Archiving several files into static library fails on linux if the project is within a long nested path - Githubissues

bfgroup / b2

B2 makes it easy to build C++ projects, everywhere.

https://www.bfgroup.xyz/b2/

Boost Software License 1.0

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Archiving several files into static library fails on linux if the project is within a long nested path #143

Closed psandana closed 2 years ago

psandana commented 2 years ago

Environment and version details

Operating System+version: CentOS 7.8
Compiler+version: GCC 9
Shell: Csh

B2 Version: Output of b2 -v and b2 --version

B2 Version 4.6. OS=LINUX.
Copyright 1993-2002 Christopher Seiwald and Perforce Software, Inc.
Copyright 2001 David Turner.
Copyright 2001-2004 David Abrahams.
Copyright 2002-2019 Rene Rivera.
Copyright 2003-2015 Vladimir Prus.

DEFAULTS: jobs = 56

B2 4.6-git

Brief problem description

ar binary in linux cannot run when archiving multiple targets with long paths due the MAXLINE define limit.

Steps to reproduce the issue

Create a library to be linked statically on a long-nested path with multiple targets.

# long/nested/path/..../..../..../project
lib mylib
   :
      # several targets
   :
      <link>static
   ;

Actual behavior summary

Failure on linux, unless the project is relocated or the out folder is moved to a short path.

Expected behavior summary

ar command should work in unix. We recommend to double the size from 102400 to 204800

https://github.com/bfgroup/b2/blob/ddecd777bd39ff180d214193871a93ddb47c03ca/src/engine/jam.h#L454

psandana commented 2 years ago

Thanks for the fix!