CMake: support "make ssl-opt" to just build what ssl-opt.sh needs

This also suffices for compat.sh.

Include the sample programs in this build. They aren't tested by ssl-opt.sh
yet, but they soon will be.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

programs/CMakeLists.txt

@@ -1,6 +1,9 @@
 set(programs_target "${MBEDTLS_TARGET_PREFIX}programs")
 add_custom_target(${programs_target})
 
+set(ssl_opt_target "${MBEDTLS_TARGET_PREFIX}ssl-opt")
+add_custom_target(${ssl_opt_target})
+
 add_subdirectory(aes)
 add_subdirectory(cipher)
 if (NOT WIN32)

programs/ssl/CMakeLists.txt

@@ -17,6 +17,7 @@ set(executables
     ssl_server2
 )
 add_dependencies(${programs_target} ${executables})
+add_dependencies(${ssl_opt_target} ${executables})
 
 if(GEN_FILES)
     # Inform CMake that the following file will be generated as part of the build

programs/test/CMakeLists.txt

@@ -9,6 +9,7 @@ set(executables_libs
     udp_proxy
 )
 add_dependencies(${programs_target} ${executables_libs})
+add_dependencies(${ssl_opt_target} udp_proxy)
 
 set(executables_mbedcrypto
     benchmark
@@ -16,6 +17,7 @@ set(executables_mbedcrypto
     zeroize
 )
 add_dependencies(${programs_target} ${executables_mbedcrypto})
+add_dependencies(${ssl_opt_target} query_compile_time_config)
 
 if(TEST_CPP)
     set(cpp_dummy_build_cpp "${CMAKE_CURRENT_BINARY_DIR}/cpp_dummy_build.cpp")