Update srm from 1.2.8 to 1.2.15

pkgsrc changes:
 - set LICENSE (x11)
 - add test target
 - add new NetBSD patches
 - keep INTERIX patch, not tested

Upstream changelog
==================
release 1.2.15
        fix handling of files > 2GB on Windows.
        fix handling of symlinks to files owned by root.

release 1.2.14
        fix fill() function, this fixes DoE and Gutmann modes.
        new --rcmp mode.
        use simple mode by default and not Gutmann 35 pass.

release 1.2.13
        fix handling of OsX resource forks.

release-1_2_12
        now using SVN on SourceForge.
        small updates to autotools build files.
        support Haiku operating system.
        overwrite POSIX extended attributes.
        srm has exit code != 0 if removing any file or directory failed.
        handle alternate data streams on Windows and NTFS.
        handle hard links on Windows and NTFS.

release-1_2_11
        Win32 command line wildcard expansion
        -v -v displays current write position
        SIGINFO, SIGUSR2 display current write position
        -x does not cross file system boundaries
        overwrite block devices

release-1_2_10
        Mac OsX compiles and works again
        add DoE wipe mode
        fix deletion of named pipes/fifos
        Debian fixes
        Win32 fixes

release-1_2_9
        fix deletion of 0 byte files
        fix handling of files <4096 bytes
        fix handling of files >2GiB on 32bit
        OpenBSD compat switch
        handle OsX ressource fork
        added some code from OsX port
        Win32 version


(kamil)

$NetBSD: patch-src_sunlink.c,v 1.1 2016/10/27 19:49:44 kamil Exp $

Add NetBSD support.

--- src/sunlink.c.orig	2015-02-26 16:12:02.000000000 +0000
+++ src/sunlink.c
@@ -105,7 +105,7 @@ static volatile int SIGINT_received = 0;
 #if defined(__linux__) && !defined(__USE_GNU)
 typedef __sighandler_t sighandler_t;
 #endif
-#if defined(__FreeBSD__) || defined(__OpenBSD__)
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
 typedef sig_t sighandler_t;
 #endif
 
@@ -837,8 +837,13 @@ next_ads:
 
 #if defined(HAVE_SYS_VFS_H) || (defined(HAVE_SYS_PARAM_H) && defined(HAVE_SYS_MOUNT_H))
   {
+#if defined(__NetBSD__)
+    struct statvfs fs_stats;
+    if (fstatvfs(srm.fd, &fs_stats) < 0 && errno != ENOSYS)
+#else
     struct statfs fs_stats;
     if (fstatfs(srm.fd, &fs_stats) < 0 && errno != ENOSYS)
+#endif
       {
 	int e=errno;
 	close(srm.fd);
@@ -848,7 +853,7 @@ next_ads:
 
 #if defined(__linux__)
     srm.buffer_size = fs_stats.f_bsize;
-#elif defined(__FreeBSD__) || defined(__APPLE__)
+#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__APPLE__)
     srm.buffer_size = fs_stats.f_iosize;
 #else
 #error Please define your platform.
@@ -907,6 +912,7 @@ next_ads:
    and catch only platforms supporting NOUNLINK here.
 
    OpenBSD - doesn't support nounlink (As of 3.1)
+   NetBSD  - doesn't support nounlink (as of 7.99.41)
    FreeBSD - supports nounlink (from 4.4 on?)
    Tru64   - unknown
    MacOS X - doesn't support NOUNLINK (as of 10.3.5)

$NetBSD: patch-test.sh,v 1.1 2016/10/27 19:49:44 kamil Exp $

Add NetBSD support

--- test.sh.orig	2015-02-26 16:12:02.000000000 +0000
+++ test.sh
@@ -187,7 +187,7 @@ OS=$(uname -s)
 if [ "$OS" = Linux ] ; then
     setfattr -n user.a1 -v "The value of extended attribute number 1" $FN
     setfattr -n user.num2 -v "A second attribute." $FN
-elif [ "$OS" = FreeBSD ] ; then
+elif [ "x$OS" = xFreeBSD -o "x$OS" = xNetBSD ] ; then
     setextattr user a1 "The value of extended attribute number 1" $FN
     setextattr user num2 "A second attribute." $FN
 elif [ "$OS" = Darwin ] ; then