Moved potential inclusion of system's malloc.h and memory.h header files to

setup_once.h.  Inclusion of each header file is based on the definition of
NEED_MALLOC_H and NEED_MEMORY_H respectively.

CHANGES

@@ -1,5 +1,10 @@
   Changelog for the c-ares project
 
+* April 21 2009 (Yang Tse)
+- Moved potential inclusion of system's malloc.h and memory.h header files to
+  setup_once.h.  Inclusion of each header file is based on the definition of
+  NEED_MALLOC_H and NEED_MEMORY_H respectively.
+
 * March 11 2009 (Yang Tse)
 - Japheth Cleaver fixed acountry.c replacing u_long with unsigned long.
 

acinclude.m4

@@ -360,6 +360,58 @@ AC_DEFUN([CURL_CHECK_HEADER_MALLOC], [
 ])
 
 
+dnl CURL_CHECK_HEADER_MEMORY
+dnl -------------------------------------------------
+dnl Check for compilable and valid memory.h header,
+dnl and check if it is needed even with stdlib.h for
+dnl memory related functions.
+
+AC_DEFUN([CURL_CHECK_HEADER_MEMORY], [
+  AC_CACHE_CHECK([for memory.h], [ac_cv_header_memory_h], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#include <memory.h>
+      ]],[[
+        void *p = malloc(10);
+        void *q = calloc(10,10);
+        free(p);
+        free(q);
+      ]])
+    ],[
+      ac_cv_header_memory_h="yes"
+    ],[
+      ac_cv_header_memory_h="no"
+    ])
+  ])
+  if test "$ac_cv_header_memory_h" = "yes"; then
+    AC_DEFINE_UNQUOTED(HAVE_MEMORY_H, 1,
+      [Define to 1 if you have the memory.h header file.])
+    #
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#include <stdlib.h>
+      ]],[[
+        void *p = malloc(10);
+        void *q = calloc(10,10);
+        free(p);
+        free(q);
+      ]])
+    ],[
+      curl_cv_need_header_memory_h="no"
+    ],[
+      curl_cv_need_header_memory_h="yes"
+    ])
+    #
+    case "$curl_cv_need_header_memory_h" in
+      yes)
+        AC_DEFINE_UNQUOTED(NEED_MEMORY_H, 1,
+          [Define to 1 if you need the memory.h header file even with stdlib.h])
+        ;;
+    esac
+  fi
+])
+
+
 dnl CURL_CHECK_TYPE_SOCKLEN_T
 dnl -------------------------------------------------
 dnl Check for existing socklen_t type, and provide

ares_init.c

@@ -1,7 +1,7 @@
 /* $Id$ */
 
 /* Copyright 1998 by the Massachusetts Institute of Technology.
- * Copyright (C) 2007-2008 by Daniel Stenberg
+ * Copyright (C) 2007-2009 by Daniel Stenberg
  *
  * Permission to use, copy, modify, and distribute this
  * software and its documentation for any purpose and without
@@ -20,7 +20,6 @@
 
 #if defined(WIN32) && !defined(WATT32)
 #include <iphlpapi.h>
-#include <malloc.h>
 #endif
 
 #ifdef HAVE_SYS_PARAM_H

configure.ac

@@ -430,6 +430,7 @@ dnl Checks for header files.
 AC_HEADER_STDC
 
 CURL_CHECK_HEADER_MALLOC
+CURL_CHECK_HEADER_MEMORY
 
 dnl check for a few basic system headers we need
 AC_CHECK_HEADERS(

setup_once.h

@@ -42,6 +42,14 @@
 #include <sys/types.h>
 #endif
 
+#ifdef NEED_MALLOC_H
+#include <malloc.h>
+#endif
+
+#ifdef NEED_MEMORY_H
+#include <memory.h>
+#endif
+
 #ifdef HAVE_SYS_STAT_H
 #include <sys/stat.h>
 #endif