llnl / llnl/mpiP

VPATH buils fail with v3.5

Open
#44 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
C
Stars
112
Forks
35
PR merge metrics
No merged PRs in 30d

Description

Building mpiP in-tree works fine. But out-of-tree / VPATH builds fail.

To reproduce:

$> # extract tarball and cd into mpiP directory
$> mkdir mybuild
$> cd mybuild
$> ../configure 
$> make
../arch/arch.h:17:10: fatal error: arch/arch_x86_64.h: No such file or directory

It looks like the include path does not contain $(srcdir).

In fact, calling make as

$> make CPATH=$CPATH:../

serves as a workaround.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the out-of-tree build from a separate mybuild directory using ../configure followed by make. Start with arch/arch.h and the configure-generated build include paths, checking why arch/arch_x86_64.h is not found without CPATH. Done means the documented VPATH build succeeds without the CPATH workaround.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
build-system
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.