[Libgomp, Fortran] Fix canadian cross build

[Yvan Roux]

On 3 July 2017 at 11:21, Yvan Roux <yvan.roux@linaro.org> wrote:
> On 23 June 2017 at 15:44, Yvan Roux <yvan.roux@linaro.org> wrote:
>> Hello,
>>
>> Fortran parts of libgomp (omp_lib.mod, openacc.mod, etc...) are
>> missing in a canadian cross build, at least when target gfortran
>> compiler comes from PATH and not from GFORTRAN_FOR_TARGET.
>>
>> Back in 2010, executability test of GFORTRAN was added to fix libgomp
>> build on cygwin, but when the executable doesn't contain the path,
>> "test -x" fails and part of the library are not built.
>>
>> This patch fixes the issue by using M4 macro AC_PATH_PROG (which
>> returns the absolute name) instead of AC_CHECK_PROG in the function
>> defined in config/acx.m4: NCN_STRICT_CHECK_TARGET_TOOLS.  I renamed it
>> into NCN_STRICT_PATH_TARGET_TOOLS to keep the semantic used in M4.
>>
>> Tested by building cross and candian cross toolchain (host:
>> i686-w64-mingw32) for arm-linux-gnueabihf with issue and with a
>> complete libgomp.
>>
>> ok for trunk ?
>
> ping?

ping?

>
>> Thanks
>> Yvan
>>
>> config/ChangeLog
>> 2017-06-23  Yvan Roux  <yvan.roux@linaro.org>
>>
>>         * acx.m4 (NCN_STRICT_CHECK_TARGET_TOOLS): Renamed to ...
>>         (NCN_STRICT_PATH_TARGET_TOOLS): ... this.  It reflects the replacement
>>         of AC_CHECK_PROG by AC_PATH_PROG to get the absolute name of the
>>         program.
>>         (ACX_CHECK_INSTALLED_TARGET_TOOL): Use renamed function.
>>
>> ChangeLog
>> 2017-06-23  Yvan Roux  <yvan.roux@linaro.org>
>>
>>         * configure.ac: Use NCN_STRICT_PATH_TARGET_TOOLS instead of
>>         NCN_STRICT_CHECK_TARGET_TOOLS.
>>         * configure: Regenerate.