alternate distfiles per package and PHP (php-ssh2)

["Jeremy C. Reed" <reed%reedmedia.net@localhost>]

I didn't see any different packages for PHP modules in the case some 
support only php 5 and others php 6 for example.

Any examples of using alternate distfiles per package?
Or should it use a different package directory and name for each?

Different php versions don't appear to be allowed to be installed at 
same time, so having different package may not make sense, but allowing 
available binary packages for both would be useful.

Anyways, see patch below to simply upgrade security/php-ssh2 to work 
with php 7.0 (I didn't test with 7.1 nor 5.x, but I read that it is only 
for php 7.)

cvs diff: Diffing .
Index: Makefile
===================================================================
RCS file: /cvsroot/pkgsrc/security/php-ssh2/Makefile,v
retrieving revision 1.6
diff -u -r1.6 Makefile
--- Makefile	11 Sep 2016 17:03:27 -0000	1.6
+++ Makefile	28 Sep 2016 20:01:20 -0000
@@ -2,18 +2,21 @@
 #
 
 MODNAME=		ssh2
-PECL_VERSION=		0.12
-PKGREVISION=		3
+# 0.13 and below is php 5
+# 1.0 and above is php 7
+PECL_VERSION=		1.0
+# 1.0 is said to be alpha state
 CATEGORIES+=		security
 
 MAINTAINER=		filip%joyent.com@localhost
-HOMEPAGE=		http://www.libssh2.org/
+HOMEPAGE=		https://pecl.php.net/package/ssh2
 COMMENT=		PHP bindings to the functions of libssh2
 LICENSE=		php
 
 CONFLICTS=		php-ssh2-[0-9]*
 
-PHP_VERSIONS_ACCEPTED=	56
+#PHP_VERSIONS_ACCEPTED=	56
+PHP_VERSIONS_ACCEPTED=	70 71
 
 CONFIGURE_ARGS+=	--with-ssh2=${PREFIX}
 #WRKSRC=			${WRKDIR}/${MODNAME}-${PECL_VERSION}
Index: distinfo
===================================================================
RCS file: /cvsroot/pkgsrc/security/php-ssh2/distinfo,v
retrieving revision 1.2
diff -u -r1.2 distinfo
--- distinfo	4 Nov 2015 01:18:01 -0000	1.2
+++ distinfo	28 Sep 2016 20:01:20 -0000
@@ -1,6 +1,6 @@
 $NetBSD: distinfo,v 1.2 2015/11/04 01:18:01 agc Exp $
 
-SHA1 (php-ssh2/ssh2-0.12.tgz) = 
b86a25bdd3f3558bbcaaa6d876309fbbb5ae134d
-RMD160 (php-ssh2/ssh2-0.12.tgz) = 
ecf60b0c19541c947b4e092259b2ab71fc0f5a3a
-SHA512 (php-ssh2/ssh2-0.12.tgz) = 
e48f8051f9234841bb0fc10594dcd90badf2d880d75c4bd59f847e3d4276e9fdd3fe71c1c01c07fb9f552cec470f3dbac6ae1db4d33e5793d3988ea5bac1d5bd
-Size (php-ssh2/ssh2-0.12.tgz) = 26223 bytes
+SHA1 (php-ssh2/ssh2-1.0.tgz) = 22db54564e6f5f0e3bd3c10f19bbbab89a7a4300
+RMD160 (php-ssh2/ssh2-1.0.tgz) = 
cbf26335b2378c3ae4ae7a89961a10a2922a6867
+SHA512 (php-ssh2/ssh2-1.0.tgz) = 
9e21b4d5d640f595ff812c341387cd51917aed2df00bb8c94ff7e494953a3599dc1cbfa6f04248f3145fc1b097fcf6c066710c8f2a41e565a3f57cad999877f9
+Size (php-ssh2/ssh2-1.0.tgz) = 29013 bytes