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Date:	Wed, 11 Jul 2012 22:28:13 +0200
From:	Thorolf Schulte <thorolf DOT schulte AT googlemail DOT com>
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To:	cygwin AT cygwin DOT com
Subject:	Re: 1.7.14: Compiling GCC fails (Permission denied on mv)
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Am 11.07.2012 21:59, schrieb Ryan Johnson:
> On 11/07/2012 8:39 AM, Thorolf Schulte wrote:
>> Hi,
>>
>> this is my first mail on the mailing list, so please excuse any mistakes.
>>
>> I am trying to compile GCC 4.6.1 on my Cygwin 1.7.14 following this:
>> http://cygwin.wikia.com/wiki/How_to_install_a_newer_version_of_GCC
>>
>> I downloaded and installed every package needed (GMP, MPFR,
>> Multiprecision).
>> Then I went into my build folder and typed
>> ../gcc-4.6.1/configure --enable-languages=c,c++ --enable-libgomp
>> --with-multilib-list=m64,m32 --prefix $HOME/gcc64pls --program-suffix
>> -64pls
>>
>> (I need OMP and 64 bit support as my programs need more than 2 gb RAM!)
>> That worked fine, but just for completeness, I attached the output as
>> "confout.txt".
>>
>> Now I try to build GCC with "make -j4". Here the problem occurs: The
>> data cannot be moved from "gcc" to "stage1-gcc" (Permission denied).
>> After this error I checked the build folder and saw that the
>> corresponding folder is not there. Then I tried to manually add all
>> folders necessary, but it seems that they get deleted during build
>> progress (saw some rm -r in Makefile). So I get exactly the same
>> problem after manually adding all folders.
>> I wanted to attach the full output as well, but the file size with
>> >800kb seemed to be too big. I just attached the last 10-20%, but of
>> course I can send the other output as well.
>>
>> Additionally, I attached my version information in "cygcheck.txt".
>>
>> Currently, I just dont know what to do. I tried to find some help via
>> Google or the archive, but it seems that I am the only one facing this
>> exact problem.
>>
>> Any (general) advice? Thanks!
> Ignore the wikia article. Third party "advice" on how to use cygwin is
> usually outdated and/or flat out wrong. The multilib thing is especially
> suspicious, given that cygwin is *not* 64-bit capable.
>
> I'd follow the directions at gcc's site, or -- even better -- invoke
> `/usr/bin/gcc -v' and copy its known-good configure line. I've compiled
> many versions of gcc with many versions of cygwin that way without
> difficulty.
>
> $ uname -a
> CYGWIN_NT-6.1-WOW64 ryan-cms-utsc 1.7.14(0.260/5/3) 2012-04-25 09:41
> i686 Cygwin
>
> $ gcc -v
> Using built-in specs.
> COLLECT_GCC=gcc
> COLLECT_LTO_WRAPPER=/home/Ryan/apps/gcc-4.7/libexec/gcc/i686-pc-cygwin/4.7.0/lto-wrapper.exe
>
> Target: i686-pc-cygwin
> Configured with: ../gcc-4.7.0-src/configure
> --prefix=/home/Ryan/apps/gcc-4.7 --enable-bootstrap
> --enable-version-specific-runtime-libs --enable-static --enable-shared
> --enable-shared-libgcc --disable-__cxa_atexit --with-dwarf2
> --disable-sjlj-exceptions --enable-languages=c,c++,lto --enable-lto
> Thread model: single
> gcc version 4.7.0 (GCC)
>
> Ryan
>
>
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>



Hey,

okay, if Cygwin isn't able to perform 64-bit operations, then I can keep 
my old GCC, but just for curiosity I will try to compile it without 
multilib. I thought that it is 64-bit capable if one only compiles GCC 
on its own. Thank you for this information!

Kind Regards,
Thorolf

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