Synopsis: Building libiconv-dependent fails on Linux because of unset default USE_BUILTIN.iconv value

State-Changed-From-To: open->feedback
State-Changed-By: jlam@netbsd.org
State-Changed-When: Sun, 12 Jun 2005 09:59:58 +0000
State-Changed-Why:
The libiconv builtin.mk file was modified as part of the massive builtin.mk
file cleanup on June 1st so treat glibc's iconv as good enough to use, and
causes USE_BUILTIN.iconv to be set to "yes".  Please let me know if this
fixes the build of php-iconv.  Thanks!