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Re: test-string-c++.o:(.data+0x0): undefined reference to `rpl_memchr'


From: Simon Josefsson
Subject: Re: test-string-c++.o:(.data+0x0): undefined reference to `rpl_memchr'
Date: Fri, 23 Apr 2010 11:13:04 +0200
User-agent: Gnus/5.110011 (No Gnus v0.11) Emacs/23.1 (gnu/linux)

Bruno Haible <address@hidden> writes:

>> g++     -o test-string-c++.exe test-string-c++.o test-string-c++2.o 
>> ../gllib/libgnu.a  
>> test-string-c++.o:(.data+0x0): undefined reference to `rpl_memchr'
>
> Why is CXX="g++" being used when you are cross-compiling from linux to mingw??

Ah, that's the problem.

> Did you specify a CXX to configure?

No, just the commands shown in the first post.

> Or did configure find nothing usable because you haven't installed a
> 'i586-mingw32msvc-g++'?

It is installed, but configure.ac doesn't call AC_PROG_CXX so it never
checks for that tool.  Adding AC_PROG_CXX to gltests/configure.ac solves
the problem.  I see that ansi-c++-opt.m4 may be attempting to do setup a
C++ compiler, but it doesn't seem to work when cross-compiling.

/Simon




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