Install libraries to /usr/lib, not to /usr/lib/trellis/.

This fixes tracing dependencies:

	>>> prjtrellis*: Tracing dependencies...
	>>> ERROR: prjtrellis*: libtrellis.so: path not found
		so:libboost_filesystem.so.1.82.0
		so:libboost_program_options.so.1.82.0
		so:libboost_thread.so.1.82.0
		so:libc.musl-x86_64.so.1
		so:libgcc_s.so.1
		so:libpython3.11.so.1.0
		so:libstdc++.so.6

--- a/libtrellis/CMakeLists.txt	2023-05-08 09:55:05.000000000 +0200
+++ b/libtrellis/CMakeLists.txt	2024-01-10 10:31:42.455914809 +0100
@@ -100,20 +100,6 @@ include(GNUInstallDirs)
 file(RELATIVE_PATH TRELLIS_RPATH_LIBDIR /${CMAKE_INSTALL_BINDIR} /${CMAKE_INSTALL_LIBDIR})
 file(RELATIVE_PATH TRELLIS_RPATH_DATADIR /${CMAKE_INSTALL_BINDIR} /${CMAKE_INSTALL_DATADIR})
 
-function(setup_rpath name)
-    if(APPLE)
-        set_target_properties(${name} PROPERTIES
-                              BUILD_WITH_INSTALL_RPATH ON
-                              INSTALL_RPATH "@loader_path/${TRELLIS_RPATH_LIBDIR}/${PROGRAM_PREFIX}trellis"
-                              INSTALL_NAME_DIR "@rpath")
-    elseif(UNIX)
-        set_target_properties(${name} PROPERTIES
-                              BUILD_WITH_INSTALL_RPATH ON
-                              INSTALL_RPATH "\$ORIGIN/${TRELLIS_RPATH_LIBDIR}/${PROGRAM_PREFIX}trellis")
-    endif()
-endfunction()
-
-
 # Avoid perturbing build if git version hasn't changed
 file(MAKE_DIRECTORY "${CMAKE_BINARY_DIR}/generated")
 set(LAST_GIT_VERSION "")
@@ -137,7 +123,6 @@ if (BUILD_ECPBRAM)
     target_include_directories(${PROGRAM_PREFIX}ecpbram PRIVATE tools)
     target_compile_definitions(${PROGRAM_PREFIX}ecpbram PRIVATE TRELLIS_RPATH_DATADIR="${TRELLIS_RPATH_DATADIR}" TRELLIS_PREFIX="${CMAKE_INSTALL_PREFIX}" TRELLIS_PROGRAM_PREFIX="${PROGRAM_PREFIX}")
     target_link_libraries(${PROGRAM_PREFIX}ecpbram trellis ${Boost_LIBRARIES} ${CMAKE_DL_LIBS} ${link_param})
-    setup_rpath(${PROGRAM_PREFIX}ecpbram)
     if (WASI)
         set_property(TARGET ${PROGRAM_PREFIX}ecpbram PROPERTY SUFFIX ".wasm")
     endif()
@@ -149,7 +134,6 @@ if (BUILD_ECPPACK)
     target_include_directories(${PROGRAM_PREFIX}ecppack PRIVATE tools)
     target_compile_definitions(${PROGRAM_PREFIX}ecppack PRIVATE TRELLIS_RPATH_DATADIR="${TRELLIS_RPATH_DATADIR}" TRELLIS_PREFIX="${CMAKE_INSTALL_PREFIX}" TRELLIS_PROGRAM_PREFIX="${PROGRAM_PREFIX}")
     target_link_libraries(${PROGRAM_PREFIX}ecppack trellis ${Boost_LIBRARIES} ${CMAKE_DL_LIBS} ${link_param})
-    setup_rpath(${PROGRAM_PREFIX}ecppack)
     if (WASI)
         set_property(TARGET ${PROGRAM_PREFIX}ecppack PROPERTY SUFFIX ".wasm")
     endif()
@@ -161,7 +145,6 @@ if (BUILD_ECPUNPACK)
     target_include_directories(${PROGRAM_PREFIX}ecpunpack PRIVATE tools)
     target_compile_definitions(${PROGRAM_PREFIX}ecpunpack PRIVATE TRELLIS_RPATH_DATADIR="${TRELLIS_RPATH_DATADIR}" TRELLIS_PREFIX="${CMAKE_INSTALL_PREFIX}" TRELLIS_PROGRAM_PREFIX="${PROGRAM_PREFIX}")
     target_link_libraries(${PROGRAM_PREFIX}ecpunpack trellis ${Boost_LIBRARIES} ${CMAKE_DL_LIBS} ${link_param})
-    setup_rpath(${PROGRAM_PREFIX}ecpunpack)
     if (WASI)
         set_property(TARGET ${PROGRAM_PREFIX}ecpunpack PROPERTY SUFFIX ".wasm")
     endif()
@@ -173,7 +156,6 @@ if (BUILD_ECPPLL)
     target_include_directories(${PROGRAM_PREFIX}ecppll PRIVATE tools)
     target_compile_definitions(${PROGRAM_PREFIX}ecppll PRIVATE TRELLIS_RPATH_DATADIR="${TRELLIS_RPATH_DATADIR}" TRELLIS_PREFIX="${CMAKE_INSTALL_PREFIX}" TRELLIS_PROGRAM_PREFIX="${PROGRAM_PREFIX}")
     target_link_libraries(${PROGRAM_PREFIX}ecppll trellis ${Boost_LIBRARIES} ${CMAKE_DL_LIBS} ${link_param})
-    setup_rpath(${PROGRAM_PREFIX}ecppll)
     if (WASI)
         set_property(TARGET ${PROGRAM_PREFIX}ecppll PROPERTY SUFFIX ".wasm")
     endif()
@@ -185,7 +167,6 @@ if (BUILD_ECPMULTI)
     target_include_directories(${PROGRAM_PREFIX}ecpmulti PRIVATE tools)
     target_compile_definitions(${PROGRAM_PREFIX}ecpmulti PRIVATE TRELLIS_RPATH_DATADIR="${TRELLIS_RPATH_DATADIR}" TRELLIS_PREFIX="${CMAKE_INSTALL_PREFIX}" TRELLIS_PROGRAM_PREFIX="${PROGRAM_PREFIX}")
     target_link_libraries(${PROGRAM_PREFIX}ecpmulti trellis ${Boost_LIBRARIES} ${CMAKE_DL_LIBS} ${link_param})
-    setup_rpath(${PROGRAM_PREFIX}ecpmulti)
     if (WASI)
         set_property(TARGET ${PROGRAM_PREFIX}ecpmulti PROPERTY SUFFIX ".wasm")
     endif()
@@ -194,7 +175,7 @@ endif()
 
 
 if (BUILD_SHARED)
-    install(TARGETS trellis ${PythonInstallTarget} LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}/${PROGRAM_PREFIX}trellis)
+    install(TARGETS trellis ${PythonInstallTarget} LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
 endif()
 
 install(DIRECTORY ../database DESTINATION ${CMAKE_INSTALL_DATADIR}/${PROGRAM_PREFIX}trellis PATTERN ".git" EXCLUDE)