FreeBSD Port: php5-mbstring-5.1.1

[Dale Jung]

I tried installing the port on a FreeBSD 5.4 x86_64 bit server. I got the
following error and haven't found any fix online:

/usr/include/varargs.h:34:2: #error " is obsolete with this version of GCC."
/usr/include/varargs.h:35:2: #error "Change your code to use instead."
/usr/ports/converters/php5-mbstring/work/php-5.1.1/ext/mbstring/oniguruma/regerror.c:
In function `onig_error_code_to_str':
/usr/ports/converters/php5-mbstring/work/php-5.1.1/ext/mbstring/oniguruma/regerror.c:194:
error: syntax error before "va_dcl"
/usr/ports/converters/php5-mbstring/work/php-5.1.1/ext/mbstring/oniguruma/regerror.c:202:
error: syntax error before "va_start"
/usr/ports/converters/php5-mbstring/work/php-5.1.1/ext/mbstring/oniguruma/regerror.c:269:
error: syntax error before "va_dcl"
/usr/ports/converters/php5-mbstring/work/php-5.1.1/ext/mbstring/oniguruma/regerror.c:273:
error: redefinition of parameter 's'
/usr/ports/converters/php5-mbstring/work/php-5.1.1/ext/mbstring/oniguruma/regerror.c:192:
error: previous definition of 's' was here
/usr/ports/converters/php5-mbstring/work/php-5.1.1/ext/mbstring/oniguruma/regerror.c:277:
error: syntax error before "va_start"
*** Error code 1

Stop in /usr/ports/converters/php5-mbstring/work/php-5.1.1/ext/mbstring.
*** Error code 1

Stop in /usr/ports/converters/php5-mbstring.

This server is only 2 days old. I've documented everything I've done at
BeastieBlog.com. Any fix or workaround would be appreciated.

Thanks,
Dale Jung