nixpkgs/pkgs/development/interpreters/perl-5.10/default.nix
Peter Simons 67cea803fa perl-5.8 and perl-5.10: fixed build on MacOS X
On MacOS X, we used to use the native perl interpreter from /usr/bin.
Unfortunately, that interpreter fails to build a number of packages
(Subversion, Git, etc. ...), because it assumes knowledge about the underlying
C compiler that is not valid for the compiler used by Nix. For example,
/usr/bin/perl assumes that the compiler can build binaries for both the ppc and
the x86 architecture. /usr/bin/FCC can do that, but the gcc from Nix can't.

The solution is to compile Perl 5.10 via Nix so that it can properly configure
itself. However, note that the resulting binary is impure: it will find headers
in /usr/include and libraries in /usr/lib -- something a pure perl binary
wouldn't do. In this respect our Nix-compiled perl binary is not better than
the native one from /usr/bin -- it's just more accurately configured.

svn path=/nixpkgs/trunk/; revision=17618
2009-10-02 16:26:05 +00:00

56 lines
1.8 KiB
Nix

{stdenv, fetchurl}:
stdenv.mkDerivation {
name = "perl-5.10.0";
src = fetchurl {
url = mirror://cpan/src/perl-5.10.0.tar.gz;
sha256 = "0bivbz15x02m02gqs6hs77cgjr2msfrhnvp5xqk359jg6w6llill";
};
patches = [
# This patch does the following:
# 1) Do use the PATH environment variable to find the `pwd' command.
# By default, Perl will only look for it in /lib and /usr/lib.
# !!! what are the security implications of this?
# 2) Force the use of <errno.h>, not /usr/include/errno.h, on Linux
# systems. (This actually appears to be due to a bug in Perl.)
./no-sys-dirs.patch
];
# Build a thread-safe Perl with a dynamic libperls.o. We need the
# "installstyle" option to ensure that modules are put under
# $out/lib/perl5 - this is the general default, but because $out
# contains the string "perl", Configure would select $out/lib.
configureFlags = ''
-de -Dcc=gcc -Uinstallusrbinperl -Dinstallstyle=lib/perl5 -Duseshrplib
${if stdenv ? glibc then "-Dusethreads" else ""}
'';
configureScript = "${stdenv.shell} ./Configure";
dontAddPrefix = true;
preConfigure =
''
configureFlags="$configureFlags -Dprefix=$out -Dman1dir=$out/share/man/man1 -Dman3dir=$out/share/man/man3"
if test "$NIX_ENFORCE_PURITY" = "1"; then
case $system in
*-linux) LIBC=$(cat $NIX_GCC/nix-support/orig-libc) ;;
*-darwin) LIBC=/usr ;;
*) echo unsupported system $system; exit 1 ;;
esac
configureFlags="$configureFlags -Dlocincpth=$LIBC/include -Dloclibpth=$LIBC/lib"
fi
'';
preBuild =
''
# Make Cwd work on NixOS (where we don't have a /bin/pwd).
substituteInPlace lib/Cwd.pm --replace "'/bin/pwd'" "'$(type -tP pwd)'"
'';
setupHook = ./setup-hook.sh;
}