cmcurl: Use arch-aware CHECK_TYPE_SIZE result

Our new CHECK_TYPE_SIZE macro produces a SIZEOF_<type>_CODE value for
use in configured headers to get architecture-aware type size results.
In this commit we teach cmcurl to use the SIZEOF_<type>_CODE value to
get proper configured type sizes in OS X Universal Binaries.

Utilities/cmcurl/CMakeLists.txt

@@ -2,6 +2,9 @@ CMAKE_MINIMUM_REQUIRED(VERSION 2.4)
 IF(COMMAND CMAKE_POLICY)
   CMAKE_POLICY(SET CMP0003 NEW)
 ENDIF(COMMAND CMAKE_POLICY)
+IF(CMAKE_OSX_ARCHITECTURES)
+  CMAKE_MINIMUM_REQUIRED(VERSION 2.6.3 FATAL_ERROR)
+ENDIF(CMAKE_OSX_ARCHITECTURES)
 PROJECT(LIBCURL C)
 
 # Setup package meta-data
@@ -36,7 +39,12 @@ INCLUDE (CheckIncludeFile)
 INCLUDE (CheckIncludeFiles)
 INCLUDE (CheckLibraryExists)
 INCLUDE (CheckSymbolExists)
-INCLUDE (CheckTypeSize)
+IF(${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 2.4
+    AND CMake_SOURCE_DIR)
+  INCLUDE (${CMake_SOURCE_DIR}/Modules/CheckTypeSize.cmake)
+ELSE()
+  INCLUDE (CheckTypeSize)
+ENDIF()
 
 SET(libCurl_SRCS
   #  amigaos.c - does not build on AmigaOS
@@ -329,14 +337,6 @@ CHECK_TYPE_SIZE("long long"  SIZEOF_LONG_LONG)
 CHECK_TYPE_SIZE("long"  SIZEOF_LONG)
 CHECK_TYPE_SIZE("__int64"  SIZEOF___INT64)
 CHECK_TYPE_SIZE("time_t"  SIZEOF_TIME_T)
-IF(NOT HAVE_SIZEOF_SSIZE_T)
-  IF(SIZEOF_LONG EQUAL SIZEOF_SIZE_T)
-    SET(ssize_t long)
-  ENDIF(SIZEOF_LONG EQUAL SIZEOF_SIZE_T)
-  IF(NOT ssize_t AND SIZEOF___INT64 EQUAL SIZEOF_SIZE_T)
-    SET(ssize_t __int64)
-  ENDIF(NOT ssize_t AND SIZEOF___INT64 EQUAL SIZEOF_SIZE_T)
-ENDIF(NOT HAVE_SIZEOF_SSIZE_T)
 
 IF(HAVE_SIZEOF_LONG_LONG)
   SET(HAVE_LONGLONG 1)
@@ -723,6 +723,26 @@ ELSE(CMAKE_BUILD_CURL_SHARED)
     -DCURL_STATICLIB)
 ENDIF(CMAKE_BUILD_CURL_SHARED)
 SET(CURL_STATICLIB)
+
+# Support CheckTypeSize module from CMake 2.8.0 and lower.
+FOREACH(var
+    SIZEOF_CURL_OFF_T
+    SIZEOF_LONG
+    SIZEOF_LONG_LONG
+    SIZEOF___INT64
+    SIZEOF_SIZE_T
+    SIZEOF_TIME_T
+    )
+  IF(NOT ${var}_CODE)
+    MESSAGE("creating ${var}_CODE")
+    IF(${var})
+      SET(${var}_CODE "#define ${var} ${${var}}")
+    ELSE()
+      SET(${var}_CODE "/* #undef ${var} */")
+    ENDIF()
+  ENDIF()
+ENDFOREACH()
+
 CONFIGURE_FILE(${LIBCURL_SOURCE_DIR}/config.h.in
   ${LIBCURL_BINARY_DIR}/config.h)
 

Utilities/cmcurl/config.h.in

@@ -640,16 +640,25 @@
 #cmakedefine SEND_TYPE_RETV ${SEND_TYPE_RETV}
 
 /* The size of `curl_off_t', as computed by sizeof. */
-#cmakedefine SIZEOF_CURL_OFF_T ${SIZEOF_CURL_OFF_T}
+@SIZEOF_CURL_OFF_T_CODE@
 
 /* The size of `long', as computed by sizeof. */
-#cmakedefine SIZEOF_LONG ${SIZEOF_LONG}
+@SIZEOF_LONG_CODE@
+
+/* The size of `long long', as computed by sizeof. */
+@SIZEOF_LONG_LONG_CODE@
+
+/* The size of `__int64', as computed by sizeof. */
+@SIZEOF___INT64_CODE@
 
 /* The size of `size_t', as computed by sizeof. */
-#cmakedefine SIZEOF_SIZE_T ${SIZEOF_SIZE_T}
+@SIZEOF_SIZE_T_CODE@
+
+/* The size of `ssize_t', as computed by sizeof. */
+@SIZEOF_SSIZE_T_CODE@
 
 /* The size of `time_t', as computed by sizeof. */
-#cmakedefine SIZEOF_TIME_T ${SIZEOF_TIME_T}
+@SIZEOF_TIME_T_CODE@
 
 /* Define to 1 if you have the ANSI C header files. */
 #cmakedefine STDC_HEADERS ${STDC_HEADERS}
@@ -713,7 +722,17 @@
 #cmakedefine socklen_t ${socklen_t}
 
 /* the signed version of size_t */
-#cmakedefine ssize_t ${ssize_t}
+#ifndef SIZEOF_SSIZE_T
+# if SIZEOF_LONG == SIZEOF_SIZE_T
+   typedef long ssize_t;
+# elif SIZEOF_LONG_LONG == SIZEOF_SIZE_T
+   typedef long long ssize_t;
+# elif SIZEOF___INT64 == SIZEOF_SIZE_T
+   typedef __int64 ssize_t;
+# else
+   typedef int ssize_t;
+# endif
+#endif
 
 /* Special handling of zlib library */
 #cmakedefine CURL_SPECIAL_ZLIB_H "${CURL_SPECIAL_ZLIB_H}"