Replace remaining instances of BUILD_{SHARED,STATIC} control variable

Further clean up changes introduced with 522feb1.

CMakeLists.txt

@@ -259,14 +259,6 @@ if(PY_VERSION_MAJOR VERSION_GREATER 2)
     set(IS_PY2 0)
 endif()
 
-# Convenience boolean variables to easily test the type of python library being build
-set(BUILD_STATIC 1)
-set(BUILD_SHARED 0)
-if(BUILD_LIBPYTHON_SHARED)
-  set(BUILD_STATIC 0)
-  set(BUILD_SHARED 1)
-endif()
-
 # Options depending of the python version
 if(IS_PY2)
   option(Py_USING_UNICODE "Enable unicode support" ON)
@@ -297,10 +289,6 @@ set(LIBPYTHON python${LIBPYTHON_VERSION})
 # Proceed to the configure checks
 include(cmake/ConfigureChecks.cmake)
 
-if(NOT BUILD_SHARED AND NOT BUILD_STATIC)
-    message(FATAL_ERROR "One or both of BUILD_SHARED or BUILD_STATIC must be set")
-endif()
-
 # Set PYTHONHOME
 set(LIBDIR "Lib") # See Lib/distutils/sysconfig.py - function 'get_python_lib'
 if(UNIX)
@@ -417,7 +405,7 @@ file(WRITE ${CONFIG_BUILD_DIR}/PythonTargets.cmake "")
 # Define python executable wrapper command to ensure
 # python executable resolves the expected python library.
 set(PYTHON_WRAPPER_COMMAND )
-if(BUILD_SHARED AND UNIX)
+if(BUILD_LIBPYTHON_SHARED AND UNIX)
     set(_envvar LD_LIBRARY_PATH)
     if(APPLE)
         set(_envvar DYLD_LIBRARY_PATH)

cmake/Extensions.cmake

@@ -150,7 +150,7 @@ function(add_python_extension name)
         set_property(GLOBAL APPEND PROPERTY extension_${name}_link_libraries ${ADD_PYTHON_EXTENSION_LIBRARIES})
         set_property(GLOBAL APPEND PROPERTY extension_${name}_includedirs ${ADD_PYTHON_EXTENSION_INCLUDEDIRS})
         set_property(GLOBAL APPEND PROPERTY extension_${name}_definitions ${ADD_PYTHON_EXTENSION_DEFINITIONS})
-    elseif(WIN32 AND NOT BUILD_SHARED)
+    elseif(WIN32 AND NOT BUILD_LIBPYTHON_SHARED)
         # Extensions cannot be built against a static libpython on windows
     else()
 

cmake/PythonConfig.cmake.in

@@ -3,8 +3,14 @@
 
 @PACKAGE_INIT@
 
-set(PYTHON_BUILD_SHARED "@BUILD_SHARED@")
-set(PYTHON_BUILD_STATIC "@BUILD_STATIC@")
+set(BUILD_LIBPYTHON_SHARED @BUILD_LIBPYTHON_SHARED@)
+if(BUILD_LIBPYTHON_SHARED)
+  set(PYTHON_BUILD_SHARED 1)
+  set(PYTHON_BUILD_STATIC 0)
+else()
+  set(PYTHON_BUILD_SHARED 0)
+  set(PYTHON_BUILD_STATIC 1)
+endif()
 
 set_and_check(PYTHON_CONFIG_DIR "@PACKAGE_CONFIG_DIR_CONFIG@")
 set_and_check(PYTHON_INCLUDE_DIR "@PACKAGE_INCLUDE_DIR_CONFIG@")

cmake/extensions/CMakeLists.txt

@@ -277,7 +277,7 @@ if(WIN32)
                   _ctypes/libffi_msvc/prep_cif.c
                   _ctypes/libffi_msvc/ffi.c
                   _ctypes/libffi_msvc/${_ctype_arch_impl}
-          REQUIRES BUILD_SHARED
+          REQUIRES BUILD_LIBPYTHON_SHARED
           INCLUDEDIRS ${SRC_DIR}/Modules/_ctypes/libffi_msvc
         )
     endif()

cmake/libpython/CMakeLists.txt

@@ -472,7 +472,7 @@ function(add_libpython name type install component)
     endif()
 endfunction()
 
-if(BUILD_SHARED)
+if(BUILD_LIBPYTHON_SHARED)
     add_libpython(libpython-shared SHARED 1 Runtime)
     set_target_properties(libpython-shared PROPERTIES
         ARCHIVE_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/${LIBPYTHON_ARCHIVEDIR}
@@ -557,7 +557,7 @@ if(BUILD_SHARED)
 
 endif()
 
-if(BUILD_STATIC)
+if(NOT BUILD_LIBPYTHON_SHARED)
     add_libpython(libpython-static STATIC ${INSTALL_DEVELOPMENT} Development)
     if(HAVE_TARGET_COMPILE_DEFINITIONS)
         target_compile_definitions(libpython-static PUBLIC Py_NO_ENABLE_SHARED)

cmake/python/CMakeLists.txt

@@ -13,7 +13,7 @@ set_property(
 
 # Link against the shared libpython if it was built, otherwise use the static
 # version.
-if(BUILD_SHARED)
+if(BUILD_LIBPYTHON_SHARED)
     target_link_libraries(python libpython-shared)
 else()
     target_link_libraries(python libpython-static)