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Building Apache & PHP on AIX 5.2 Print E-mail
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Last Updated: Thursday, 21 December 2006

1. Introduction
     1.1. Modules & extensions
     1.2. Software dependencies
     1.3. Notational conventions
     1.4. Context
     1.5. Pre-requisite
     1.6. Environment
2. Building
     2.1. Creating the target structure
     2.2. Creating external links
     2.3. Embedding a private libgcc library (4.1.1)
     2.4. Compiling zlib (1.2.3)
     2.5. Compiling OpenSSL (0.9.7i)
     2.6. Compiling OpenLDAP (2.3.27 - 20060823)
     2.7. Compiling expat (2.0.0)
     2.8. Compiling libiconv (1.9.2)
     2.9. Compiling Apache (2.0.59)
     2.10. Compiling mod_jk (tomcat-connectors 1.2.18)
     2.11. Compiling libxml2 (2.6.26)
     2.12. Compiling libxslt (1.1.17)
     2.13. Compiling libpng (1.2.8-config)
     2.14. Compiling libjpeg (v6b)
     2.15. Compiling freetype (2.2.1)
     2.16. Compiling bzip2 (1.0.1)
     2.17. Compiling Curl (7.15.5)
     2.18. Compiling IMAP (4rev1)
     2.19. Compiling MySQL (5.0.24)
     2.20. Compiling PostgreSQL (8.1.4)
     2.21. Compiling mm (1.4.2)
     2.22. Compiling PHP 4 (4.4.4)
     2.23. Compiling PHP 5 (5.1.6)
3. Configuring
     3.1. System
     3.2. Apache
     3.3. Oracle client
     3.4. PHP
     3.5. Start & Stop scripts
4. Checking
     4.1. Starting Apache/PHP
     4.2. Checking the shared library dependencies
     4.3. Checking the PHP modules
5. The end
6. Installing the package

Document history
V 1.0-1 JUN 2006 Creation
V 1.1-1 JUL 2006 Added mod_jk
Added imap
Added RPM creation on Linux
Suppressed AdoDB
V 1.2-1 SEP 2006 Component upgrade to the latest stable versions.
V1.4-4 SEP 2006 Added PHP 4
V 1.4-5 OCT 2006 Added Apache modules : isapi dumpio logio proxy proxy_connect proxy_ftp proxy_http.
Added the mm library (allows to store PHP session information in shmem).
V 1.4-9 NOV 2006 Minor bug corrections and optimizations

1 - Introduction

The goal here is to build a package including every libraries it depends on (except Oracle and system libraries). And everything must be located under a single directory tree.

1.1 - Modules & extensions

We are building Apache 2.0, PHP 4, and PHP 5 with the following modules and extensions :

  • Apache modules :
access actions alias asis auth auth_anon
auth_dbm auth_ldap autoindex cache case_filter case_filter_in
cern_meta cgi cgid charset_lite dav dav_fs
deflate dir disk_cache dumpio echo env
expires ext_filter file_cache headers imap include
info isapi jk (with jni) ldap log_config log_forensic
logio mem_cache mime mime_magic negotiation proxy
proxy_connect proxy_ftp proxy_http rewrite setenvif speling
status suexec ssl unique_id userdir usertrack
vhost_alias PHP 4 PHP 5      

:note These Apache modules are all compiled as shared objects (DSOs).

  • PHP 4 extensions :
bcmath bz2 calendar curl domxml ftp (with ssl)
gd (png, jpeg, freetype) iconv imap ldap mysql oci8
openssl pgsql sockets sysvmsg sysvsem sysvshm
xml zlib        
  • PHP 5 extensions :
bcmath bz2 calendar curl dom ftp (with ssl)
gd (png, jpeg, freetype) iconv imap ldap libxml mysql
mysqli oci8 openssl pdo pdo_mysql pdo_oci
pdo_pgsql pdo_sqlite pgsql shmop simplexml soap
sockets sqlite sysvmsg sysvsem sysvshm xml
xmlreader xmlwriter xsl zlib    

We also include the mm session handler support in PHP 4 & 5 (to be activated with the 'session_handler=mm' directive in php.ini)

1.2 - Software dependencies

The following diagram displays the dependencies between the software packages and libraries we are integrating together.

Sotware dependencies

:note We use the GD bundled library provided in the PHP source packages (4 & 5).

1.3 - Notational conventions

Everything written in red and between '<' and '>' characters must be manually adapted to your configuration.

Everything in black on grey can be copy/pasted as-is.

For instance :

dir=<$BASE>

means that you must replace the '<$BASE>' part with your base directory before typing the line, but :

dir=$BASE

must be entered as-is.

1.4 - Context

Host model : PL 820
OS : AIX 5.2
Date : Sep 2006
Shell : /usr/bin/ksh
User : root (not mandatory)
Oracle client : 9.2.0.6

1.5 - Pre-requisite

Product Version Source
gzip 1.2.4a

http://aixpdslib.seas.ucla.edu/index.html

gcc 4.1.1
Gettext 0.14.5
Libiconv 1.10
Flex 2.5.4
GNU make 3.81
GNU dbm (gdbm) 1.8.3

We also create a link in /usr/local/bin in order to ensure we use GNU make and not /usr/ccs/bin/make :

ln -s make /usr/local/bin/gmake

1.6 - Environment

First, we set the install directory :

export BASE=<your install directory>

We ensure that the LIBPATH, LD_LIBRARY_PATH, and SHLIB_PATH variables are not set. Only one is used on this system but it is easier to unset them all on every OS :

unset LIBPATH LD_LIBRARY_PATH SHLIB_PATH  || :

If your shell defines alias commands for cp, rm, or mv, you must unalias them now :

unalias cp rm mv || :

Here, we set the variables we use for every software and on every OS. Among others, we ensure that /usr/local/bin is in the PATH :

export BLIB=$BASE/libs
export PKG_CONFIG_PATH="$BLIB/pkg_common"

export CC=gcc
export MAKE=gmake
export CF_OPTS="--enable-shared --disable-static"
export PATH="$PATH:/usr/local/bin:/usr/ccs/bin"

We define where the external modules are located :

export ORACLE_HOME=<your Oracle home>
export JAVA_HOME=<your Java home>

We set the variables specific to this software :

export BAP=$BASE/apache

We set the variables specific to this environment :

export CPPFLAGS="-I $BLIB/z/include -I $BLIB/ssl/include"

export LDFLAGS="-L$BLIB/common -Wl,-brtl"
export blibpath="$BLIB/common:/usr/lib"

And we save these values as reference values :

export REF_LDFLAGS="$LDFLAGS"
export REF_CPPFLAGS="$CPPFLAGS"

2 - Building

2.1 - Creating the target structure

[ -d $BLIB/common ] || mkdir -p $BLIB/common
[ -d $BLIB/pkg_common ] || mkdir -p $BLIB/pkg_common

Now, we create the script that we will use to create symbolic links from a common directory to every library file. This way, we can keep only this directory in the dynamic lib search path (LDFLAGS). We also create links to the pkgconfig files.

export LINKDIR=/tmp/linkdir
echo 'cd $BLIB/$1
cdir=$2
[ -z "$2" ] && cdir=common

for i in *
    do
    if [ -f "$i" ] ; then
        echo "Linking $i"
        /bin/rm -rf $BLIB/$cdir/$i
        ln -s ../$1/$i $BLIB/$cdir/$i
    fi
done

[ -d pkgconfig ] && $LINKDIR $1/pkgconfig pkg_common
exit 0
' >$LINKDIR
chmod +x $LINKDIR

2.2 - Creating external links

We use symbolic links for the external dependencies (Oracle & Java). This way, the path of the symbolic link is constant, and we can move the package anywhere, wherever Oracle and Java are physically installed.

ln -s $ORACLE_HOME $BLIB/oracle
ln -s $JAVA_HOME $BLIB/java

2.3 - Embedding a private libgcc library (4.1.1)

Some files we generate have a runtime dependency on the libgcc shared library file. This file belongs to gcc, which means that, by default, we should have libgcc installed on every runtime host ! Workaround : we include the libgcc shared library file in the final package, and we force the executable files to reference this copy :

mkdir -p $BLIB/gcc/lib
cp -p /usr/local/lib/libgcc_s.a $BLIB/gcc/lib
$LINKDIR gcc/lib

:note If you don't have a shared gcc library on your system (as it happens with the gcc package from HP on HP-UX), the best solution is to rebuild gcc (gmake bootstrap builds the shared gcc lib we need).

2.4 - Compiling zlib (1.2.3)

Source : http://www.zlib.net/

./configure --shared --prefix=$BLIB/z

gmake "LDSHARED = gcc -shared $LDFLAGS"
gmake install

 #-- Cleanup

rm -rf $BLIB/z/share $BLIB/z/lib/*.a

$LINKDIR z/lib

2.5 - Compiling OpenSSL (0.9.7i)

Source : http://www.openssl.org/

The OpenSSL package does not provide a method to build shared libraries with gcc on AIX. As we need one, we enhance the aix-gcc method in the Configure file :

repl='aix-shared:-fPIC:-shared:.so'
sed "s!^\(.aix-gcc.*dlfcn:\)!\1$repl!" <Configure >tmp1
cp tmp1 Configure
unset repl

:note But our workaround is not perfect because we have to copy the shared libraries manually. ;-)

:note As the configuration process does not use the LDFLAGS environment variable as it should, we have to modify several variables related to the way the libraries will be linked.

./Configure --openssldir=$BLIB/ssl shared zlib aix-gcc

gmake "SHARED_LDFLAGS = -shared $LDFLAGS" \
    "EX_LIBS = $LDFLAGS -ldl -lz" \
    "SHAREDFLAGS = $LDFLAGS -Wl,-G,-bE:lib\$\$i.exp"

gmake install_sw

#-- Install AIX shared libraries

cp -p libcrypto.so.0.9.7 $BLIB/ssl/lib/libcrypto.so
cp -p libssl.so.0.9.7 $BLIB/ssl/lib/libssl.so

#-- Cleanup

rm -rf  $BLIB/ssl/man $BLIB/ssl/lib/*.a
$LINKDIR ssl/lib

gmake test "EX_LIBS = $LDFLAGS -ldl -lz"

2.6 - Compiling OpenLDAP (2.3.27 - 20060823)

Source : http://www.openldap.org/

#-- Need to specify OpenSSL location (no configure option)

CC=gcc \
    ./configure --prefix=$BLIB/ldap --without-cyrus-sasl \
    --disable-slapd --disable-slurpd --with-tls=openssl $CF_OPTS

gmake
gmake install

rm -rf $BLIB/ldap/bin $BLIB/ldap/man

$LINKDIR ldap/lib

2.7 - Compiling expat (2.0.0)

Source : http://expat.sourceforge.net/

./configure --prefix=$BLIB/expat $CF_OPTS

gmake "CPPFLAGS = $CPPFLAGS -fPIC"
gmake install

#-- Cleanup

rm -rf $BLIB/expat/bin $BLIB/expat/man

$LINKDIR expat/lib

2.8 - Compiling libiconv (1.9.2)

Source : http://www.gnu.org/software/libiconv/

./configure --prefix=$BLIB/iconv $CF_OPTS

gmake
gmake install

rm -rf $BLIB/iconv/bin $BLIB/iconv/share/doc \
    $BLIB/iconv/share/man

$LINKDIR iconv/lib

2.9 - Compiling Apache (2.0.59)

Source : http://httpd.apache.org/ 

:note We compile Apache in 3 steps because our LDAP package is not in the standard location.

:note For various reasons, we don't want '/usr/ccs/lib' in the library search path of the generated executable files. So, we copy the ndbm library to $BLIB, just for compile time. This library is static, so we can remove it after it is linked.

cp -p /usr/ccs/lib/libdbm.a $BLIB

:note By default, the LDAP modules are not linked against the LDAP library. So, they cannot be loaded. Workaround: after having compiled everything, we delete the LDAP modules and recompile them while forcing the LDAP library.

#-- Build apr

cd srclib/apr
./configure --prefix=$BAP --enable-threads $CF_OPTS

gmake
gmake install

#-- Build apr-util

cd ../apr-util
./configure --prefix=$BAP $CF_OPTS\
    --with-ldap \
    --with-ldap-lib=$BLIB/ldap/lib \
    --with-ldap-include=$BLIB/ldap/include \
    --with-iconv=$BLIB/iconv \
    --with-expat=$BLIB/expat \
    --with-apr=$BAP \
    --with-dbm=ndbm \
    --with-ndbm=/usr/include:$BLIB \
    --without-gdbm

gmake
gmake install

#-- Build Apache

cd ../..
./configure --prefix=$BAP \
    --enable-mods-shared="all cache case-filter case-filter-in cgid \
       charset-lite deflate disk-cache echo file-cache \
       mem-cache suexec ldap auth-ldap ssl isapi\
       dumpio logio proxy proxy_connect proxy_ftp proxy_http" \
    --disable-auth-digest \
    --with-perl=/usr/bin/perl \
    --with-z=$BLIB/z \
    --with-ssl=$BLIB/ssl \
    --with-iconv=$BLIB/iconv \
    --with-expat=$BLIB/expat \
    --with-apr=$BAP \
    --with-apr-util=$BAP\
         2>&1 | tee configure.log

gmake "LDFLAGS = $LDFLAGS -R $BLIB/common"

#-- Rebuild mod_ldap and mod_auth_ldap

rm mod*/exp*/mod*ldap.la
gmake "LDFLAGS = $LDFLAGS -R $BLIB/common -lldap"

#-- Install

gmake install
chown -Rh root:sys $BAP

/bin/rm $BLIB/libdbm.a #-- Remove static ndbm library

chown -Rh root:sys $BAP

2.10 - Compiling mod_jk (tomcat-connectors 1.2.18)

Source : http://tomcat.apache.org/download-connectors.cgi

cd native

./configure --with-apxs=$BAP/bin/apxs \
    --with-java-home=$BLIB/java \
    --enable-jni

gmake
gmake install

cd ..

These command compile and install a mod_jk.so file in $BAP/modules.

2.11 - Compiling libxml2 (2.6.26)

Source : http://xmlsoft.org/

./configure --prefix=$BLIB/xml2 \
    --with-iconv=$BLIB/iconv \
    --with-zlib=$BLIB/z $CF_OPTS

gmake
gmake install

rm -rf $BLIB/xml2/man $BLIB/xml2/share $BLIB/xml2/bin/xmlcatalog \
    $BLIB/xml2/bin/xmllint $BLIB/xml2/lib/python2.2

$LINKDIR xml2/lib

2.12 - Compiling libxslt (1.1.17)

Source : http://xmlsoft.org/XSLT/

./configure --prefix=$BLIB/xslt \
    --with-libxml-prefix=$BLIB/xml2 $CF_OPTS

gmake
gmake install

/bin/rm -rf $BLIB/xslt/man $BLIB/xslt/share $BLIB/xslt/bin/xsltproc

$LINKDIR xslt/lib

2.13 - Compiling libpng (1.2.8-config)

Source : http://libpng.sourceforge.net/

./configure --prefix=$BLIB/png $CF_OPTS

gmake
gmake install

rm -rf $BLIB/png/man

$LINKDIR png/lib

2.14 - Compiling libjpeg (v6b)

Source : http://www.ijg.org/files

:note The Makefile does not know how to build a shared library on AIX. We have to do it manually.

:note The 'Makefile' install (install-lib target) does not work on AIX. So, we install it another way.

CPPFLAGS="$CPPFLAGS -fPIC" \
    ./configure --prefix=$BLIB/jpeg $CF_OPTS

#-- Build library

gmake libjpeg.la
gcc -shared -o libjpeg.so *.o

#-- Manual install

mkdir -p $BLIB/jpeg/include $BLIB/jpeg/lib
cp jconfig.h jpeglib.h jmorecfg.h jerror.h $BLIB/jpeg/include
sed -e "s/\(dlname=\)''/\1'libjpeg.so'/" \
    -e "s/\(library_names=\)''/\1'libjpeg.so'/" \
    -e "s/\(old_library=\)'.*\$/\1''/" <libjpeg.la >$BLIB/jpeg/lib/libjpeg.la
cp libjpeg.so $BLIB/jpeg/lib

$LINKDIR jpeg/lib

2.15 - Compiling freetype (2.2.1)

Source : http://www.freetype.org/index2.html

:note On some OS, freetype seems to be incompatible with our version of zlib (don't know why it does not happen on every OS). Workaround: we systematically use the embedded zlib library.

#-- Build process needs GNU make (and a GNUMAKE variable)

GNUMAKE=gmake \
    ./configure --prefix=$BLIB/freetype --without-zlib $CF_OPTS

gmake
gmake install

$LINKDIR freetype/lib

2.16 - Compiling bzip2 (1.0.1)

Source : http://www.digistar.com/bzip2/

:note Here, we have to modify the makefile before compiling in order to remove some invalid options.

:note As the current makefile does not use our LDFLAGS settings, we must link the shared library with our own command.

:note We also must install the files manually as the Makefile is unable to do it.

#-- Modify the Makefile

sed 's/-Wl,-soname -Wl,libbz2.so.1.0//' <Makefile-libbz2_so >tmp1
cp tmp1 Makefile-libbz2_so

#-- Build

gmake -f Makefile-libbz2_so
gcc -shared -o libbz2.so.1.0.1 $LDFLAGS *.o

#-- Install

mkdir -p $BLIB/bz2/include $BLIB/bz2/lib
cp bzlib.h $BLIB/bz2/include
cp libbz2.so.1.0.1 $BLIB/bz2/lib/libbz2.so.1.0.1
ln -s libbz2.so.1.0.1 $BLIB/bz2/lib/libbz2.so.1.0
ln -s  libbz2.so.1.0 $BLIB/bz2/lib/libbz2.so.1
ln -s libbz2.so.1 $BLIB/bz2/lib/libbz2.so

$LINKDIR bz2/lib

2.17 - Compiling Curl (7.15.5)

Source : http://curl.haxx.se/

./configure --prefix=$BLIB/curl \
    --with-zlib=$BLIB/z --with-ssl=$BLIB/ssl $CF_OPTS

gmake
gmake install

rm -rf $BLIB/curl/share/man $BLIB/curl/bin/curl

$LINKDIR curl/lib

2.18 - Compiling IMAP (4rev1)

Source : http://www.imap.org

:note The IMAP distribution does not provide a way to build a shared client library. So, we do it our way : we build the static library first, with the '-fPIC' compile flag to generate relocatable objects, and, then, we build the shared library from these objects.

:note We have to provide the MD5ENABLE definition because it is not provided on this OS.

:note We need a libc-client.a file in $BLIB/imap/lib because the PHP configure process specifically tests for the presence of this file. So, we create it as a symbolic link.

#-- Modify the Makefiles for SSL location

sed "s!/usr/local/ssl!$BLIB/ssl!g" <src/osdep/unix/Makefile >tmp1
cp tmp1 src/osdep/unix/Makefile

sed -e "s,/usr/include/openssl,$BLIB/ssl/include,g" \
    -e "s,/usr/share/ssl,$BLIB/ssl,g" \
    -e "s,SSLLIB=/usr/lib,SSLLIB=$BLIB/ssl/lib,g" <Makefile >tmp1
cp tmp1  Makefile

#-- Build a static library

gmake ga4 "MAKE = gmake" "EXTRACFLAGS = -fPIC -DMD5ENABLE=\"\"" \
    "EXTRASPECIALS = CC=gcc"

#-- Build the dynamic one

cd c-client
gcc  -shared -o libc-client.so *.o $LDFLAGS -lssl -lcrypto -Wl,-G -lz

#-- Install the headers and the library
#-- PHP configure needs a '.a' file

mkdir -p $BLIB/imap/lib $BLIB/imap/include
cp libc-client.so $BLIB/imap/lib
ln -s libc-client.so $BLIB/imap/lib/libc-client.a
cp *.h $BLIB/imap/include

cd ..

$LINKDIR imap/lib

2.19 - Compiling MySQL (5.0.24)

Source : http://www.mysql.com/

:note Because of bug #21327, we have to modify the configure script before running it if we want to use OpenSSL from a non-standard location. This bug is supposed to be fixed in version 5.0.25. Here is a quick and dirty hack to fix it until then :

sed -e 's!\$d/libssl!$libs/libssl!g' <configure >configure.new
cp configure.new configure
chmod +x configure

CXX=gcc \
    ./configure --prefix=$BLIB/mysql $CF_OPTS \
    --enable-thread-safe-client \
    --with-zlib-dir=$BLIB/z \
    --with-openssl=$BLIB/ssl \
    --without-debug \
    --without-server \
    --without-extra-tools \
    --without-docs \
    --without-man \
    --without-bench 2>&1 | tee configure.log

gmake
gmake install

#-- Cleanup

rm -rf $BLIB/mysql/bin/* $BLIB/mysql/libexec $BLIB/mysql/mysql-test
cp scripts/mysql_config $BLIB/mysql/bin

#-- Remove server libraries

for i in dbug heap myisam myisammrg mystrings mysys vio
    do rm -f $BLIB/mysql/lib/mysql/lib$i.*
done

$LINKDIR mysql/lib/mysql

2.20 - Compiling PostgreSQL (8.1.4)

Source : http://www.postgresql.org/

The configure process does not use CPPFLAGS and LDFLAGS correctly (the problem only appears when the libraries are not installed in the usual locations). As a workaround, we feed it with modified values for some other environment variables.

LDFLAGS_SL="$LDFLAGS" \
    CFLAGS="$CPPFLAGS" \
    CPP="gcc -E $CPPFLAGS" \
    ./configure --prefix=$BLIB/pgsql $CF_OPTS \
    --without-docdir \
    --without-tcl \
    --with-openssl \
    --without-readline \
    --with-zlib

gmake
gmake install

#-- Cleanup

rm -rf $BLIB/pgsql/bin/* $BLIB/pgsql/man $BLIB/pgsql/include/server \
    $BLIB/pgsql/lib/*.a

cp src/bin/pg_config/pg_config $BLIB/pgsql/bin

$LINKDIR pgsql/lib

2.21 - Compiling mm (1.4.2)

Source : http://www.ossp.org/pkg/lib/mm/

:note Here, the Makefile does not use the LDFLAGS variable, but we absolutely need it to specify the library search path. So, we have to use an ugly workaround... (Feature request #122 sent to the mm maintainers)

./configure --prefix=$BLIB/mm $CF_OPTS

gmake "CC=gcc -Wl,-brtl" "libdir = $BLIB/mm/lib $LDFLAGS"
gmake install

rm -rf $BLIB/mm/share

$LINKDIR mm/lib

2.22 - Compiling PHP 4 (4.4.4)

Source : www.php.net

Image This one is a nightmare and definitely not for the faint-hearted, mostly because of the silly way the AIX runtime linker manages shared libraries and objects. So, the only solution I found after several hours of fighting was to build it in several steps, feeding the linker with some weird options. But the result works well...

:note There is a bug in this version of libtool when generating shared libraries for AIX. Workaround : we modify the libtool script after the configure stage.

:note The 'Makefile' install of the Apache module does not work on AIX because of a suffix incoherence (.so/.a). Workaround : we install it manually. Only difference : we will have to add the 'LoadModule' directive manually in httpd.conf (LoadModule php4_module modules/libphp4.so). If you add it now, prefix the line with a '#' char because PHP 4 & 5 Apache modules cannot be active together.

:note libtool does not install shared extensions as '.so' files, but as '.a' files. We have to extract the '.so' files by ourselves.

:note PHP 4 finds Oracle libraries in $ORACLE_HOME/lib. But we are on a 32 bit environment and the corresponding libraries are in $ORACLE_HOME/lib32. This bug has been corrected a long time ago on PHP 5 but it seems to be still present in version 4. Workaround : we modify the Makefile after the configure stage.

:note During installation, PHP inserts a 'LoadModule' line in httpd.conf. As we cannot have both PHP modules loaded at the same time, we decide that the default PHP module will be PHP 5. So, we comment out the PHP 4 LoadModule directive in the httpd.conf configuration file.

export PBASE=$BASE/php4

ORA_CF=''
if [ "$ORACLE_HOME" != 'none' ] ; then \
    if [ -d "$ORACLE_HOME/sdk" ] ; then    #-- InstantClient
        ORA_CF="--with-oci8-instant-client=shared,$BLIB/oracle"
    else    #-- Standard client
        ORA_CF="--with-oci8=shared,$BLIB/oracle"
    fi
fi

./configure --prefix=$PBASE \
    --with-config-file-path=$PBASE \
    --with-apxs2=$BAP/bin/apxs \
    --with-zlib=shared,$BLIB/z \
    --with-zlib-dir=$BLIB/z \
    --with-bz2=shared,$BLIB/bz2 \
    --enable-ftp=shared \
    --enable-dom \
    --with-iconv=shared,$BLIB/iconv \
    --with-iconv-dir=$BLIB/iconv \
    --enable-calendar=shared \
    --enable-sockets=shared \
    --enable-bcmath=shared \
    --enable-sysvsem \
    --enable-sysvshm \
    --enable-sysvmsg \
    --with-openssl=shared,$BLIB/ssl \
    --with-openssl-dir=$BLIB/ssl \
    --with-curl=shared,$BLIB/curl \
    --with-ldap=shared,$BLIB/ldap \
    --with-gd=shared \
    --with-png-dir=$BLIB/png \
    --with-jpeg-dir=$BLIB/jpeg \
    --enable-gd-native-ttf \
    --with-freetype-dir=$BLIB/freetype \
    --with-mysql=shared,$BLIB/mysql \
    --with-pgsql=shared,$BLIB/pgsql \
    --with-imap=shared,$BLIB/imap \
    --with-imap-ssl=$BLIB/ssl \
    --with-dom-xslt=$BLIB/xslt \
    --with-dom-exslt=$BLIB/xslt \
    --with-dom=$BLIB/xml2 \
    --with-expat-dir=$BLIB/expat \
    --with-mm=$BLIB/mm \
    $ORA_CF \
        2>&1 | tee configure.log

#-- Modify the Oracle lib path in the Makefile

_oralibdir=lib
if [ -d $BLIB/oracle/lib32 ] ; then
    _oralibdir=lib32
    sed 's!oracle/lib !oracle/lib32 !g' <Makefile >tmp1
    cp tmp1 Makefile
fi

#-- Fix libtool

sed 's!\\\$objdir/!\\\$output_objdir/!g' <libtool >tmp1
cp tmp1 libtool
chmod +x libtool

#-- Hungry linker, needs additional '-R' options...

export LDFLAGS="$LDFLAGS -R $BLIB/common"
[ "$ORACLE_HOME" != 'none' ] \
    && export LDFLAGS="$LDFLAGS -R $BLIB/oracle/$_oralibdir"

#-- Build : First step

gmake

#-- 2nd step : Build symbol table

echo "#! ." >php.sym
echo >>php.sym
cat .libs/libphp4.exp >>php.sym

#-- 3rd step : Build Apache module and CLI interpreter with exported symbols

/bin/rm -f libphp4.la .libs/libphp4.so sapi/cli/php
gmake "LDFLAGS = $LDFLAGS -Wl,-bE:$PWD/php.sym,-bexpall"

#-- Restore LDFLAGS

export LDFLAGS="$REF_LDFLAGS"

#-- Install everything except Apache module

gmake install-cli install-modules install-build install-headers \
    install-programs install-pear

#-- Install Apache module

/bin/rm -f $BAP/modules/libphp4.so
cp .libs/libphp4.so $BAP/modules
chmod 755 $BAP/modules/libphp4.so

#-- Move extensions (personal, I don't like this 'no-debug...' dir)

cd $PBASE/lib/php/extensions
mv */* .
rmdir no-debug*
cd ~-

#-- Change suffix of extension libraries (.a -> .so)

cd $PBASE/lib/php/extensions
for i in *.a ; do ar xv $i ; done
/bin/rm -f *.a
cd ~-

#-- Install default configuration file

cp php.ini-recommended $PBASE/php.ini

2.23 - Compiling PHP 5 (5.1.6)

Source : www.php.net

:note Here, libtool (mode=link) needs an additional '-R' option to put what we need in the library search paths. An other workaround would be to modify the generated libtool script, but it is more complex.

:note Problem with the PDO extension in shared mode (Apache process crashes after loading this extension). As this problem does not occur when PDO is compiled in static mode, we use it this way. The problem does not occur with PDO drivers, which are still compiled in shared mode.

:note Problem with the GD shared extension (unresolved 'math' symbols). Bug reported as #38868. Workaround: we rebuild it alone while forcing the '-lm' link flag.

:note Ignore this error message from configure : './configure[75167]: pkg-config:  not found.'. It is a configure bug reported as #35981. This error does not seem to have any influence on the rest of the build process.

:note The 'Makefile' install of the Apache module does not work on AIX because of a suffix incoherence (.so/.a). Workaround : we install it manually. Only difference : we will have to add the 'LoadModule' directive manually in httpd.conf (LoadModule php5_module modules/libphp5.so).

:note A bug was introduced with PHP version 5.1.4: the sed command to generate the list of global symbols (needed to link the CLI interpreter) is wrong. This bug is specific to AIX. Bug reported as #38872. Workaround : after configure has run, we modify the Makefile to correct the sed command.

export PBASE=$BASE/php5

#-- Set Oracle configure options

ORA_CF=''
if [ "$ORACLE_HOME" != 'none' ] ; then \
    if [ -d "$ORACLE_HOME/sdk" ] ; then    #-- InstantClient
        ORA_CF="--with-oci8=shared,instantclient,$BLIB/oracle \
            --with-pdo-oci=shared,instantclient,$BLIB/oracle,10.2"
    else    #-- Standard client
        ORA_CF="--with-oci8=shared,$BLIB/oracle \
            --with-pdo-oci=shared,$BLIB/oracle"
    fi
fi
#-- Undocumented option - disables Oracle support in PHP5
#-- (and keeps it enabled for PHP4). Use if you want to compile PHP4 against
#-- a pre-9.0 version of Oracle (which is not supported by PHP5).

[ -n "$DISABLE_PHP5_ORA" ] && ORA_CF=''

./configure --prefix=$PBASE \
    --with-config-file-path=$PBASE \
    --with-apxs2=$BAP/bin/apxs \
    --with-zlib=shared,$BLIB/z \
    --with-zlib-dir=$BLIB/z \
    --with-bz2=shared,$BLIB/bz2 \
    --enable-ftp=shared \
    --with-libxml=$BLIB/xml2 \
    --with-xml=$BLIB/xml2 \
    --with-libxml-dir=$BLIB/xml2 \
    --with-xsl=shared,$BLIB/xslt \
    --enable-dom \
    --enable-simplexml \
    --with-iconv=shared,$BLIB/iconv \
    --with-iconv-dir=$BLIB/iconv \
    --enable-calendar=shared \
    --enable-sockets=shared \
    --enable-soap=shared \
    --enable-bcmath=shared \
    --enable-sysvsem \
    --enable-sysvshm \
    --enable-shmop \
    --enable-sysvmsg \
    --enable-pdo \
    --with-pdo-sqlite=shared \
    --with-sqlite=shared \
    --enable-sqlite-utf8 \
    --with-openssl=shared,$BLIB/ssl \
    --with-openssl-dir=$BLIB/ssl \
    --with-curl=shared,$BLIB/curl \
    --with-ldap=shared,$BLIB/ldap \
    --with-gd=shared \
    --with-png-dir=$BLIB/png \
    --with-jpeg-dir=$BLIB/jpeg \
    --enable-gd-native-ttf \
    --with-freetype-dir=$BLIB/freetype \
    --with-mysql=shared,$BLIB/mysql \
    --with-mysqli=shared,$BLIB/mysql/bin/mysql_config \
    --with-pdo-mysql=shared,$BLIB/mysql \
    --with-pgsql=shared,$BLIB/pgsql \
    --with-pdo-pgsql=shared,$BLIB/pgsql \
    --with-imap=shared,$BLIB/imap \
    --with-imap-ssl=$BLIB/ssl \
    --with-mm=$BLIB/mm \
    $ORA_CF \
        2>&1 | tee configure.log

#-- Modify the Makefile to work around bug #38872

sed 's!\\1\.o!.libs\\/\\1.o!' <Makefile >tmp1
cp tmp1 Makefile

export LDFLAGS="$LDFLAGS -R $BLIB/common"
[ "$ORACLE_HOME" != 'none' ] \
    && export LDFLAGS="$LDFLAGS -R $BLIB/oracle/lib32"

gmake

#-- Rebuild gd.so with the '-lm' flag

rm ext/gd/gd.so
gmake LDFLAGS="$LDFLAGS -lm"

export LDFLAGS="$REF_LDFLAGS"

#-- Install everything except Apache module

gmake install-cli install-modules install-build install-headers \
    install-programs install-pear

#-- Install Apache module

/bin/rm -f $BAP/modules/libphp5.so
cp .libs/libphp5.so $BAP/modules
chmod 755 $BAP/modules/libphp5.so

#-- Move extensions (personal, I don't like this 'no-debug...' dir)

cd $PBASE/lib/php/extensions
mv */* .
rmdir no-debug*
cd ~-

#-- Install default configuration file

cp php.ini-recommended $PBASE/php.ini

3 - Configuring

Here, we give only a minimal configuration, which allows to start Apache/PHP, and to run the test we give below. When the package is installed on a target machine, it must be configured in a much more serious way. But this aspect is beyond the scope of this document.

:call

Warning : Running this package with the default configuration in a production environment can lead to serious performance and security problems !!
You have been warned

3.1 - System

  • Check that a www user exists in /etc/passwd. If not, create it with passwd='*' and login shell = /bin/false.
  • Add a www group in /etc/group if it does not already exist.

3.2 - Apache

Edit $BAP/conf/httpd.conf :

  • Change the line starting with 'User' to 'User www'
  • Change the line containing 'Group #-1' to 'Group www'.
  • Add this line anywhere in the file :

AddType application/x-httpd-php .php

Add the following line at the end of $BAP/bin/envvars :

unset LD_LIBRARY_PATH LIBPATH SHLIB_PATH

3.3 - Oracle client

Edit the file '$BAP/bin/envvars' and add the environment variables needed by the Oracle client :

ORACLE_HOME=<$BASE>/libs/oracle
export ORACLE_HOME

#-- TNS_ADMIN is optional, set only if you don't use the default
#-- location ($ORACLE_HOME/network/admin)

TNS_ADMIN=<directory>
export TNS_ADMIN

3.4 - PHP

For each PHP version, edit $BASE/php{4,5}/php.ini :

extension_dir = "<$BASE>/php/lib/php/extensions"

3.5 - Start & Stop scripts

cd $BASE
mkdir system
cd system

Create a file named apache in this directory. Its mode is 755 and it contains the following code :

# Apache/PHP start/stop script
#
# chkconfig: 2345 99 05
# description: Apache/PHP Web server
#
# V 1.3 (29-AUG-2006)
#
#============================================================================

export APACHE_HOME=<$BASE>

export PATH=/usr/sbin:/usr/bin:/sbin:$PATH

case $1 in
'start_msg') echo "Starting Apache Web Server";;
'stop_msg') echo "Stopping Apache Web Server";;

'start')
    # Check to see if apache is allowed to start...
    $APACHE_HOME/apache/bin/apachectl start && exit 0
    echo "** ERROR: Could not start Apache"
    exit 1
    ;;
   
'stop')
    $APACHE_HOME/apache/bin/apachectl stop >/dev/null 2>&1
    exit 0
    ;;
   
*)
    echo "usage: $0 {start|stop|start_msg|stop_msg}"
    exit 1
    ;;
esac

#============================================================================

4 - Checking

4.1 - Starting Apache/PHP

Now, start Apache with :

<$BASE>/system/apache start

This should not display any message.

4.2 - Checking the shared library dependencies

unset LANG
unset LIBPATH SHLIB_PATH LD_LIBRARY_PATH
cd $BASE
for i in `find . -type f`; do
    file $i | grep executable >/dev/null || continue
    echo $i
done | while read f
    do
    ldd $f
done 2>&1 | fgrep -v 'needs:' \
    | tr '[:space:]' ' ' \
    | sed -e 's!(.*$!!' -e 's!^  !!g' -e 's!\.a$!!' \
    | sort -u \
    | grep -v libodm \
    | grep -v '^/unix$' \
    | grep -v "^$BASE/"

This script is quite long to execute (up to 3 min). The results must show only the following system libraries :

  • /usr/lib/libc
  • /usr/lib/libcrypt
  • /usr/lib/libdl
  • /usr/lib/libnsl
  • /usr/lib/libpthread
  • /usr/lib/libpthreads
  • /usr/lib/libpthreads_compat
  • /usr/lib/librtl
  • /usr/lib/libs
  • /usr/lib/libtli

4.3 - Checking the PHP modules

Here, we just check that the PHP shared modules can be loaded without error. This check should be done every time you install your package to a new host, as it allows to check that every shared lib dependencies are satisfied.

The syntax of this script must be compatible with PHP versions 4 & 5. That's why we cannot use scandir().

By default, you will be testing PHP 5. In order to test your PHP 4 installation, comment out the PHP5 line in $BAP/conf/httpd.conf, uncomment the PHP4 line, restart Apache, and reload the page from your browser.

Create a new file named $BAP/htdocs/test.php with the following content :

<?php
error_reporting(E_ALL);
ini_set('display_errors',true);

$libs=array();
$dir=opendir(ini_get('extension_dir'));
while ($lib=readdir($dir))
    {
    if (fnmatch('*.'.PHP_SHLIB_SUFFIX,$lib)) $libs[]=$lib;
    }

sort($libs);
foreach($libs as $lib)
    {
    echo "Loading module $lib ...<br>";
    dl($lib);
    }

phpinfo();
?>

From your browser, display this page (URL = http://<your_server>/test.php).

It displays the configuration of every PHP modules, static and dynamic. If there are some errors when trying to load a module, it will also display them.

5 - The end

Congratulations !

Now, you have a complete Apache/PHP package in your $BASE directory. You can now tar and compress it to a package file.

6 - Installing the package

In order to install the package to a target host :

  • Uncompress and untar the package file on the target host in the same directory as the source host ($BASE)
  • Check that a www user exists in /etc/passwd. If not, create it with passwd='*' and login shell = /bin/false.
  • Add a www group in /etc/group if it does not already exist.
  • Check the shared lib dependencies (see above)
  • If you want Apache to start and stop automaticaly at bootup/shutdown time, create the corresponding entries in the system files (see above)
  • Configure Apache ($BAP/conf) and PHP ($BASE/php{4,5}/php.ini)
  • Start Apache with : <$BASE>/system/apache start
  • Check the PHP modules (see above)
  • :love Enjoy !

Comments
Great article
Written by Guest on 2006-03-09 13:08:10 IP: 212.188.200.42
This is a great article, I am installing php on aix 5.2 and it is just what I need. Thanks for providing such fantastic details. 
bob
Try to compile PHP on AIX5.2 but faild a
Written by Guest on 2006-04-28 15:58:09 IP: 81.255.174.7
root@hotname# ./configure --with-apxs=/www/bin/apxs 
loading cache ./config.cache 
checking for egrep... grep -E 
checking for a sed that does not truncate output... /usr/bin/sed 
checking host system type... powerpc-ibm-aix5.2.0.0 
checking for gcc... gcc 
checking whether the C compiler (gcc -O2 ) works... no 
configure: error: installation or configuration problem: C compiler cannot create executables. 
 
config.log says: 
This file contains any messages produced by compilers while 
running configure, to aid debugging if configure makes a mistake. 
 
configure:1612: checking for egrep 
configure:1627: checking for a sed that does not truncate output 
configure:1771: checking host system type 
configure:1871: checking for gcc 
configure:1984: checking whether the C compiler (gcc -O2 ) works 
configure:2000: gcc -o conftest -O2 conftest.c 1>&5 
nullgcc: installation problem, cannot exec `/usr/local/lib/gcc-lib/powerpc-ibm-aix5.2.0.0/3.3.2/cc1': Arg list too long 
collect2: gcc returned 1 exit status 
configure: failed program was: 
 
#line 1995 "configure" 
#include "confdefs.h" 
 
main(){return(0);} 
 
Any hints? 
 
Re: Your gcc compiler doesn't seem to work. 
Is it able to compile a simple C source file via command line ? Try to put 'main() {}' in a 'test.c' file and then run 'gcc -c test.c'. Does it give the same message ?
Cannot start ssl
Written by Guest on 2006-04-28 18:50:31 IP: 81.255.174.7
any one can start this?  
# apachectl startssl 
 
Re: What is your error ? You need a certificate to start in SSL mode. Did you configure SSL properly ?
openssl compile issue
Written by Guest on 2006-10-02 18:46:28 IP: 62.160.169.7
It says that it cannot find zlib.h for some reason: 
c_zlib.c:25:18: error: zlib.h: No such file or directory 
 
however my cflags have the directory which zlib.h is in: 
# echo $CFLAGS 
-O2 -I /opt/Tivoli/wiki/libs/z/include -I /opt/Tivoli/wiki/libs/ssl/include 
 
I am copying exactly what is here to compile, and my $BASE dir is /opt/Tivoli/wiki 
 
What am I doing wrong? 
 
Re: Yes, there was a potential problem when zlib was not installed on the system. I have updated the documentation to have the system always find zlib. It should work now.
MySQL compile issue
Written by Guest on 2006-10-06 08:22:19 IP: 82.240.16.115
I am now getting an error when compiling mysql 
sql_select.cc: In function 'void greedy_search(JOIN*, table_map, uint, uint)': 
sql_select.cc:4091: error: expected initializer before '.' token 
sql_select.cc:4098: error: 'u2' was not declared in this scope 
 
This error I am stumped on, as it seems to be a bug in the code, but I cant find anything on google. 
 
[edit] I was searching for everything, but what I needed to. The problem is related to a bug for AIX 5.3 http://bugs.mysql.com/bug.php?id=17648. To fix it, replace all rem_size in mysql-5.0.24/sql/sql_select.cc with size_remain. This is also slated for a fix in 5.0.25. 
 
Sorry about that.

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