winmm: Avoid casting return value of Heap(Re)Alloc calls.

[Dan Kegel]

2011/10/22 Frédéric Delanoy <frederic.delanoy at gmail.com>:
> OK thx. Should probably restructure that section as well (and add
> -Werror to my CFLAGS)

How would people feel if configure turned on -Werror
when it's safe to if building from git?  Something like this:

--- a/configure.ac
+++ b/configure.ac
@@ -1715,6 +1715,16 @@ then
   if test "x$enable_maintainer_mode" = "xyes"
   then
       WINE_TRY_CFLAGS([-Werror])
+  else
+    dnl Enable -Werror when building from git on 32 bit x86 with gcc
+    case $host_cpu in
+      *i[[3456789]]86*)
+        if test "x${GCC}" = "xyes" && test -d $srcdir/.git
+        then
+          WINE_TRY_CFLAGS([-Werror])
+        fi
+      ;;
+    esac
   fi

   dnl Check for ms_hook_prologue support