package icu4c: fix host detection and 64-bit name mangling

src/icu4c-3-detect-host.patch

@@ -0,0 +1,15 @@
+This file is part of MXE.
+See index.html for further information.
+
+diff -ur icu.orig/source/acinclude.m4 icu/source/acinclude.m4
+--- icu.orig/source/acinclude.m4	2014-04-20 22:05:23.000000000 +1000
++++ icu/source/acinclude.m4	2014-04-20 22:06:17.000000000 +1000
+@@ -32,7 +32,7 @@
+ 		icu_cv_host_frag=mh-linux-va
+ 	fi ;;
+ *-*-linux*|*-*-gnu|*-*-k*bsd*-gnu|*-*-kopensolaris*-gnu) icu_cv_host_frag=mh-linux ;;
+-*-*-cygwin|*-*-mingw32|*-*-mingw64)
++*-*-cygwin|*-*-mingw*)
+ 	if test "$GCC" = yes; then
+ 		AC_TRY_COMPILE([
+ #ifndef __MINGW32__

src/icu4c.mk

@@ -19,6 +19,7 @@ define $(PKG)_UPDATE
 endef
 
 define $(PKG)_BUILD_SHARED
+    cd '$(1)/source' && autoreconf -fi
     mkdir '$(1).native' && cd '$(1).native' && '$(1)/source/configure' \
         CC=gcc CXX=g++
     $(MAKE) -C '$(1).native' -j '$(JOBS)'
@@ -26,7 +27,6 @@ define $(PKG)_BUILD_SHARED
     mkdir '$(1).cross' && cd '$(1).cross' && '$(1)/source/configure' \
         $(MXE_CONFIGURE_OPTS) \
         --with-cross-build='$(1).native' \
-        icu_cv_host_frag=mh-mingw \
         CFLAGS=-DU_USING_ICU_NAMESPACE=0 \
         CXXFLAGS='--std=gnu++0x' \
         SHELL=bash