Applied this recommendations: https://developer.apple.com/library/ios/#technotes/iOSStaticLibraries/Introduction.html

Added .pch file speed up compilation time.

Author: Vyazovoy

MBProgressHUD-Prefix.pch

@@ -0,0 +1,15 @@
+//
+// Prefix header for all source files of the 'MBProgressHUD' target in the 'MBProgressHUD' project
+//
+
+#import <Availability.h>
+
+#ifndef __IPHONE_3_0
+#warning "This project uses features only available in iOS SDK 3.0 and later."
+#endif
+
+#ifdef __OBJC__
+    #import <UIKit/UIKit.h>
+    #import <Foundation/Foundation.h>
+    #import <CoreGraphics/CoreGraphics.h>
+#endif

MBProgressHUD.xcodeproj/project.pbxproj

@@ -7,14 +7,28 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		1315DD7617804CBC0032507D /* MBProgressHUD.h in CopyFiles */ = {isa = PBXBuildFile; fileRef = D286A7511518C70F00E13FB8 /* MBProgressHUD.h */; };
 		D286A74D1518C70F00E13FB8 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D286A74C1518C70F00E13FB8 /* Foundation.framework */; };
 		D286A7531518C70F00E13FB8 /* MBProgressHUD.m in Sources */ = {isa = PBXBuildFile; fileRef = D286A7521518C70F00E13FB8 /* MBProgressHUD.m */; };
 		D286A75E1518C89600E13FB8 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D286A75D1518C89600E13FB8 /* UIKit.framework */; };
 		D286A76F1518CAAD00E13FB8 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D286A76E1518CAAD00E13FB8 /* CoreGraphics.framework */; };
-		D286A7851518CBEE00E13FB8 /* MBProgressHUD.h in Headers */ = {isa = PBXBuildFile; fileRef = D286A7511518C70F00E13FB8 /* MBProgressHUD.h */; settings = {ATTRIBUTES = (Public, ); }; };
 /* End PBXBuildFile section */
 
+/* Begin PBXCopyFilesBuildPhase section */
+		1315DD7517804C970032507D /* CopyFiles */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "include/${PRODUCT_NAME}";
+			dstSubfolderSpec = 16;
+			files = (
+				1315DD7617804CBC0032507D /* MBProgressHUD.h in CopyFiles */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
 /* Begin PBXFileReference section */
+		1315DD73178045000032507D /* MBProgressHUD-Prefix.pch */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "MBProgressHUD-Prefix.pch"; sourceTree = SOURCE_ROOT; };
 		D286A7491518C70F00E13FB8 /* libMBProgressHUD.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = libMBProgressHUD.a; sourceTree = BUILT_PRODUCTS_DIR; };
 		D286A74C1518C70F00E13FB8 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
 		D286A7511518C70F00E13FB8 /* MBProgressHUD.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = MBProgressHUD.h; sourceTree = SOURCE_ROOT; };
@@ -28,15 +42,23 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				D286A76F1518CAAD00E13FB8 /* CoreGraphics.framework in Frameworks */,
 				D286A75E1518C89600E13FB8 /* UIKit.framework in Frameworks */,
 				D286A74D1518C70F00E13FB8 /* Foundation.framework in Frameworks */,
+				D286A76F1518CAAD00E13FB8 /* CoreGraphics.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
+		1315DD72178044770032507D /* Supporting Files */ = {
+			isa = PBXGroup;
+			children = (
+				1315DD73178045000032507D /* MBProgressHUD-Prefix.pch */,
+			);
+			name = "Supporting Files";
+			sourceTree = "<group>";
+		};
 		D286A73E1518C70E00E13FB8 = {
 			isa = PBXGroup;
 			children = (
@@ -57,9 +79,9 @@
 		D286A74B1518C70F00E13FB8 /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
-				D286A76E1518CAAD00E13FB8 /* CoreGraphics.framework */,
 				D286A75D1518C89600E13FB8 /* UIKit.framework */,
 				D286A74C1518C70F00E13FB8 /* Foundation.framework */,
+				D286A76E1518CAAD00E13FB8 /* CoreGraphics.framework */,
 			);
 			name = Frameworks;
 			sourceTree = "<group>";
@@ -69,31 +91,21 @@
 			children = (
 				D286A7511518C70F00E13FB8 /* MBProgressHUD.h */,
 				D286A7521518C70F00E13FB8 /* MBProgressHUD.m */,
+				1315DD72178044770032507D /* Supporting Files */,
 			);
 			path = MBProgressHUD;
 			sourceTree = "<group>";
 		};
 /* End PBXGroup section */
 
-/* Begin PBXHeadersBuildPhase section */
-		D286A7471518C70F00E13FB8 /* Headers */ = {
-			isa = PBXHeadersBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				D286A7851518CBEE00E13FB8 /* MBProgressHUD.h in Headers */,
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXHeadersBuildPhase section */
-
 /* Begin PBXNativeTarget section */
 		D286A7481518C70F00E13FB8 /* MBProgressHUD */ = {
 			isa = PBXNativeTarget;
 			buildConfigurationList = D286A7561518C70F00E13FB8 /* Build configuration list for PBXNativeTarget "MBProgressHUD" */;
 			buildPhases = (
 				D286A7451518C70F00E13FB8 /* Sources */,
 				D286A7461518C70F00E13FB8 /* Frameworks */,
-				D286A7471518C70F00E13FB8 /* Headers */,
+				1315DD7517804C970032507D /* CopyFiles */,
 			);
 			buildRules = (
 			);
@@ -148,7 +160,10 @@
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++0x";
+				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
@@ -175,7 +190,10 @@
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++0x";
+				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
@@ -195,12 +213,10 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				DSTROOT = /tmp/MBProgressHUD.dst;
-				GCC_PRECOMPILE_PREFIX_HEADER = NO;
-				GCC_PREFIX_HEADER = "";
-				INSTALL_PATH = "$(BUILT_PRODUCTS_DIR)";
+				GCC_PRECOMPILE_PREFIX_HEADER = YES;
+				GCC_PREFIX_HEADER = "MBProgressHUD-Prefix.pch";
 				OTHER_LDFLAGS = "-ObjC";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				PUBLIC_HEADERS_FOLDER_PATH = "include/$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 			};
 			name = Debug;
@@ -209,12 +225,10 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				DSTROOT = /tmp/MBProgressHUD.dst;
-				GCC_PRECOMPILE_PREFIX_HEADER = NO;
-				GCC_PREFIX_HEADER = "";
-				INSTALL_PATH = "$(BUILT_PRODUCTS_DIR)";
+				GCC_PRECOMPILE_PREFIX_HEADER = YES;
+				GCC_PREFIX_HEADER = "MBProgressHUD-Prefix.pch";
 				OTHER_LDFLAGS = "-ObjC";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				PUBLIC_HEADERS_FOLDER_PATH = "include/$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 			};
 			name = Release;