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CMake: improve logic for discovering Trellis.

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This commit is contained in:
whitequark 2020-07-01 20:32:52 +00:00
parent f6e30f22f4
commit 18bb70afca
1 changed files with 25 additions and 1 deletions
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26
ecp5/CMakeLists.txt
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@ -26,14 +26,38 @@ else()
message(STATUS "Trellis install prefix: ${TRELLIS_INSTALL_PREFIX}")
if(NOT TRELLIS_LIBDIR)
# The pytrellis library isn't a normal shared library, but rather a native Python library;
# it does not follow the normal platform conventions for shared libraries, so we can't just
# use find_library() here. Instead, we emulate the useful parts of the find_library() logic
# for use with find_path().
set(pytrellis_paths)
foreach(prefix_path ${CMAKE_PREFIX_PATH})
list(APPEND pytrellis_paths ${prefix_path}/lib)
if(CMAKE_LIBRARY_ARCHITECTURE)
list(APPEND pytrellis_paths ${prefix_path}/lib/${CMAKE_LIBRARY_ARCHITECTURE})
endif()
endforeach()
list(APPEND pytrellis_paths ${CMAKE_LIBRARY_PATH})
if(NOT NO_CMAKE_SYSTEM_PATH)
foreach(prefix_path ${CMAKE_SYSTEM_PREFIX_PATH})
list(APPEND pytrellis_paths ${prefix_path}/lib)
if(CMAKE_LIBRARY_ARCHITECTURE)
list(APPEND pytrellis_paths ${prefix_path}/lib/${CMAKE_LIBRARY_ARCHITECTURE})
endif()
endforeach()
list(APPEND pytrellis_paths ${CMAKE_SYSTEM_LIBRARY_PATH})
endif()
message(STATUS "Searching for pytrellis in: ${pytrellis_paths}")
if(WIN32)
set(pytrellis_lib pytrellis.pyd)
else()
set(pytrellis_lib pytrellis${CMAKE_SHARED_LIBRARY_SUFFIX})
endif()
find_path(TRELLIS_LIBDIR ${pytrellis_lib}
HINTS ${TRELLIS_INSTALL_PREFIX}/lib/${TRELLIS_PROGRAM_PREFIX}trellis
PATHS ${CMAKE_SYSTEM_LIBRARY_PATH} ${CMAKE_LIBRARY_PATH}
PATHS ${pytrellis_paths}
PATH_SUFFIXES ${TRELLIS_PROGRAM_PREFIX}trellis
DOC "Location of the pytrellis library")
if(NOT TRELLIS_LIBDIR)