[Flang-dev] Flang honoring-DCMAKE_Fortran_COMPILER=${PATH}

blubee blubeeme gurenchan at gmail.com
Thu Jul 12 19:15:45 EDT 2018


I have some patches that fixes all these issues, how can I submit patches?

As far as license concerned I provide them whatever license the flang team
needs.

Best,
Owen

On Thu, Jul 12, 2018, 21:32 Morin, Monique Marlene <morin at lanl.gov> wrote:

> We have had similar trouble with cmake flags not being honored at certain
> points in the build from source process for Flang -- this was not always
> the case a couple of months ago.
>
>
> Our solution/work-around has been to manually set/change environment
> variables throughout install steps.
>
>
> It would be great if this could be fixed and we could provide feedback
> about install as well.
>
> Thanks!
>
> ------------------------------
> *From:* flang-dev <flang-dev-bounces at lists.flang-compiler.org> on behalf
> of blubee blubeeme <gurenchan at gmail.com>
> *Sent:* Wednesday, July 11, 2018 11:24 PM
> *To:* flang-dev at lists.flang-compiler.org
> *Subject:* [Flang-dev] Flang honoring-DCMAKE_Fortran_COMPILER=${PATH}
>
> Hi
>
> I am trying to build flang the build fails with this error:
> [ 25%] Preprocessing ieee_arithmetic.F95
> cd /wrkdirs/usr/ports/devel/flang-flang/work/.build/runtime/flang &&
> /usr/bin/cc -E
> /wrkdirs/usr/ports/devel/flang-flang/work/flang-45d7aeb/runtime/flang/ieee_arithmetic.F95
> -DDESC_I8 > I8_sources/ieee_arithmetic.F95
> cc: error: unable to execute command: Executable "gcc" doesn't exist!
> *** Error code 1
>
> slack user: https://flang-compiler.slack.com/team/U5CNV08UB suggested
> that I replace cc with flang -E
>
> After making those changes to the generated cmake files located:
> .build/runtime/flang/CMakeFiles/flang_shared.dir/build.make
>
> and replacing all calls to cc with flang -E as below
>
> --------------------------------------------------------------------------------------
> runtime/flang/I8_sources/ieee_arithmetic.F95:
>         @$(CMAKE_COMMAND) -E cmake_echo_color --switch=$(COLOR)
> --progress-dir=/wrkdirs/usr/ports/devel/flang-flang/work/.build/CMakeFiles
> --progress-num=$(CMAKE_PROGRESS_1) "Preprocessing ieee_arithmetic.F95"
>         cd /wrkdirs/usr/ports/devel/flang-flang/work/.build/runtime/flang
> && /usr/local/flang/bin/flang -E
> /wrkdirs/usr/ports/devel/flang-flang/work/flang-45d7aeb/runtime/flang/ieee_arithmetic.F95
> -DDESC_I8 > I8_sources/ieee_arithmetic.F95
>
> runtime/flang/I8_sources/ieee_exceptions.F95:
>         @$(CMAKE_COMMAND) -E cmake_echo_color --switch=$(COLOR)
> --progress-dir=/wrkdirs/usr/ports/devel/flang-flang/work/.build/CMakeFiles
> --progress-num=$(CMAKE_PROGRESS_2) "Preprocessing ieee_exceptions.F95"
>         cd /wrkdirs/usr/ports/devel/flang-flang/work/.build/runtime/flang
> && /usr/local/flang/bin/flang -E
> /wrkdirs/usr/ports/devel/flang-flang/work/flang-45d7aeb/runtime/flang/ieee_exceptions.F95
> -DDESC_I8 > I8_sources/ieee_exceptions.F95
>
> runtime/flang/CMakeFiles/flang_shared.dir/abort3f.c.o:
> runtime/flang/CMakeFiles/flang_shared.dir/flags.make
> runtime/flang/CMakeFiles/flang_shared.dir/abort3f.c.o:
> /wrkdirs/usr/ports/devel/flang-flang/work/flang-45d7aeb/runtime/flang/abort3f.c
>         @$(CMAKE_COMMAND) -E cmake_echo_color --switch=$(COLOR)
> --progress-dir=/wrkdirs/usr/ports/devel/flang-flang/work/.build/CMakeFiles
> --progress-num=$(CMAKE_PROGRESS_3) "Building C object
> runtime/flang/CMakeFiles/flang_shared.dir/abort3f.c.o"
>         cd /wrkdirs/usr/ports/devel/flang-flang/work/.build/runtime/flang
> && /usr/local/flang/bin/flang $(C_DEFINES) -DHAVE_LONG_LONG_INT
> -DINT32PTR64 -DKANJI -DPGF90 -DTM_I8 $(C_INCLUDES) $(C_FLAGS) -o
> CMakeFiles/flang_shared.dir/abort3f.c.o   -c
> /wrkdirs/usr/ports/devel/flang-flang/work/flan
> g-45d7aeb/runtime/flang/abort3f.c
>
> runtime/flang/CMakeFiles/flang_shared.dir/abort3f.c.i: cmake_force
>         @echo "Preprocessing C source to
> CMakeFiles/flang_shared.dir/abort3f.c.i"
>         cd /wrkdirs/usr/ports/devel/flang-flang/work/.build/runtime/flang
> && /usr/local/flang/bin/flang $(C_DEFINES) -DHAVE_LONG_LONG_INT
> -DINT32PTR64 -DKANJI -DPGF90 -DTM_I8 $(C_INCLUDES) $(C_FLAGS) -E
> /wrkdirs/usr/ports/devel/flang-flang/work/flang-45d7aeb/runtime/flang/abort3f.c
> > CMakeFile
> s/flang_shared.dir/abort3f.c.i
>
> runtime/flang/CMakeFiles/flang_shared.dir/abort3f.c.s: cmake_force
>         @echo "Compiling C source to assembly
> CMakeFiles/flang_shared.dir/abort3f.c.s"
>         cd /wrkdirs/usr/ports/devel/flang-flang/work/.build/runtime/flang
> && /usr/local/flang/bin/flang $(C_DEFINES) -DHAVE_LONG_LONG_INT
> -DINT32PTR64 -DKANJI -DPGF90 -DTM_I8 $(C_INCLUDES) $(C_FLAGS) -S
> /wrkdirs/usr/ports/devel/flang-flang/work/flang-45d7aeb/runtime/flang/abort3f.c
> -o CMakeFil
> es/flang_shared.dir/abort3f.c.s
>
> --------------------------------------------------------------------------------------
>
> The project compiles.
>
> My questions is it possible to have the CMake properly generate the files
> so that I do not have to manually edit them during the middle of a build?
>
> Are there any patches that I could apply to get this to build properly, I
> don't mind testing it before it's upstreamed.
>
> Best,
> Owen
>
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