debian package compilation with prefix

Generating phar.php
Generating phar.phar
PEAR package PHP_Archive not installed: generated phar will require PHP's phar extension be enabled.
clicommand.inc
directorygraphiterator.inc
directorytreeiterator.inc
invertedregexiterator.inc
pharcommand.inc
phar.inc

Build complete.
Don't forget to run 'make test'.

make[1]: Leaving directory `/tmp/php5-5.4.17/fpm-build'
touch build-fpm-stamp
dh_testdir
mkdir pear-build
mkdir pear-build-download
cd cgi-build && PHP_PEAR_DOWNLOAD_DIR=/tmp/php5-5.4.17/pear-build-download /usr/bin/make install-pear PHP_PEAR_PHP_BIN=/usr/bin/php PHP_PEAR_INSTALL_DIR=/usr/share/php PHP_PEAR_SYSCONF_DIR=/etc/pear PHP_PEAR_SIG_BIN=/usr/bin/gpg INSTALL_ROOT=/tmp/php5-5.4.17/pear-build
make[1]: Entering directory `/tmp/php5-5.4.17/cgi-build'
Installing PEAR environment:      /tmp/php5-5.4.17/pear-build/usr/share/php/
make[2]: Entering directory `/tmp/php5-5.4.17/cgi-build'

Notice: Undefined variable: metadata_dir in phar:///tmp/php5-5.4.17/cgi-build/pear/install-pear-nozlib.phar/index.php on line 245
[PEAR] Archive_Tar    - installed: 1.3.11
[PEAR] Console_Getopt - installed: 1.3.1
warning: pear/PEAR requires package "pear/Structures_Graph" (recommended version 1.0.4)
warning: pear/PEAR requires package "pear/XML_Util" (recommended version 1.2.1)
[PEAR] PEAR           - installed: 1.9.4
Wrote PEAR system config file at: /tmp/php5-5.4.17/pear-build//etc/pear/pear.conf
You may want to add: /usr/share/php to your php.ini include_path
[PEAR] Structures_Graph- installed: 1.0.4
[PEAR] XML_Util       - installed: 1.2.1
make[2]: Leaving directory `/tmp/php5-5.4.17/cgi-build'
make[1]: Leaving directory `/tmp/php5-5.4.17/cgi-build'
sed -i -e 's/-d output_buffering=1 -d open_basedir="" -d safe_mode=0/-d output_buffering=1 -d open_basedir="" -d safe_mode=0 -d memory_limit="-1"/' \
               /tmp/php5-5.4.17/pear-build/usr/bin/pear && \
        sed -i -e 's/-d output_buffering=1 -d safe_mode=0/-d output_buffering=1 -d open_basedir="" -d safe_mode=0 -d memory_limit="-1"/' \
               /tmp/php5-5.4.17/pear-build/usr/bin/pecl && \
        sed -i -e 's/-d memory_limit="-1"//' \
               -e 's/-d output_buffering=1 -d open_basedir="" -d safe_mode=0/-d output_buffering=1 -d open_basedir="" -d safe_mode=0 -d memory_limit="-1"/' \
               /tmp/php5-5.4.17/pear-build/usr/bin/peardev
sed: can't read /tmp/php5-5.4.17/pear-build/usr/bin/pear: No such file or directory
make: *** [build-pear-stamp] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2