Re: [PATCH 07/14] Fix BASIC_LDFLAGS and COMPAT_CFLAGS for 64bit MinGW-w64

From

Marat Radchenko <marat@slonopotamus.org>

Date

Oct 14, 2014, 07:08 UTC

Message-ID

<20141014070822.GA15460@seldon>

In-Reply-To

<alpine.DEB.1.00.1410092115100.990@s15462909.onlinehome-server.info>

On Thu, Oct 09, 2014 at 09:22:19PM +0200, Johannes Schindelin wrote:

> Hi,
> 
> On Wed, 8 Oct 2014, Marat Radchenko wrote:
> 
> > +CC_MACH := $(shell sh -c '$(CC) -dumpmachine 2>/dev/null || echo not')
> 
> There is a rather huge problem with that. The latest mingw-w64 release,
> 4.9.1, does not do what you expect here: while '.../mingw32/bin/gcc -m32
> -o 32.exe test.c' and '.../mingw32/bin/gcc -m64 -o 64.exe test.c' work
> fine, producing i686 and x86_64 executables respectively,
> '.../mingw32/bin/gcc -dumpmachine' prints i686-w64-mingw32 *always*, even
> when specifying the -m64 option.
> 
> So unfortunately, the test introduced by this patch (intended to figure
> out whether the build targets i686, and skip a compiler and a linker
> option otherwise) is incorrect.

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52096#c1

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