Re: Problem with configure when trying to build gcc 5.3

From: Keith Marshall <[email protected]>
Sent: Sunday, January 1, 2017 4:57 PM

>On 01/01/17 22:15, David Gressett wrote:
>> I found a problem; it contained --build=x86_64-pc-linux-gnu

>- From whence is it picking that up?  For me, that comes from my
>$HOME/.mingw-pkgrc; it should not be defined otherwise.

>> instead of the expected -build=mingw32

>Why is this expected?  If your $build == $host, (as would be the
>norm for a native build), your configure line should (ideally)
>not specify either --build or --host.

>> I have a copy of .mingw-pkgrc in both my $HOME directory and
>> the gcc build directory.

>Well, that's just plain wrong; if you need it at all, (which you
>may not, unless you have a burning desire to customize something),
>then it belongs in $HOME, and nowhere else.

>> It appears that mingw-pkg is behaving badly in msys on my
>> Windows 10 computer.  My next step is to avoid mingw-pkg and
>> do all the patching and configuration manually.

>Well, okay as an interim measure, but we really need to debug this.
>Did you run 'mingw-pkg patch'?  In the source or the build tree?
>If so, what was its (console) output?

I ran it as you specified in you message in the MinGW list:
$ cd $HOME/build/gcc-5.3.0-mingw32
$ mingw-pkg SRCDIR=../../src/gcc-5.3.0 patch

For my next attempt, I removed both copies of 
.mingw-pkgrc., deleted all the remains of the previous
attempt from my build directory and did the patch
and configure steps again.

This time, I used tee to save the console display and
stayed to watch the patch step. 

$ mingw-pkg SRCDIR=../../src/gcc-5.3.0 patch | tee ../mingw-pkg-patch.log

the console showed this:

>>> apply patches


>>> done.

It completed so quickly that it is obvious that it really did no patches,
rather than suppressing or redirecting any console output.

I then did the configure:
$ mingw-pkg SRCDIR=../../src/gcc-5.3.0 configure | tee ../mingw-pkg-configure.log

The configure step produced exactly the same results as my previous
configure, even though there was no .mingw-pkgrc:  The console display
still announced that it would build java but not ada and the configure
command line still contained  --build=x86_64-pc-linux-gnu.

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