Log message:
converters/php-iconv: multiple PHP support

Bump PKGREVISION.

Log message:
php-iconv: Overhaul iconv selection.

I noted a while back that this looked very wrong, and yes, it turns out to
be very wrong indeed, with over 70% of tests failing and php dumping core.

Simplify the selection so that the correct arguments are used for pkgsrc
libiconv as well as native iconv.  Remove confusing comments, and add the
correct TEST_TARGET while here.

Tested on SmartOS with pkgsrc libiconv, and on NetBSD and macOS with both
native iconv and pkgsrc libiconv.  It should be noted that pkgsrc libiconv
passes all tests, while both NetBSD and macOS native iconv have a number
of failures.

Bump PKGREVISION.

Log message:
php-iconv: slightly better libiconv detection on Darwin

Log message:
php-iconv: fix Darwin hack: cannot use BUILDLINK_PREFIX.iconv

Log message:
php-iconv: allow building on Darwin without Command Line Tools

Log message:
converters/php-iconv: fix dependency

Do not hardcord php-iconv's version in buildlink3.mk.

Log message:
converters/php-iconv: add buildlink3.mk

Add buildlink3.mk file for newer www/php-http3 package.

Log message:
lang/php: reset PKGREVISION

Reset PKGREVISION with updating of all lang/php* packages.

Log message:
converters/php-iconv: Install header file <ext/iconv/php_iconv.h>

Install header file ext/iconv/php_iconv.h to fix build problem of
www/php-http and www/php-http3.

Bump PKGREVISION.

Log message:
Drop superfluous PKG_DESTDIR_SUPPORT, "user-destdir" is default these days.