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Re: libstdc++ gets configure error in cross builds
On Dec 2, 2010, at 3:55 PM, H.J. Lu wrote:
> On Thu, Dec 2, 2010 at 12:42 PM, Paul Koning <paul_koning@dell.com> wrote:
>>
>> On Dec 2, 2010, at 3:05 PM, Ian Lance Taylor wrote:
>>
>>> Paul Koning <paul_koning@Dell.com> writes:
>>>
>>>> On Dec 2, 2010, at 2:55 PM, Ian Lance Taylor wrote:
>>>>
>>>>> Paul Koning <paul_koning@dell.com> writes:
>>>>>
>>>>>> I'm trying to do a cross-build of gcc 4.5.1. It works fine until I
>>>>>> get to libstdc++v3, where configure blows up with a message saying
>>>>>> "Link tests are not allowed after GCC_NO_EXECUTABLES". This happens
>>>>>> on the "checking for shl_load" step (line 11221 in configure).
>>>>>>
>>>>>> I looked at configure.ac to see if there were any clues. I can't tell
>>>>>> which line in configure.ac produces the offending line in configure
>>>>>> (not enough autoconf skills). In an earlier gcc (3.3.3) there was a
>>>>>> similar issue, and in that case I worked around it by removing
>>>>>> "GLIBCPP_CHECK_COMPILER_VERSION" from the configure.in file. But that
>>>>>> line doesn't exist in configure.ac and attempts to find something
>>>>>> analogous didn't get me anywhere.
>>>>>
>>>>> GCC_NO_EXECUTABLES, in config/no-executables.m4, redefines
>>>>> AC_LINK_IFELSE to produce that error message.
>>>>
>>>> Thanks. But why does the released configure fail like this? Any idea how to fix this bug?
>>>
>>> You need to tell us precisely what you tried to do and precisely what
>>> happened.
>>>
>>> The TARGET/libstdc++-v3/config.log file may contain a clue.
>>
>> It's configured --target=mips64el-netbsdelf --enable-languages=c,c++, on an i686-pc-linux-gnu host.
>>
>
> Can you try sysroot with full mips64el-netbsdelf C library and header
> files?
I have newlib and a full set of headers.
paul