Get rid of /proc dependency.

PR:	ports/181659
Submitted by:	Jan Beich <jbeich at tormail dot org>

devel/android-tools-adb/Makefile

@@ -2,6 +2,7 @@
 
 PORTNAME=	android-tools-adb
 PORTVERSION=	4.3
+PORTREVISION=	1
 CATEGORIES=	devel
 DISTNAME=	android-platform_system_core-${GH_COMMIT}
 

devel/android-tools-adb/files/patch-get_my_path_freebsd.c

@@ -0,0 +1,30 @@
+--- get_my_path_freebsd.c.orig	2013-09-03 17:33:27.000000000 +0800
++++ get_my_path_freebsd.c	2013-09-03 17:41:13.000000000 +0800
+@@ -18,19 +18,18 @@
+  */
+ 
+ #include <sys/types.h>
++#include <sys/sysctl.h>
+ #include <unistd.h>
+-#include <limits.h>
+-#include <stdio.h>
+ 
+ void
+ get_my_path(char *exe, size_t maxLen)
+ {
+-    char proc[64];
++    int mib[4] = {
++        CTL_KERN,
++        KERN_PROC,
++        KERN_PROC_PATHNAME,
++        getpid()
++    };
+ 
+-    snprintf(proc, sizeof(proc), "/proc/%d/file", getpid());
+-
+-    int err = readlink(proc, exe, maxLen - 1);
+-
+-    exe[err > 0 ? err : 0] = '\0';
++    sysctl(mib, 4, exe, &maxLen, NULL, 0);
+ }
+-