Fixed ctest on Windows (should call Perl's prove.bat, not just prove)

CMakeLists.txt

@@ -52,18 +52,21 @@ endif()
 
 add_subdirectory(xs)
 
+get_filename_component(PERL_BIN_PATH "${PERL_EXECUTABLE}" DIRECTORY)
 if (MSVC)
 	# By default the startup project in MSVC is the 'ALL_BUILD' cmake-created project,
 	# but we want 'slic3r' as the startup one because debugging run command is associated with it.
 	# (Unfortunatelly it cannot be associated with ALL_BUILD using CMake.)
 	# Note: For some reason this needs to be set in the top-level CMakeLists.txt
 	set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT XS)
+	set(PERL_PROVE "${PERL_BIN_PATH}/prove.bat")
+else ()
+	set(PERL_PROVE "${PERL_BIN_PATH}/prove")
 endif ()
 
 enable_testing ()
-get_filename_component(PERL_BIN_PATH "${PERL_EXECUTABLE}" DIRECTORY)
-add_test (NAME xs COMMAND "${PERL_EXECUTABLE}" ${PERL_BIN_PATH}/prove -I ${PROJECT_SOURCE_DIR}/local-lib/lib/perl5 WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/xs)
-add_test (NAME integration COMMAND "${PERL_EXECUTABLE}" ${PERL_BIN_PATH}/prove WORKING_DIRECTORY ${PROJECT_SOURCE_DIR})
+add_test (NAME xs COMMAND "${PERL_EXECUTABLE}" ${PERL_PROVE} -I ${PROJECT_SOURCE_DIR}/local-lib/lib/perl5 WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/xs)
+add_test (NAME integration COMMAND "${PERL_EXECUTABLE}" ${PERL_PROVE} WORKING_DIRECTORY ${PROJECT_SOURCE_DIR})
 
 install(PROGRAMS slic3r.pl DESTINATION bin RENAME slic3r-prusa3d)