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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
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