Php: Error on docker-php-ext-install xmlreader, in php:7.1.1-fpm

[dhoeric]

Hi, I have an issue on installing xmlreader under docker container, with image php:7.1.1-fpm

$ apt-get update && apt-get install -y libxml2-dev
$ docker-php-ext-install xmlreader
...

creating libtool
appending configuration tag "CXX" to libtool
configure: creating ./config.status
config.status: creating config.h
/bin/bash /usr/src/php/ext/xmlreader/libtool --mode=compile cc  -I. -I/usr/src/php/ext/xmlreader -DPHP_ATOM_INC -I/usr/src/php/ext/xmlreader/include -I/usr/src/php/ext/xmlreader/main -I/usr/src/php/ext/xmlreader -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 -I/usr/include/libxml2  -fstack-protector-strong -fpic -fpie -O2 -DHAVE_CONFIG_H  -fstack-protector-strong -fpic -fpie -O2   -c /usr/src/php/ext/xmlreader/php_xmlreader.c -o php_xmlreader.lo
mkdir .libs
 cc -I. -I/usr/src/php/ext/xmlreader -DPHP_ATOM_INC -I/usr/src/php/ext/xmlreader/include -I/usr/src/php/ext/xmlreader/main -I/usr/src/php/ext/xmlreader -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 -I/usr/include/libxml2 -fstack-protector-strong -fpic -fpie -O2 -DHAVE_CONFIG_H -fstack-protector-strong -fpic -fpie -O2 -c /usr/src/php/ext/xmlreader/php_xmlreader.c  -fPIC -DPIC -o .libs/php_xmlreader.o
/usr/src/php/ext/xmlreader/php_xmlreader.c:32:28: fatal error: ext/dom/dom_ce.h: No such file or directory
 #include "ext/dom/dom_ce.h"
                            ^
compilation terminated.

Seems cc compiler cannot find ext/dom/dom_ce.h, Is there any ways to link/include the directory?

[yosifkit]

So, it works in the PHP 5 images, but not 7.0 or 7.1. The following seems to work around the problem:

root@1a38316952d9:/# apt-get update && apt-get install -y libxml2-dev
root@1a38316952d9:/# export CFLAGS="-I/usr/src/php"
root@1a38316952d9:/# docker-php-ext-install xmlreader

# Dockerfile:
# do an ENV line or inline the flags on the RUN
# I would lean toward the inline, since CFLAGS could affect any other C based build
# ENV CLFAGS -I/usr/src/php
RUN apt-get update \
    && apt-get install -y libxml2-dev \
    && CFLAGS="-I/usr/src/php" docker-php-ext-install xmlreader \
# should be able to uninstall the dev now
    && apt-get purge -y --auto-remove libxml2-dev \
    && rm -r /var/lib/apt/lists/*

[dhoeric]

Thanks your help @yosifkit

[hgati]

Thanks. you're great @yosifkit

[glaucomorais]

So, it works in the PHP 5 images, but not 7.0 or 7.1. The following seems to work around the problem:

root@1a38316952d9:/# apt-get update && apt-get install -y libxml2-dev
root@1a38316952d9:/# export CFLAGS="-I/usr/src/php"
root@1a38316952d9:/# docker-php-ext-install xmlreader

# Dockerfile:
# do an ENV line or inline the flags on the RUN
# I would lean toward the inline, since CFLAGS could affect any other C based build
# ENV CLFAGS -I/usr/src/php
RUN apt-get update \
  && apt-get install -y libxml2-dev \
  && CFLAGS="-I/usr/src/php" docker-php-ext-install xmlreader \
# should be able to uninstall the dev now
  && apt-get purge -y --auto-remove libxml2-dev \
  && rm -r /var/lib/apt/lists/*

Using php:7.2-apache image, I solved using:

RUN apt-get update \
    && apt-get install -y libxml2-dev \
    && export EXTRA_CFLAGS="-I/usr/src/php" \
    && docker-php-ext-install xmlreader