation_short_name);
}
#elif defined(HAVE___PROGNAME)
--
2.7.4