apr: Specify correct sizeof(struct iovec)

Also bump package revision

packages/apr/build.sh

@@ -1,6 +1,6 @@
 TERMUX_PKG_HOMEPAGE=https://apr.apache.org/
 TERMUX_PKG_VERSION=1.6.2
-TERMUX_PKG_REVISION=1
+TERMUX_PKG_REVISION=2
 TERMUX_PKG_SRCURL=http://apache.mirrors.spacedump.net/apr/apr-${TERMUX_PKG_VERSION}.tar.bz2
 TERMUX_PKG_SHA256=09109cea377bab0028bba19a92b5b0e89603df9eab05c0f7dbd4dd83d48dcebd
 TERMUX_PKG_DESCRIPTION="Apache Portable Runtime - library providing a predictable and consistent interface to underlying platform-specific implementations"
@@ -13,7 +13,7 @@ ac_cv_file__dev_zero=yes
 ac_cv_func_setpgrp_void=yes
 apr_cv_process_shared_works=no
 apr_cv_tcp_nodelay_with_cork=yes
-ac_cv_sizeof_struct_iovec=8
+ac_cv_sizeof_struct_iovec=$(( TERMUX_ARCH_BITS==32 ? 8 : 16 ))
 ac_cv_search_crypt="
 TERMUX_PKG_INCLUDE_IN_DEVPACKAGE="bin/apr-1-config share/apr-1/build"
 TERMUX_PKG_RM_AFTER_INSTALL="lib/apr.exp"