diff --git a/doc/install.html b/doc/install.html
index b5df697b..68f49d18 100644
--- a/doc/install.html
+++ b/doc/install.html
@@ -114,30 +114,30 @@ operating systems, CPUs and compilers:
 </tr>
 <tr class="odd separate">
 <td class="compatcpu">x86 (32 bit)</td>
-<td class="compatos">GCC 4.x<br>GCC 3.4</td>
-<td class="compatos">GCC 4.x<br>GCC 3.4</td>
-<td class="compatos">GCC 4.x<br>GCC 3.4</td>
+<td class="compatos">GCC 4.x+<br>GCC 3.4</td>
+<td class="compatos">GCC 4.x+<br>GCC 3.4</td>
+<td class="compatos">XCode 5.0+<br>Clang</td>
 <td class="compatos">MSVC, MSVC/EE<br>WinSDK<br>MinGW, Cygwin</td>
 </tr>
 <tr class="even">
 <td class="compatcpu">x64 (64 bit)</td>
-<td class="compatos">GCC 4.x</td>
+<td class="compatos">GCC 4.x+</td>
 <td class="compatos">ORBIS (<a href="#ps4">PS4</a>)</td>
-<td class="compatos">GCC 4.x</td>
+<td class="compatos">XCode 5.0+<br>Clang</td>
 <td class="compatos">MSVC + SDK v7.0<br>WinSDK v7.0<br>Durango (<a href="#xboxone">Xbox One</a>)</td>
 </tr>
 <tr class="odd">
 <td class="compatcpu"><a href="#cross2">ARMv5+<br>ARM9E+</a></td>
 <td class="compatos">GCC 4.2+</td>
 <td class="compatos">GCC 4.2+<br>PSP2 (<a href="#psvita">PS VITA</a>)</td>
-<td class="compatos">GCC 4.2+</td>
+<td class="compatos">XCode 5.0+<br>Clang</td>
 <td class="compatos compatno">&nbsp;</td>
 </tr>
 <tr class="even">
 <td class="compatcpu"><a href="#cross2">ARM64</a></td>
 <td class="compatos">GCC 4.8+</td>
 <td class="compatos compatno">&nbsp;</td>
-<td class="compatos">Clang 3.5+</td>
+<td class="compatos">XCode 6.0+<br>Clang 3.5+</td>
 <td class="compatos compatno">&nbsp;</td>
 </tr>
 <tr class="odd">
@@ -442,8 +442,7 @@ NDKF="--sysroot $NDK/platforms/android-$NDKABI/arch-x86"
 make HOST_CC="gcc -m32" CROSS=$NDKP TARGET_FLAGS="$NDKF"
 </pre>
 <p>
-You can cross-compile for <b id="ios">iOS 3.0+</b> (iPhone/iPad) using the <a href="http://developer.apple.com/devcenter/ios/index.action"><span class="ext">&raquo;</span>&nbsp;iOS SDK</a>.
-The environment variables need to match the iOS SDK version:
+You can cross-compile for <b id="ios">iOS 3.0+</b> (iPhone/iPad) using the <a href="http://developer.apple.com/devcenter/ios/index.action"><span class="ext">&raquo;</span>&nbsp;iOS SDK</a>:
 </p>
 <p style="font-size: 8pt;">
 Note: <b>the JIT compiler is disabled for iOS</b>, because regular iOS Apps
@@ -453,13 +452,11 @@ much slower than the JIT compiler. Please complain to Apple, not me.
 Or use Android. :-p
 </p>
 <pre class="code">
-IXCODE=`xcode-select -print-path`
-ISDK=$IXCODE/Platforms/iPhoneOS.platform/Developer
-ISDKVER=iPhoneOS6.0.sdk
-ISDKP=$ISDK/usr/bin/
-ISDKF="-arch armv7 -isysroot $ISDK/SDKs/$ISDKVER"
-make HOST_CC="gcc -m32 -arch i386" CROSS=$ISDKP TARGET_FLAGS="$ISDKF" \
-     TARGET_SYS=iOS
+ISDKP=$(xcrun --sdk iphoneos --show-sdk-path)
+ICC=$(xcrun --sdk iphoneos --find clang)
+ISDKF="-arch armv7 -isysroot $ISDKP"
+make HOST_CC="clang -m32 -arch i386" CROSS="$(dirname $ICC)/" \
+     TARGET_FLAGS="$ISDKF" TARGET_SYS=iOS
 </pre>
 
 <h3 id="consoles">Cross-compiling for consoles</h3>
diff --git a/src/Makefile b/src/Makefile
index 532da6e9..9845f6a0 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -24,11 +24,13 @@ NODOTABIVER= 51
 # removing the '#' in front of them. Make sure you force a full recompile
 # with "make clean", followed by "make" if you change any options.
 #
+DEFAULT_CC = gcc
+#
 # LuaJIT builds as a native 32 or 64 bit binary by default.
-CC= gcc
+CC= $(DEFAULT_CC)
 #
 # Use this if you want to force a 32 bit build on a 64 bit multilib OS.
-#CC= gcc -m32
+#CC= $(DEFAULT_CC) -m32
 #
 # Since the assembler part does NOT maintain a frame pointer, it's pointless
 # to slow down the C part by not omitting it. Debugging, tracebacks and
@@ -147,6 +149,29 @@ XCFLAGS=
 # You probably don't need to change anything below this line!
 ##############################################################################
 
+##############################################################################
+# Host system detection.
+##############################################################################
+
+ifeq (Windows,$(findstring Windows,$(OS))$(MSYSTEM)$(TERM))
+  HOST_SYS= Windows
+  HOST_RM= del
+else
+  HOST_SYS:= $(shell uname -s)
+  ifneq (,$(findstring MINGW,$(HOST_SYS)))
+    HOST_SYS= Windows
+    HOST_MSYS= mingw
+  endif
+  ifneq (,$(findstring CYGWIN,$(HOST_SYS)))
+    HOST_SYS= Windows
+    HOST_MSYS= cygwin
+  endif
+  # Use Clang for OSX host.
+  ifeq (Darwin,$(HOST_SYS))
+    DEFAULT_CC= clang
+  endif
+endif
+
 ##############################################################################
 # Flags and options for host and target.
 ##############################################################################
@@ -268,24 +293,9 @@ ifneq (,$(LMULTILIB))
 endif
 
 ##############################################################################
-# System detection.
+# Target system detection.
 ##############################################################################
 
-ifeq (Windows,$(findstring Windows,$(OS))$(MSYSTEM)$(TERM))
-  HOST_SYS= Windows
-  HOST_RM= del
-else
-  HOST_SYS:= $(shell uname -s)
-  ifneq (,$(findstring MINGW,$(HOST_SYS)))
-    HOST_SYS= Windows
-    HOST_MSYS= mingw
-  endif
-  ifneq (,$(findstring CYGWIN,$(HOST_SYS)))
-    HOST_SYS= Windows
-    HOST_MSYS= cygwin
-  endif
-endif
-
 TARGET_SYS?= $(HOST_SYS)
 ifeq (Windows,$(TARGET_SYS))
   TARGET_STRIP+= --strip-unneeded