build-cmake/: add a new CMakeLists.txt file as a fallback

For certain platforms where autotools is not the preferred build system,
provide a fallback cmake file that can compile protoc-c and a static
library of libprotobuf-c.

Based on the file from alex85k's protobuf-c repository.

(Issue #168.)

build-cmake/.gitignore

+*
+!.gitignore
+!CMakeLists.txt

build-cmake/CMakeLists.txt

+SET(PACKAGE protobuf-c)
+SET(PACKAGE_NAME protobuf-c)
+SET(PACKAGE_VERSION 1.0.1)
+
+
+CMAKE_MINIMUM_REQUIRED(VERSION 2.8 FATAL_ERROR)
+
+PROJECT(protobuf-c)
+
+INCLUDE(TestBigEndian)
+TEST_BIG_ENDIAN(WORDS_BIGENDIAN)
+
+SET(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
+ADD_DEFINITIONS(-DPACKAGE_VERSION="${PACKAGE_VERSION}")
+ADD_DEFINITIONS(-DPACKAGE_STRING="${PACKAGE_STRING}")
+ADD_DEFINITIONS(-DWORDS_BIGENDIAN=${WORDS_BIGENDIAN})
+
+if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
+  # using Visual Studio C++
+  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /wd4267 /wd4244")
+  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4267 /wd4244")
+ENDIF()
+
+get_filename_component(MAIN_DIR ${CMAKE_SOURCE_DIR} PATH)
+SET(TEST_DIR ${MAIN_DIR}/t)
+
+MESSAGE(${MAIN_DIR})
+
+SET (PC_SOURCES
+        ${MAIN_DIR}/protobuf-c/protobuf-c.c
+        ${MAIN_DIR}/protobuf-c/protobuf-c.h)
+
+ADD_LIBRARY(protobuf-c ${PC_SOURCES})
+
+INCLUDE_DIRECTORIES(${MAIN_DIR})
+INCLUDE_DIRECTORIES(${MAIN_DIR}/protobuf-c)
+INCLUDE_DIRECTORIES(${CMAKE_BINARY_DIR}) # for generated files
+
+FIND_PACKAGE(Protobuf REQUIRED)
+INCLUDE_DIRECTORIES(${PROTOBUF_INCLUDE_DIR})
+
+file(GLOB PROTOC_SRC ${MAIN_DIR}/protoc-c/*.h ${MAIN_DIR}/protoc-c/*.cc )
+ADD_EXECUTABLE(protoc-c ${PROTOC_SRC})
+
+TARGET_LINK_LIBRARIES(protoc-c ${PROTOBUF_PROTOC_LIBRARY} ${PROTOBUF_LIBRARY})
+
+IF(CMAKE_BUILD_TYPE MATCHES Debug)
+ENABLE_TESTING()
+ADD_CUSTOM_COMMAND(OUTPUT t/test.pb-c.c t/test.pb-c.h
+                   COMMAND protoc-c -I${MAIN_DIR} ${TEST_DIR}/test.proto --c_out=${CMAKE_BINARY_DIR}
+                   DEPENDS protoc-c
+                   )
+
+
+ADD_EXECUTABLE(test-generated-code ${TEST_DIR}/generated-code/test-generated-code.c t/test.pb-c.c t/test.pb-c.h )
+TARGET_LINK_LIBRARIES(test-generated-code protobuf-c)
+
+
+ADD_CUSTOM_COMMAND(OUTPUT t/test-full.pb.cc t/test-full.pb.h
+                   COMMAND ${PROTOBUF_PROTOC_EXECUTABLE}
+		   ARGS --cpp_out ${CMAKE_BINARY_DIR} -I${MAIN_DIR} ${TEST_DIR}/test-full.proto)
+
+ADD_CUSTOM_COMMAND(OUTPUT t/test-full.pb-c.c t/test-full.pb-c.h
+                   COMMAND protoc-c -I${MAIN_DIR} ${TEST_DIR}/test-full.proto --c_out=${CMAKE_BINARY_DIR}
+                   DEPENDS protoc-c
+                   )
+
+ADD_EXECUTABLE(cxx-generate-packed-data ${TEST_DIR}/generated-code2/cxx-generate-packed-data.cc t/test-full.pb.h t/test-full.pb.cc)
+TARGET_LINK_LIBRARIES(cxx-generate-packed-data ${PROTOBUF_LIBRARY})
+
+FILE(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/t/generated-code2)
+ADD_CUSTOM_COMMAND(OUTPUT t/generated-code2/test-full-cxx-output.inc
+                   COMMAND ${CMAKE_BINARY_DIR}/cxx-generate-packed-data ">t/generated-code2/test-full-cxx-output.inc"
+                   DEPENDS cxx-generate-packed-data
+                   )
+
+ADD_EXECUTABLE(test-generated-code2 ${TEST_DIR}/generated-code2/test-generated-code2.c t/generated-code2/test-full-cxx-output.inc t/test-full.pb-c.h t/test-full.pb-c.c)
+TARGET_LINK_LIBRARIES(test-generated-code2  protobuf-c)
+
+ADD_EXECUTABLE(test-version ${TEST_DIR}/version/version.c)
+TARGET_LINK_LIBRARIES(test-version protobuf-c)
+
+
+ENDIF()
+
+
+INSTALL(TARGETS protoc-c protobuf-c RUNTIME DESTINATION bin LIBRARY DESTINATION lib ARCHIVE DESTINATION lib)
+INSTALL(FILES ${MAIN_DIR}/protobuf-c/protobuf-c.h DESTINATION include/protobuf-c)
+INSTALL(FILES ${MAIN_DIR}/protobuf-c/protobuf-c.h DESTINATION include)
+INCLUDE(Dart)
+
+SET(DART_TESTING_TIMEOUT 5)
+ADD_TEST(test-generated-code test-generated-code)
+ADD_TEST(test-generated-code2 test-generated-code2)
+ADD_TEST(test-version test-version)
+
+
+INCLUDE(CPack)