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inline problems on RHEL 5.8

From: Eric Blake
Subject: inline problems on RHEL 5.8
Date: Mon, 31 Dec 2012 09:57:54 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0

How do I go about debugging and fixing these errors?  I suspect they are
more fallout from Paul's efforts to revamp how 'inline' works; these
were reproduced by temporarily bumping m4 to the latest gnulib.git and
compiling on a RHEL 5.8 machine (kernel 2.6.18, glibc 2.5, gcc 4.6.4):

gcc -std=gnu99   -g -O2   -o m4 m4.o builtin.o debug.o eval.o format.o
freeze.o input.o macro.o output.o path.o symtab.o ../lib/libm4.a
/usr/local/lib/libsigsegv.a -lc
builtin.o: In function `stpncpy':
/usr/include/bits/string3.h:156: multiple definition of `stpncpy'
m4.o:/usr/include/bits/string3.h:156: first defined here

It's choking on this, and any other function, where older glibc uses the
following style of declaration:

extern __always_inline char *
__NTH (stpncpy (char *__dest, __const char *__src, size_t __n))
... }

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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