Fix clang wrapper issue on Nix

Essentially, backporting 741ebd9

Author: forGGe

default.nix

@@ -7,7 +7,7 @@ let
 in with pkgs; {
   coreEnv = stdenv.mkDerivation {
     name = "thecore";
-    buildInputs = [ cmake gcc6 cppcheck cpputest gcc-arm-embedded-5 doxygen clang openocd ];
+    buildInputs = [ cmake gcc6 cppcheck cpputest gcc-arm-embedded-5 doxygen llvmPackages.clang-unwrapped openocd ];
     shellHook = ''
         export GCC_ARM_EMBEDDED_PATH=${gcc-arm-embedded-5}
     '';

examples/cs43l22_audio/CMakeLists.txt

@@ -3,12 +3,12 @@ cmake_minimum_required(VERSION 3.2)
 # The Core framework directory.
 set(CORE_DIR ../../)
 
+# Obvious.
+project(cs43l22_audio)
+
 # Required.
 include(${CORE_DIR}/build_api.cmake)
 
-# Objvious.
-project(cs43l22_audio)
-
 # Our demo sources.
 add_executable(audio main.cpp target.cpp)
 

examples/host_hello/CMakeLists.txt

@@ -3,12 +3,12 @@ cmake_minimum_required(VERSION 3.2)
 # The Core framework directory.
 set(CORE_DIR ../../)
 
-# Required.
-include(${CORE_DIR}/build_api.cmake)
-
 # Objvious.
 project(host_hello)
 
+# Required.
+include(${CORE_DIR}/build_api.cmake)
+
 # Required flags for this demo
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")

examples/stm32f4_exti/CMakeLists.txt

@@ -3,12 +3,12 @@ cmake_minimum_required(VERSION 3.2)
 # The Core framework directory.
 set(CORE_DIR ../../)
 
+# Obvious.
+project(exti_to_uart)
+
 # Required.
 include(${CORE_DIR}/build_api.cmake)
 
-# Objvious.
-project(exti_to_uart)
-
 # Required flags for this demo
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")

lib/thread/CMakeLists.txt

@@ -4,7 +4,7 @@ if(DEFINED CONFIG_OS)
 	message(STATUS "OS selected: ${CONFIG_OS}")
 	if(CONFIG_OS STREQUAL "freertos")
 		add_subdirectory(freertos)
-	else(CONFIG_OS STREQUAL "host")
+	elseif(CONFIG_OS STREQUAL "host")
 		if(UNIX)
 			add_subdirectory(posix)
 		else()