[cmake-developers] [CMake 0015460]: PGI Fortran compiler does not recognise -fPIE

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
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http://www.cmake.org/Bug/view.php?id=15460 
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Reported By:                Tiago Quintino
Assigned To:                
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Project:                    CMake
Issue ID:                   15460
Category:                   CMake
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
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Date Submitted:             2015-03-19 11:02 EDT
Last Modified:              2015-03-19 11:02 EDT
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Summary:                    PGI Fortran compiler does not recognise -fPIE
Description: 
By selecting POSITION_INDEPENDENT_CODE the PGI compiler settings add
automatically the flag -fPIE. 
This flag does not exist for PGI Fortran Compiler. 
I have checked this with pgf77, pgf90 and pgfortran.

The only workaround I found is to set the flag: 

-DCMAKE_Fortran_FLAGS="-noswitcherror"

This turns off the check for flag validity in the compiler, but obviously is not
a long-term solution, since now any test to compiler flags will pass
irrespectively if the flag is recognised or not.

The solution I think is changing Modules/Platform/Linux-PGI.cmake to:

set(CMAKE_${lang}_COMPILE_OPTIONS_PIE "")

Note that the flag -fPIE also does not exist for PGI C and C++ compilers.




Steps to Reproduce: 
Build the attached CMakeLists.txt project with 

cmake -DCMAKE_Fortran_COMPILER=pgf90 ..



Additional Information: 
I am using CMake 3.1.2 and PGI Fortran 14.4.
The man page of compiler does not reference this flag whatsoever.
This is the output I get:

-- The C compiler identification is GNU 4.8.1
-- Check for working C compiler: /usr/bin/gcc
-- Check for working C compiler: /usr/bin/gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- The Fortran compiler identification is PGI
-- Check for working Fortran compiler: /usr/local/apps/pgi/14.4/bin/pgf90
-- Check for working Fortran compiler: /usr/local/apps/pgi/14.4/bin/pgf90  --
broken
CMake Error at
/usr/local/apps/cmake/3.1.2/share/cmake-3.1/Modules/CMakeTestFortranCompiler.cmake:54
(message):
  The Fortran compiler "/usr/local/apps/pgi/14.4/bin/pgf90" is not able to
  compile a simple test program.

  It fails with the following output:

   Change Dir: /home/ma/matq/git/cmake-test/pgi-pie/build/CMakeFiles/CMakeTmp

  

  Run Build Command:"/usr/bin/gmake" "cmTryCompileExec951442437/fast"

  gmake: Warning: File `Makefile' has modification time 1.9 s in the future

  /usr/bin/gmake -f CMakeFiles/cmTryCompileExec951442437.dir/build.make
  CMakeFiles/cmTryCompileExec951442437.dir/build

  gmake[1]: Entering directory
  `/home/ma/matq/git/cmake-test/pgi-pie/build/CMakeFiles/CMakeTmp'

  gmake[1]: Warning: File
  `CMakeFiles/cmTryCompileExec951442437.dir/flags.make' has modification time
  1.9 s in the future

  /usr/local/apps/cmake/3.1.2/bin/cmake -E cmake_progress_report
  /home/ma/matq/git/cmake-test/pgi-pie/build/CMakeFiles/CMakeTmp/CMakeFiles 1

  Building Fortran object
  CMakeFiles/cmTryCompileExec951442437.dir/testFortranCompiler.f.o

  /usr/local/apps/pgi/14.4/bin/pgf90 -Mpreprocess -Kieee -fPIE -c
 
/home/ma/matq/git/cmake-test/pgi-pie/build/CMakeFiles/CMakeTmp/testFortranCompiler.f
  -o CMakeFiles/cmTryCompileExec951442437.dir/testFortranCompiler.f.o

  pgf90-Error-Unknown switch: -fPIE

  gmake[1]: ***
  [CMakeFiles/cmTryCompileExec951442437.dir/testFortranCompiler.f.o] Error 1

  gmake[1]: Leaving directory
  `/home/ma/matq/git/cmake-test/pgi-pie/build/CMakeFiles/CMakeTmp'

  gmake: *** [cmTryCompileExec951442437/fast] Error 2

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:7 (enable_language)


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Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2015-03-19 11:02 Tiago Quintino New Issue                                    
2015-03-19 11:02 Tiago Quintino File Added: CMakeLists.txt                    
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