CppUTest examples build fails - xcode4

Question

I am new to mac!
I download the xcode4.2 and tried to build CppUTest-v3
1)when I do make, I have the following logs
compiling AllTests.cpp
compiling AllocationInCppFile.cpp
compiling CheatSheetTest.cpp
compiling CommandLineArgumentsTest.cpp
compiling CommandLineTestRunnerTest.cpp
compiling JUnitOutputTest.cpp
compiling MemoryLeakDetectorTest.cpp
compiling MemoryLeakOperatorOverloadsTest.cpp
compiling MemoryLeakWarningTest.cpp
compiling NullTestTest.cpp
compiling PluginTest.cpp
compiling PreprocessorTest.cpp
compiling SetPluginTest.cpp
compiling SimpleStringTest.cpp
compiling TestFailureTest.cpp
compiling TestFilterTest.cpp
compiling TestHarness_cTest.cpp
compiling TestInstallerTest.cpp
compiling TestMemoryAllocatorTest.cpp
compiling TestOutputTest.cpp
compiling TestRegistryTest.cpp
compiling TestResultTest.cpp
compiling UtestTest.cpp
compiling AllocationInCFile.c
compiling TestHarness_cTestCFile.c
compiling CommandLineArguments.cpp
compiling CommandLineTestRunner.cpp
compiling JUnitTestOutput.cpp
compiling MemoryLeakDetector.cpp
compiling MemoryLeakWarningPlugin.cpp
compiling SimpleString.cpp
compiling TestFailure.cpp
compiling TestFilter.cpp
compiling TestHarness_c.cpp
compiling TestMemoryAllocator.cpp
compiling TestOutput.cpp
compiling TestPlugin.cpp
compiling TestRegistry.cpp
compiling TestResult.cpp
compiling Utest.cpp
compiling UtestPlatform.cpp
Building archive lib/libCppUTest.a
ar: creating archive lib/libCppUTest.a
a - objs/src/CppUTest/CommandLineArguments.o
a - objs/src/CppUTest/CommandLineTestRunner.o
a - objs/src/CppUTest/JUnitTestOutput.o
a - objs/src/CppUTest/MemoryLeakDetector.o
a - objs/src/CppUTest/MemoryLeakWarningPlugin.o
a - objs/src/CppUTest/SimpleString.o
a - objs/src/CppUTest/TestFailure.o
a - objs/src/CppUTest/TestFilter.o
a - objs/src/CppUTest/TestHarness_c.o
a - objs/src/CppUTest/TestMemoryAllocator.o
a - objs/src/CppUTest/TestOutput.o
a - objs/src/CppUTest/TestPlugin.o
a - objs/src/CppUTest/TestRegistry.o
a - objs/src/CppUTest/TestResult.o
a - objs/src/CppUTest/Utest.o
a - objs/src/Platforms/Gcc/UtestPlatform.o
Linking CppUTest_tests
ld: library not found for -lgcov
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [CppUTest_tests] Error 1
I found out that I can build by using the llvm make command
CC=/Applications/Xcode.app/Contents/Developer/usr/bin/llvm-gcc-4.2 make
Linking CppUTest_tests
Running CppUTest_tests
..................................................
..................................................
..................................................
..................................................
..................................................
...........................................
OK (293 tests, 293 ran, 791 checks, 0 ignored, 0 filtered out, 7 ms)
2)Then I cd to the examples directory. I got the following errors. I tried to investigate but could not find out how to solve it. Your help will be appreciated.
compiling AllTests.cpp
compiling CircularBuffer.cpp
compiling CircularBufferTest.cpp
compiling EventDispatcher.cpp
compiling EventDispatcherTest.cpp
compiling HelloTest.cpp
compiling MockDocumentationTest.cpp
ApplicationLib/MockDocumentationTest.cpp:193:85: warning: expression result unused [-Wunused-value]
mock_c()->actualCall("foo")->withIntParameters("integer", 10)->returnValue().value.doubleValue;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~
1 warning generated.
compiling Printer.cpp
compiling PrinterTest.cpp
compiling hello.c
Building archive lib/libCppUTestExamples.a
ar: creating archive lib/libCppUTestExamples.a
a - objs/ApplicationLib/CircularBuffer.o
a - objs/ApplicationLib/CircularBufferTest.o
a - objs/ApplicationLib/EventDispatcher.o
a - objs/ApplicationLib/EventDispatcherTest.o
a - objs/ApplicationLib/HelloTest.o
a - objs/ApplicationLib/MockDocumentationTest.o
a - objs/ApplicationLib/Printer.o
a - objs/ApplicationLib/PrinterTest.o
a - objs/ApplicationLib/hello.o
Linking CppUTestExamples_tests
Undefined symbols for architecture x86_64:
"_main", referenced from:
start in crt1.10.6.o
"mock(SimpleString const&)", referenced from:
TEST_EventDispatcher_EventWithRegistrationForEventResultsIntoCallback_Test::testBody() in libCppUTestExamples.a(EventDispatcherTest.o)
TEST_EventDispatcher_RegisterTwoObserversResultIntoTwoCallsAndARegistrationNotification_Test::testBody() in libCppUTestExamples.a(EventDispatcherTest.o)
TEST_GROUP_CppUTestGroupEventDispatcher::setup() in libCppUTestExamples.a(EventDispatcherTest.o)
TEST_GROUP_CppUTestGroupEventDispatcher::teardown() in libCppUTestExamples.a(EventDispatcherTest.o)
ObserverMock::notify(Event const&, int)in libCppUTestExamples.a(EventDispatcherTest.o)
ObserverMock::notifyRegistration(EventObserver*) in libCppUTestExamples.a(EventDispatcherTest.o)
productionCode() in libCppUTestExamples.a(MockDocumentationTest.o)
...
"MockNamedValue::getIntValue() const", referenced from:
TEST_MockDocumentation_returnValue_Test::testBody() in libCppUTestExamples.a(MockDocumentationTest.o)
TEST_MockDocumentation_setData_Test::testBody() in libCppUTestExamples.a(MockDocumentationTest.o)
"MockNamedValue::~MockNamedValue()", referenced from:
TEST_MockDocumentation_returnValue_Test::testBody() in libCppUTestExamples.a(MockDocumentationTest.o)
TEST_MockDocumentation_setData_Test::testBody() in libCppUTestExamples.a(MockDocumentationTest.o)
"MockSupport::setData(SimpleString const&, int)", referenced from:
TEST_MockDocumentation_setData_Test::testBody() in libCppUTestExamples.a(MockDocumentationTest.o)
"MockSupport::setDataObject(SimpleString const&, SimpleString const&, void*)", referenced from:
TEST_MockDocumentation_setData_Test::testBody() in libCppUTestExamples.a(MockDocumentationTest.o)
"MockSupport::getData(SimpleString const&)", referenced from:
TEST_MockDocumentation_setData_Test::testBody() in libCppUTestExamples.a(MockDocumentationTest.o)
"MockNamedValue::getObjectPointer() const", referenced from:
TEST_MockDocumentation_setData_Test::testBody() in libCppUTestExamples.a(MockDocumentationTest.o)
"_mock_c", referenced from:
TEST_MockDocumentation_CInterface_Test::testBody() in libCppUTestExamples.a(MockDocumentationTest.o)
"_mock_scope_c", referenced from:
TEST_MockDocumentation_CInterface_Test::testBody() in libCppUTestExamples.a(MockDocumentationTest.o)
ld: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status
make: *** [CppUTestExamples_tests] Error 1

Answer 1

I was able to find the location of CppUTest's missing libgcov.a on my Mac running Lion.
/usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin11/4.2.1/libgcov.a
/usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin11/4.2.1/x86_64/libgcov.a
Apparently these locations aren't in the loaders default search path, so after linking the 64 bit variant to /usr/local/lib I was able to make CppUTest without a hiccup.
sudo ln -s /usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin11/4.2.1/x86_64/libgcov.a /usr/local/lib/libgcov.a
Best of luck