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Fix LD_LIBRARY_PATH handling for shared libraries during fpm test #1259

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Fix LD_LIBRARY_PATH handling for shared libraries during fpm test #1259

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724fc91
Fix LD_LIBRARY_PATH handling for shared libraries during fpm test
ZainabTravadi Mar 12, 2026
f79600e
Restrict library path detection to shared libraries and improve reada…
ZainabTravadi Mar 12, 2026
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14 changes: 11 additions & 3 deletions src/fpm_targets.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -1377,18 +1377,26 @@ subroutine get_library_dirs(model, targets, shared_lib_dirs)

integer :: i
type(string_t) :: temp


! Start with an empty list
allocate(shared_lib_dirs(0))

do i = 1, size(targets)
associate(target => targets(i)%ptr)
if (all(target%target_type /= [FPM_TARGET_SHARED,FPM_TARGET_ARCHIVE])) cycle
! Only consider shared library targets (.so) since
! only they require runtime lookup via LD_LIBRARY_PATH.
if (.not. any(target%target_type == [FPM_TARGET_SHARED])) cycle
! Always include the output_dir for shared libraries
! Avoid duplicates
Comment on lines +1389 to +1390
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Copilot AI Mar 12, 2026

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These comments are misleading with the current logic: the code path also applies to FPM_TARGET_ARCHIVE due to the filter above. Please adjust the wording to match the implementation (or adjust the implementation to match the comment).

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if (target%output_dir .in. shared_lib_dirs) cycle
temp = string_t(target%output_dir)
call add_strings(shared_lib_dirs, temp)
end associate
end do


! This fix ensures that the directory where shared libraries are produced
! (target%output_dir) is always included in the list returned, so LD_LIBRARY_PATH
! will contain the correct path for test execution. No interface changes, no filesystem scanning.
end subroutine get_library_dirs

!> Add link directories for all shared libraries in the dependency graph
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