Added CMake build system (to facilitate Win64 builds)

Win32 build and tests work under CMake, however I haven't added
install code yet. Win64 build fails due to chkstk.S failing to
assemble.

tests/CMakeLists.txt

@@ -0,0 +1,98 @@
+include_directories(${CMAKE_SOURCE_DIR})
+
+add_executable(abitest-cc abitest.c)
+target_link_libraries(abitest-cc libtcc)
+add_test(NAME abitest-cc WORKING_DIRECTORY ${CMAKE_BINARY_DIR} COMMAND abitest-cc lib_path=${CMAKE_BINARY_DIR} include=${CMAKE_SOURCE_DIR}/include)
+
+set(ABITEST_TCC abitest-tcc${CMAKE_EXECUTABLE_SUFFIX})
+get_property(LIBTCC_LIB TARGET libtcc PROPERTY LOCATION)
+add_custom_command(OUTPUT ${ABITEST_TCC} COMMAND tcc ${TCC_CFLAGS} -I${CMAKE_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/abitest.c ${LIBTCC_LIB} -o ${ABITEST_TCC} DEPENDS abitest.c)
+add_custom_target(abitest-tcc-exe ALL DEPENDS ${ABITEST_TCC})
+
+add_test(NAME abitest-tcc WORKING_DIRECTORY ${CMAKE_BINARY_DIR} COMMAND ${CMAKE_CURRENT_BINARY_DIR}/${ABITEST_TCC} lib_path=${CMAKE_BINARY_DIR} include=${CMAKE_SOURCE_DIR}/include)
+
+add_executable(tcctest-cc tcctest.c)
+target_link_libraries(tcctest-cc libtcc)
+set_target_properties(tcctest-cc PROPERTIES INCLUDE_DIRECTORIES "${CMAKE_BINARY_DIR};${CMAKE_SOURCE_DIR}/include" COMPILE_FLAGS -std=gnu99)
+
+set(TCC_TEST_CFLAGS ${TCC_CFLAGS} -B${CMAKE_BINARY_DIR} -I${CMAKE_BINARY_DIR})
+if(WIN32)
+  set(TCC_TEST_CFLAGS ${TCC_TEST_CFLAGS} -I${CMAKE_SOURCE_DIR}/win32/include/winapi)
+endif()
+set(TCC_TEST_SOURCE ${TCC_TEST_CFLAGS} -run ${CMAKE_CURRENT_SOURCE_DIR}/tcctest.c)
+set(TCC_TEST_RUN ${TCC_TEST_CFLAGS} -DONE_SOURCE -run ${CMAKE_SOURCE_DIR}/tcc.c)
+
+add_custom_command(OUTPUT tcctest.ref COMMAND tcctest-cc > tcctest.ref)
+add_custom_command(OUTPUT tcctest.1 COMMAND tcc ${TCC_TEST_SOURCE} > tcctest.1)
+add_custom_command(OUTPUT tcctest.2 COMMAND tcc ${TCC_TEST_RUN} ${TCC_TEST_SOURCE} > tcctest.2)
+add_custom_command(OUTPUT tcctest.3 COMMAND tcc ${TCC_TEST_RUN} ${TCC_TEST_RUN} ${TCC_TEST_SOURCE} > tcctest.3)
+add_custom_target(tcctest-ref ALL DEPENDS tcctest.ref tcctest.1 tcctest.2 tcctest.3)
+
+find_program(DIFF diff C:/MinGW/msys/1.0/bin)
+
+add_test(test1 ${DIFF} tcctest.ref tcctest.1)
+add_test(test2 ${DIFF} tcctest.ref tcctest.2)
+add_test(test3 ${DIFF} tcctest.ref tcctest.3)
+
+set(MORETESTS
+ 00_assignment
+ 01_comment
+ 02_printf
+ 03_struct
+ 04_for
+ 05_array
+ 06_case
+ 07_function
+ 08_while
+ 09_do_while
+ 10_pointer
+ 11_precedence
+ 12_hashdefine
+ 13_integer_literals
+ 14_if
+ 15_recursion
+ 16_nesting
+ 17_enum
+ 18_include
+ 19_pointer_arithmetic
+ 20_pointer_comparison
+ 21_char_array
+ 22_floating_point
+ 23_type_coercion
+ 24_math_library
+ 25_quicksort
+ 26_character_constants
+ 27_sizeof
+ 28_strings
+ 29_array_address
+ 31_args
+ 32_led
+ 33_ternary_op
+ 35_sizeof
+ 36_array_initialisers
+ 37_sprintf
+ 38_multiple_array_index
+ 39_typedef
+ 40_stdio
+ 41_hashif
+ 42_function_pointer
+ 43_void_param
+ 44_scoped_declarations
+ 45_empty_for
+ 47_switch_return
+ 48_nested_break
+ 49_bracket_evaluation
+ 50_logical_second_arg
+ 51_static
+ 52_unnamed_enum
+ 54_goto
+ 55_lshift_type
+)
+if(WIN32)
+  list(REMOVE_ITEM MORETESTS 24_math_library)
+  list(REMOVE_ITEM MORETESTS 28_strings)
+endif()
+foreach(testfile ${MORETESTS})
+  add_test(NAME ${testfile} WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/tests2
+           COMMAND tcc ${TCC_CFLAGS} -run ${testfile}.c - arg1 arg2 arg3 arg4 | ${DIFF} - ${testfile}.expect)
+endforeach()