Re: Failure to bootstrap trunk with --enable-threads=posix on cygwin since r180767

[Dave Korn <dave.korn.cygwin@gmail.com>]

On 07/11/2011 18:39, Rainer Orth wrote:
> Christian Joensson <christian.joensson@ writes:
> 
>> xgcc: error: unrecognized command line option ‘-pthread’
> [...]
>> Note the --enable-threads=posix.
>>
>> Backing off to revision 180766 does not yield this problem, while
>> 180767 has the problem.
> 
> I erroneously moved the use of i386/t-mingw-pthread to the cygwin case.

  As I just discovered!

> The following patch should correct this.  Could you give it a try?

> 2011-11-07  Rainer Orth  <ro@
> 
> 	libgcc:
> 	* config.host (i[34567]86-*-cygwin*): Move i386/t-mingw-pthread ...
> 	(i[34567]86-*-mingw*): ... here.
> 	(x86_64-*-mingw*): ... here.

  That's not quite right (although it will probably work):

> @@ -605,6 +600,9 @@ i[34567]86-*-mingw*)
>  	  win32)
>  	    tmake_file="$tmake_file i386/t-gthr-win32"
>  	    ;;
> +	  posix)
> +	    tmake_file="i386/t-mingw-pthread $tmake_file"
> +	    ;;
>  	esac
>  	# This has to match the logic for DWARF2_UNWIND_INFO in gcc/config/i386/cygming.h
>  	if test x$enable_sjlj_exceptions = xyes; then
> @@ -626,6 +624,9 @@ x86_64-*-mingw*)
>  	  win32)
>  	    tmake_file="$tmake_file i386/t-gthr-win32"
>  	    ;;
> +	  posix)
> +	    tmake_file="i386/t-mingw-pthread $tmake_file"
> +	    ;;
>  	esac
>  	# This has to match the logic for DWARF2_UNWIND_INFO in gcc/config/i386/cygming.h
>  	if test x$enable_sjlj_exceptions = xyes; then

  Notice how in your additions, you prepend the t-mingw-pthread file to the
list in $tmake_file rather than append it as the existing code does.  Ordering
of t-* files in $tmake_file is significant as there may be overrides and files
should be listed from most generic to most target/os-specific, so please
adjust those two hunks to match the way it's already being done.

  OK with that change.

    cheers,
      DaveK