Support nested build directories in sibling search#6961
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hakonhagland wants to merge 1 commit intoOPM:masterfrom
Open
Support nested build directories in sibling search#6961hakonhagland wants to merge 1 commit intoOPM:masterfrom
hakonhagland wants to merge 1 commit intoOPM:masterfrom
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The inline sibling search logic used get_filename_component(NAME) to extract the build directory name, which only returned the last path component. This broke sibling discovery for nested build directories like "builds/debug" — the search would look for "../opm-common/debug" instead of "../opm-common/builds/debug". Use file(RELATIVE_PATH) to compute the full relative path from PROJECT_SOURCE_DIR to PROJECT_BINARY_DIR, then apply that same relative path to the sibling module's source tree. This correctly handles build directories at any depth. The previous strategies (prefix-based naming and common build root) are kept as fallbacks for out-of-source builds. This is the inline copy of the logic in opm-common/cmake/Modules/OpmSiblingSearch.cmake, duplicated here because opm-common must be located before its cmake modules become available via find_package.
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See description in the companion PR in opm-common: OPM/opm-common#5091