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error_prints: fix potential program_invocation_name type conflict

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uClibc-ng declares program_invocation_name as const.
This causes the build failure below:

error_prints.c:40:14: error: conflicting types for ‘program_invocation_name’
 extern char *program_invocation_name;
              ^~~~~~~~~~~~~~~~~~~~~~~
In file included from error_prints.c:32:0:
.../output/host/x86_64-buildroot-linux-uclibc/sysroot/usr/include/errno.h:54:20: note: previous declaration of ‘program_invocation_name’ was here
 extern const char *program_invocation_name, *program_invocation_short_name;
                    ^~~~~~~~~~~~~~~~~~~~~~~

* error_prints.c (program_invocation_name): Declare only in case
of [!HAVE_PROGRAM_INVOCATION_NAME].
This commit is contained in:
Baruch Siach 2017-09-08 12:12:57 +03:00 committed by Dmitry V. Levin
parent 155fa1293b
commit d45f27147f
1 changed files with 2 additions and 0 deletions
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2
error_prints.c
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@ -37,7 +37,9 @@
#include "error_prints.h"
#ifndef HAVE_PROGRAM_INVOCATION_NAME
extern char *program_invocation_name;
#endif
static void
verror_msg(int err_no, const char *fmt, va_list p)