diff --git a/ChangeLog b/ChangeLog
index 7b07c41a8..3f16d8764 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2007-12-06  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
+
+	The documents and comments for Mac OS X are improved by Sean
+	McBride.
+
+	* src/base/ftmac.c: Fix a comment.
+	* include/freetype/ftmac.h: Ditto.
+	* docs/INSTALL.MAC: Improve English and add comment on lowest
+	system version specified by MACOSX_DEPLOYMENT_TARGET.
+
 2007-12-04  Werner Lemberg  <wl@gnu.org>
 
 	* src/cff/cffload.c (cff_subfont_load): Don't use logical OR to
diff --git a/docs/INSTALL.MAC b/docs/INSTALL.MAC
index 91d8cf069..bc7f0e836 100644
--- a/docs/INSTALL.MAC
+++ b/docs/INSTALL.MAC
@@ -1,19 +1,26 @@
 Please follow the instructions  in INSTALL.UNIX to install FreeType on
 Mac OS X.
 
-Since Mac OS X 10.5, when environment variable MACOSX_DEPLOYMENT_TARGET
-is not given, Apple's diversion of gcc configures the conditional macros
-to Mac OS X 10.5 and newer. If you want to use the built binaries on
-older platforms, you must set the variable to the lowest system you care.
-For example, if you are working on Bourne shell,
+Starting with Mac OS X 10.5, gcc defaults the deployment target
+to 10.5. In previous versions of Mac OS X, this defaulted to 10.1.
+If you want your built binaries to run only on 10.5, this change
+does not concern you.  If you want them to also run on older versions
+of Mac OS X, then you must either set the MACOSX_DEPLOYMENT_TARGET
+environment variable or pass -mmacosx-version-min to gcc. You should
+specify the oldest version of Mac OS you want the code to run on.
+For example, if you use Bourne shell:
 
-	export MACOSX_DEPLOYMENT_TARGET=10.0
+	export MACOSX_DEPLOYMENT_TARGET=10.2
 
-or, if you are working on C shell,
+or, if you use C shell:
 
-	setenv MACOSX_DEPLOYMENT_TARGET 10.0
+	setenv MACOSX_DEPLOYMENT_TARGET 10.2
 
-makes gcc to configure the conditional macros to 10.0-capable values.
+Alternatively, you could pass "-mmacosx-version-min=10.2" to gcc.
 
+Here the number 10.2 is the lowest version that the built binaries
+can run on. In the cases in above, the built binaries will run on
+Mac OS X 10.2 and later, but _not_ earlier. If you want to run on
+earlier, you have to set lower version, e.g. 10.0.
 
 For classic Mac OS (Mac OS 7, 8, 9) please refer to builds/mac/README.
diff --git a/include/freetype/ftmac.h b/include/freetype/ftmac.h
index 0355bb5a1..1752d132a 100644
--- a/include/freetype/ftmac.h
+++ b/include/freetype/ftmac.h
@@ -18,9 +18,9 @@
 
 /***************************************************************************/
 /*                                                                         */
-/* NOTE: Include this file after <freetype/freetype.h> and after the       */
-/*       Mac-specific <Types.h> header (or any other Mac header that       */
-/*       includes <Types.h>); we use Handle type.                          */
+/* NOTE: Include this file after <freetype/freetype.h> and after any       */
+/*       Mac-specific headers (because this header uses Mac types such as  */
+/*       Handle, FSSpec, FSRef, etc.)                                      */
 /*                                                                         */
 /***************************************************************************/
 
diff --git a/src/base/ftmac.c b/src/base/ftmac.c
index fd8e19a79..a95b93aaf 100644
--- a/src/base/ftmac.c
+++ b/src/base/ftmac.c
@@ -77,7 +77,7 @@
 #define OS_INLINE  static __inline__
 #endif
 
-/* Some portable types are unavailable on legacy SDKs */
+  /* The ResourceIndex type was only added in the 10.5 SDK */
 #ifndef MAC_OS_X_VERSION_10_5
 typedef	short	ResourceIndex;
 #endif