build: clean up / remove X_USE_STATIC (#10713)

This was discouraged (as an option) in 5b5d353151 [1], not enabled/used by
default, and not working according to the comment in local.mk.example.

Taken out of https://github.com/neovim/neovim/pull/10395.

1: https://github.com/neovim/neovim/pull/2465

cmake/FindLibLUV.cmake

@@ -14,12 +14,6 @@ set(LIBLUV_DEFINITIONS ${PC_LIBLUV_CFLAGS_OTHER})
 find_path(LIBLUV_INCLUDE_DIR luv/luv.h
           PATHS ${PC_LIBLUV_INCLUDEDIR} ${PC_LIBLUV_INCLUDE_DIRS})
 
-# If we're asked to use static linkage, add libluv.a as a preferred library name.
-if(LIBLUV_USE_STATIC)
-  list(APPEND LIBLUV_NAMES
-    "${CMAKE_STATIC_LIBRARY_PREFIX}luv${CMAKE_STATIC_LIBRARY_SUFFIX}")
-endif()
-
 list(APPEND LIBLUV_NAMES luv)
 
 find_library(LIBLUV_LIBRARY NAMES ${LIBLUV_NAMES}

cmake/FindLibTermkey.cmake

@@ -14,12 +14,6 @@ set(LIBTERMKEY_DEFINITIONS ${PC_LIBTERMKEY_CFLAGS_OTHER})
 find_path(LIBTERMKEY_INCLUDE_DIR termkey.h
           PATHS ${PC_LIBTERMKEY_INCLUDEDIR} ${PC_LIBTERMKEY_INCLUDE_DIRS})
 
-# If we're asked to use static linkage, add libuv.a as a preferred library name.
-if(LIBTERMKEY_USE_STATIC)
-  list(APPEND LIBTERMKEY_NAMES
-    "${CMAKE_STATIC_LIBRARY_PREFIX}termkey${CMAKE_STATIC_LIBRARY_SUFFIX}")
-endif()
-
 list(APPEND LIBTERMKEY_NAMES termkey)
 
 find_library(LIBTERMKEY_LIBRARY NAMES ${LIBTERMKEY_NAMES}

cmake/FindLibUV.cmake

@@ -4,9 +4,6 @@
 #  LIBUV_FOUND - system has libuv
 #  LIBUV_INCLUDE_DIRS - the libuv include directories
 #  LIBUV_LIBRARIES - link these to use libuv
-#
-# Set the LIBUV_USE_STATIC variable to specify if static libraries should
-# be preferred to shared ones.
 
 find_package(PkgConfig)
 if (PKG_CONFIG_FOUND)
@@ -16,12 +13,6 @@ endif()
 find_path(LIBUV_INCLUDE_DIR uv.h
   HINTS ${PC_LIBUV_INCLUDEDIR} ${PC_LIBUV_INCLUDE_DIRS})
 
-# If we're asked to use static linkage, add libuv.a as a preferred library name.
-if(LIBUV_USE_STATIC)
-  list(APPEND LIBUV_NAMES
-    "${CMAKE_STATIC_LIBRARY_PREFIX}uv${CMAKE_STATIC_LIBRARY_SUFFIX}")
-endif(LIBUV_USE_STATIC)
-
 list(APPEND LIBUV_NAMES uv)
 
 find_library(LIBUV_LIBRARY NAMES ${LIBUV_NAMES}

cmake/FindLibVterm.cmake

@@ -14,12 +14,6 @@ set(LIBVTERM_DEFINITIONS ${PC_LIBVTERM_CFLAGS_OTHER})
 find_path(LIBVTERM_INCLUDE_DIR vterm.h
           PATHS ${PC_LIBVTERM_INCLUDEDIR} ${PC_LIBVTERM_INCLUDE_DIRS})
 
-# If we're asked to use static linkage, add libuv.a as a preferred library name.
-if(LIBVTERM_USE_STATIC)
-  list(APPEND LIBVTERM_NAMES
-    "${CMAKE_STATIC_LIBRARY_PREFIX}vterm${CMAKE_STATIC_LIBRARY_SUFFIX}")
-endif()
-
 list(APPEND LIBVTERM_NAMES vterm)
 
 find_library(LIBVTERM_LIBRARY NAMES ${LIBVTERM_NAMES}

cmake/FindLuaJit.cmake

@@ -15,13 +15,6 @@ find_path(LUAJIT_INCLUDE_DIR luajit.h
           PATHS ${PC_LUAJIT_INCLUDEDIR} ${PC_LUAJIT_INCLUDE_DIRS}
           PATH_SUFFIXES luajit-2.0 luajit-2.1)
 
-# If we're asked to use static linkage, add libluajit-5.1.a as a preferred
-# library name.
-if(LUAJIT_USE_STATIC)
-  list(APPEND LUAJIT_NAMES
-    "${CMAKE_STATIC_LIBRARY_PREFIX}luajit-5.1${CMAKE_STATIC_LIBRARY_SUFFIX}")
-endif()
-
 if(MSVC)
   list(APPEND LUAJIT_NAMES lua51)
 elseif(MINGW)

cmake/FindMsgpack.cmake

@@ -26,13 +26,6 @@ else()
   set(MSGPACK_VERSION_STRING)
 endif()
 
-# If we're asked to use static linkage, add libmsgpack{,c}.a as a preferred library name.
-if(MSGPACK_USE_STATIC)
-  list(APPEND MSGPACK_NAMES
-    "${CMAKE_STATIC_LIBRARY_PREFIX}msgpackc${CMAKE_STATIC_LIBRARY_SUFFIX}"
-    "${CMAKE_STATIC_LIBRARY_PREFIX}msgpack${CMAKE_STATIC_LIBRARY_SUFFIX}")
-endif()
-
 if(MSVC)
   # The import library for the msgpack DLL has a different name
   list(APPEND MSGPACK_NAMES msgpackc_import)

contrib/local.mk.example

@@ -47,18 +47,6 @@
 #
 # DEPS_CMAKE_FLAGS += -DUSE_BUNDLED=OFF
 
-# By default, bundled libraries are statically linked to nvim.
-# This has no effect for non-bundled deps, which are always dynamically linked.
-# Uncomment these entries to instead use dynamic linking.
-#
-# CMAKE_EXTRA_FLAGS += -DLIBTERMKEY_USE_STATIC=OFF
-# CMAKE_EXTRA_FLAGS += -DLIBUNIBILIUM_USE_STATIC=OFF
-# CMAKE_EXTRA_FLAGS += -DLIBUV_USE_STATIC=OFF
-# CMAKE_EXTRA_FLAGS += -DLIBVTERM_USE_STATIC=OFF
-# CMAKE_EXTRA_FLAGS += -DLUAJIT_USE_STATIC=OFF
-# CMAKE_EXTRA_FLAGS += -DMSGPACK_USE_STATIC=OFF
-#
-#
 # .DEFAULT_GOAL := nvim
 #
 # Run doxygen over the source code.