64bit support has been improved with 'tgmath.h' header.

Author: maximkhatskevich

OHAttributedLabel/Source/NSAttributedString+Attributes.m

@@ -27,6 +27,8 @@
 
 #import "NSAttributedString+Attributes.h"
 
+#include <tgmath.h>
+
 #if ! defined(COCOAPODS) && ! defined(OHATTRIBUTEDLABEL_DEDICATED_PROJECT)
 // Copying files in your project and thus compiling OHAttributedLabel under different build settings
 // than the one provided is not recommended and increase risks of leaks (mixing ARC vs. MRC) or unwanted behaviors
@@ -348,7 +350,9 @@ -(void)setCharacterSpacing:(CGFloat)chracterSpacing
 }
 -(void)setCharacterSpacing:(CGFloat)chracterSpacing range:(NSRange)range
 {
-    [self addAttribute:(NSString *)kCTKernAttributeName value:[NSNumber numberWithDouble:chracterSpacing] range:range];
+    [self addAttribute:(NSString *)kCTKernAttributeName
+                 value:@(chracterSpacing) // http://stackoverflow.com/a/17067994
+                 range:range];
 }
 
 -(void)modifyParagraphStylesWithBlock:(void(^)(OHParagraphStyle* paragraphStyle))block

OHAttributedLabel/Source/OHAttributedLabel.m

@@ -29,6 +29,8 @@
 #import "CoreTextUtils.h"
 #import "OHTouchesGestureRecognizer.h"
 
+#include <tgmath.h>
+
 #ifndef OHATTRIBUTEDLABEL_WARN_ABOUT_KNOWN_ISSUES
 #define OHATTRIBUTEDLABEL_WARN_ABOUT_KNOWN_ISSUES 1
 #endif

OHAttributedLabel/Source/OHTouchesGestureRecognizer.m

@@ -29,6 +29,8 @@
 
 #import <UIKit/UIGestureRecognizerSubclass.h>
 
+#include <tgmath.h>
+
 @interface OHTouchesGestureRecognizer ()
 
 @property (nonatomic, assign) CGPoint startPoint;