neovim/cmake/FindLpeg.cmake

find_library2(LPEG_LIBRARY NAMES lpeg_a lpeg liblpeg_a lpeg.so lpeg${CMAKE_SHARED_LIBRARY_SUFFIX} PATH_SUFFIXES lua/5.1)
if(CMAKE_SYSTEM_NAME STREQUAL "Darwin" AND LPEG_LIBRARY MATCHES ".so$")
  execute_process(
    COMMAND otool -hv "${LPEG_LIBRARY}"
    OUTPUT_VARIABLE LPEG_HEADER
    )
  if(LPEG_HEADER MATCHES ".* BUNDLE .*")
    message(FATAL_ERROR "lpeg library found at ${LPEG_LIBRARY} but built as a bundle rather than a dylib, please rebuild with `-dynamiclib` rather than `-bundle`")
  endif()
endif()

find_package_handle_standard_args(Lpeg DEFAULT_MSG LPEG_LIBRARY)
mark_as_advanced(LPEG_LIBRARY)

# Workaround: use an imported library to prevent cmake from modifying library
# link path. See #23395.
add_library(lpeg UNKNOWN IMPORTED)
set_target_properties(lpeg PROPERTIES IMPORTED_LOCATION ${LPEG_LIBRARY})
build(lpeg): search for lpeg.so on MacOS Problem: Currently Neovim only searches for lpeg.dylib, liblpeg.dylib, etc. on MacOS, but a normal installation of lpeg will produce lpeg.so instead. There are explicit workarounds for this by modifying lpeg's package in Homebrew, and will shortly be another in spack. Solution: also search for lpeg.so even if that's not the platform default, because Lua and luarocks use it anyway. 2024-10-10 11:14:23 -07:00			`find_library2(LPEG_LIBRARY NAMES lpeg_a lpeg liblpeg_a lpeg.so lpeg${CMAKE_SHARED_LIBRARY_SUFFIX} PATH_SUFFIXES lua/5.1)`
			`if(CMAKE_SYSTEM_NAME STREQUAL "Darwin" AND LPEG_LIBRARY MATCHES ".so$")`
			`execute_process(`
			`COMMAND otool -hv "${LPEG_LIBRARY}"`
			`OUTPUT_VARIABLE LPEG_HEADER`
			`)`
			`if(LPEG_HEADER MATCHES ".* BUNDLE .*")`
			message(FATAL_ERROR "lpeg library found at ${LPEG_LIBRARY} but built as a bundle rather than a dylib, please rebuild with `-dynamiclib` rather than `-bundle`")
			`endif()`
			`endif()`
refactor(build): include lpeg as a library 2023-04-20 04:19:38 -07:00
			`find_package_handle_standard_args(Lpeg DEFAULT_MSG LPEG_LIBRARY)`
			`mark_as_advanced(LPEG_LIBRARY)`

build: make lpeg an imported library Cmake truncates the full link path to a shared library if it is missing an SONAME in some undocumented scenarios. This causes builds in some systems to fail if "lpeg" isn't a library on the system path. The path of imported libraries aren't modified by cmake, so we can use that as a workaround until a proper solution for this has been identified. Closes https://github.com/neovim/neovim/issues/23395. 2023-04-30 14:57:15 -07:00			`# Workaround: use an imported library to prevent cmake from modifying library`
			`# link path. See #23395.`
			`add_library(lpeg UNKNOWN IMPORTED)`
			`set_target_properties(lpeg PROPERTIES IMPORTED_LOCATION ${LPEG_LIBRARY})`