Some fixes to compile in OS X and iOS standalone targets.

Recover libxml headers in OS X target. While including libffi as Cocoapod I
must have forgot to include this back in the OS X target (it is there in the
iOS target).

A couple of imports to avoid warnings and to correctly compile in iOS.

Marking the temporal allocations array of the closure as unused and with
precise lifetime. The unused is necessary to avoid a warning, the precise
lifetime might not be necessary, but I fear the optimizer might optimize the
variable away and break everything.

(appsquickly#102)

Source/Component/FactoryProvider/TyphoonAssistedFactoryMethodBlockCreator.h

@@ -11,7 +11,7 @@
 
 #import "TyphoonAssistedFactoryMethodCreator.h"
 
-@class TyphoonAssistedFactoryMethodBlock;
+#import "TyphoonAssistedFactoryMethodBlock.h"
 
 
 @interface TyphoonAssistedFactoryMethodBlockCreator : TyphoonAssistedFactoryMethodCreator

Source/Component/FactoryProvider/TyphoonAssistedFactoryMethodClosure.m

@@ -12,6 +12,11 @@
 #import "TyphoonAssistedFactoryMethodClosure.h"
 
 #include <ffi.h>
+#include <objc/message.h>
+
+#if TARGET_OS_IPHONE
+#import <UIKit/UIKit.h>
+#endif
 
 #import "TyphoonAssistedFactoryMethodInitializer.h"
 #import "TyphoonAssistedFactoryParameterInjectedWithArgumentIndex.h"
@@ -35,7 +40,7 @@ static void FactoryMethodClosure(ffi_cif *cif, void *ret, void **args, void *use
     TyphoonAssistedFactoryMethodClosure *closure = (__bridge TyphoonAssistedFactoryMethodClosure *)userdata;
 
     void **arguments = calloc(closure->_parameters.count + 2, sizeof(void *));
-    NSArray *tempAllocations = [closure prepareArgumentsWithValues:args into:arguments];
+    __unused __attribute__((objc_precise_lifetime)) NSArray *tempAllocations = [closure prepareArgumentsWithValues:args into:arguments];
     ffi_call(&(closure->_initCIF), FFI_FN(objc_msgSend), ret, arguments);
     free(arguments);
     tempAllocations = nil;

Typhoon.xcodeproj/project.pbxproj

@@ -1422,6 +1422,10 @@
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = Source/Typhoon.pch;
 				HEADER_SEARCH_PATHS = "${SDKROOT}/usr/include/libxml2";
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(SDKROOT)/usr/include/libxml2",
+				);
 				OTHER_LDFLAGS = "";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SUPPORTED_PLATFORMS = "macosx iphonesimulator iphoneos";
@@ -1441,6 +1445,10 @@
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = Source/Typhoon.pch;
 				HEADER_SEARCH_PATHS = "${SDKROOT}/usr/include/libxml2";
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(SDKROOT)/usr/include/libxml2",
+				);
 				OTHER_LDFLAGS = "";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SUPPORTED_PLATFORMS = "macosx iphonesimulator iphoneos";