Description:
------------
I am creating a FreeBSD port for the phar extension. FreeBSD has one port for the core php and one port for each extension.

It seems that phar requires pcre, from the following build output:

===>  Building for php5-phar-5.3.8
/bin/sh /home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar/libtool --mode=compile cc  -I. -I/home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar -DPHP_ATOM_INC -I/home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar/include -I/home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar/main -I/home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar -I/usr/local/include/php -I/usr/local/include/php/main -I/usr/local/include/php/TSRM -I/usr/local/include/php/Zend -I/usr/local/include/php/ext -I/usr/local/include/php/ext/date/lib  -DHAVE_CONFIG_H  -O2 -pipe -march=native -fno-strict-aliasing   -c /home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar/util.c -o util.lo
mkdir .libs
 cc -I. -I/home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar -DPHP_ATOM_INC -I/home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar/include -I/home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar/main -I/home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar -I/usr/local/include/php -I/usr/local/include/php/main -I/usr/local/include/php/TSRM -I/usr/local/include/php/Zend -I/usr/local/include/php/ext -I/usr/local/include/php/ext/date/lib -DHAVE_CONFIG_H -O2 -pipe -march=native -fno-strict-aliasing -c /home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar/util.c  -fPIC -DPIC -o .libs/util.o
In file included from /usr/local/include/php/ext/spl/spl_iterators.h:27,
                 from /usr/local/include/php/ext/spl/spl_array.h:26,
                 from /home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar/phar_internal.h:59,
                 from /home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar/util.c:23:
/usr/local/include/php/ext/pcre/php_pcre.h:29:18: error: pcre.h: No such file or directory
In file included from /usr/local/include/php/ext/spl/spl_iterators.h:27,
                 from /usr/local/include/php/ext/spl/spl_array.h:26,
                 from /home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar/phar_internal.h:59,
                 from /home/build/ports/nfs/ports/archivers/php5-phar/work/php-5.3.8/ext/phar/util.c:23:
/usr/local/include/php/ext/pcre/php_pcre.h:37: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token
/usr/local/include/php/ext/pcre/php_pcre.h:38: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token
/usr/local/include/php/ext/pcre/php_pcre.h:44: error: expected specifier-qualifier-list before 'pcre'
*** Error code 1
1 error
*** Error code 1

Other extensions, for example zip, handle the required CFLAGS/LDFLAGS for pcre as follows:

.if ${PHP_MODNAME} == "zip"
CONFIGURE_ARGS+=--enable-zip \
                --with-zlib-dir=/usr \
                --with-pcre-dir=${LOCALBASE}
.endif

For phar, I tried adding the same --with-pcre-dir and it produced the failing build output above. I had to set CFLAGS and LDFLAGS in environment as follows:

.if ${PHP_MODNAME} == "phar"
CONFIGURE_ARGS+=--enable-phar
# does not work
#               --with-pcre-dir=${LOCALBASE}
CFLAGS+=        -I${LOCALBASE}/include
LDFLAGS+=       -L${LOCALBASE}/lib
.endif

Grepping php source tree for `with-pcre` reveals that zip extension mentions it in config.m4 whereas phar extension does not.

I checked current snapshot of 5.3 and it has the same results for grepping for `with-pcre`.

I tried compiling e.g. the zip extension from php source (not going through FreeBSD ports system) but even with --with-pcre-dir it would not find pcre.h. But build of zip does work from FreeBSD ports.

Test script:
---------------
cd ext/phar
phpize
./configure --with-pcre-dir=/usr/local

...
configure: WARNING: unrecognized options: --with-pcre-dir


Expected result:
----------------
--with-pcre-dir sets CFLAGS and LDLFAGS appropriately for phar extension to build.

Actual result:
--------------
phar build fails when it cannot find pcre.h.