fpm displays GNU' ar Copyright notice

fpm git~master started displaying GNU' ar Copyright notice on build, run and install subcommands.

Example output:

C:\Temp>fpm new test222
 + mkdir test222
 + cd test222
 + mkdir test222\src
 + mkdir test222\app
 + mkdir test222\test
 + git init test222
Initialized empty Git repository in C:/Temp/test222/.git/

C:\Temp>cd test222

C:\Temp\test222>fpm build
 + mkdir build\dependencies
GNU ar (GNU Binutils) 2.35.2
Copyright (C) 2020 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) any later version.
This program has absolutely no warranty.
 + mkdir build\gfortran_2A42023B310FA28D\test222  … 

C:\Temp\test222>fpm run
GNU ar (GNU Binutils) 2.35.2
Copyright (C) 2020 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) any later version.
This program has absolutely no warranty.
 Hello, test222!

[LKedward]

Thanks for reporting; that's a little annoying. Looks like this execute command line needs to be piped to /dev/null and the Windows equivalent.

fpm/src/fpm_environment.f90

Line 196 in a9adf2b

call execute_command_line("ar --version", exitstat=estat)

I think the archiver resolution should be part of a more general toolchain profile. For example, if the compiler is gfortran, then fpm can assume the archiver is ar, the assembler is as, the C++ compiler is g++, etc.

[isuruf]

For example, if the compiler is gfortran, then fpm can assume the archiver is ar, the assembler is as, the C++ compiler is g++, etc.

fpm should first look at AR env variable and if not set ask gfortran what the archiver name is gfortran -print-prog-name=ar should give the archiver name.

cc @certik