10.28.1. Installation of Perl
The following sed causes DynaLoader.a to
be built with -fPIC so it can be linked into a shared library
later:
sed -i -e "s@pldlflags=''@pldlflags=\"\$cccdlflags\"@g" \
-e "s@static_target='static'@static_target='static_pic'@g" Makefile.SH
Perl does not, by default, know about library directories with
names other than lib, The following patch will allow it to install
to other directories:
patch -Np1 -i ../perl-5.8.8-Configure_multilib-1.patch
There is a further (possibly cosmetic) anomaly - if we install perl
and then run perl -V
it will claim that libc is in /lib. The following sed fixes this,
but only takes effect when make
install is run:
sed -i "/libc/s@/lib@/lib64@" hints/linux.sh
We still need to tell perl to actually use lib64:
echo 'installstyle="lib64/perl5"' >>hints/linux.sh
To have full control over the way Perl is set up, you can run the
interactive Configure
script and hand-pick the way this package is built. If you prefer
instead to use the defaults that Perl auto-detects, prepare Perl
for compilation with:
./configure.gnu --prefix=/usr \
-Dman1dir=/usr/share/man/man1 \
-Dman3dir=/usr/share/man/man3 \
-Dpager="/bin/less -isR" \
-Dlibpth="/usr/local/lib64 /lib64 /usr/lib64" \
-Dcc="gcc ${BUILD64}" \
-Dusethreads
The meaning of the new configure option:
-
-Dlibpth="/usr/local/lib64 /lib64
/usr/lib64"
-
This tells Perl to link against the 64-bit libraries.
-
-Dpager="/bin/less
-isR"
-
This corrects an error in the way that perldoc invokes the
less program.
-
-Dman1dir=/usr/share/man/man1
-Dman3dir=/usr/share/man/man3
-
Since Groff is not installed yet, configure.gnu thinks that we do not
want man pages for Perl. Issuing these parameters overrides
this decision.
-
-Dusethreads
-
This tells Perl to use threads.
Compile the package:
make
To test the results, issue: make
test.
Install the package:
make install
Add a suffix to the perl binary which will be used by the
multilib wrapper installed later:
mv /usr/bin/perl{,-64}
mv /usr/bin/perl5.8.8{,-64}
Now we need to create a link to the multiarch wrapper that lets us
choose which perl installation to use:
ln -sv multiarch_wrapper /usr/bin/perl
ln -sv multiarch_wrapper /usr/bin/perl5.8.8
The value of the USE_ARCH enviornment
variable will decide which perl binary to execute.
USE_ARCH=32 perl
-V:cc will give the value of CC used to build the
32bit perl. The multiarch_wrapper will help later with building
perl extensions and bindings. Without the multiarch_wrapper it is
very hard to setup a 32bit extenstion or binding.