* Qt: add optional support for MySQL.

* MythTV: the setup program works :-).
* Added XmlTV.  This requires a huge number of Perl modules, so...
* Added a generic builder for Perl modules.  I'm lazy so the modules
  are defined directly in all-packages-generic.nix.  The generic
  builder also patches Perl scripts to include a hard-coded Perl
  module search path (i.e., similar to an RPATH in ELF executables).

svn path=/nixpkgs/trunk/; revision=2083

pkgs/development/perl-modules/generic/builder.sh

@@ -0,0 +1,45 @@
+addInputsHook=addInputsHook
+addInputsHook() {
+    # Should be in a Perl setup hook.
+    envHooks=(${envHooks[@]} addPerlLibs)
+}
+
+addPerlLibs() {
+    PERL5LIB="$PERL5LIB${PERL5LIB:+:}$1/lib/site_perl"
+}
+
+. $stdenv/setup
+
+PERL5LIB="$PERL5LIB${PERL5LIB:+:}$out/lib/site_perl"
+
+export PERL5LIB
+
+oldIFS=$IFS
+IFS=:
+perlFlags=
+for i in $PERL5LIB; do
+    perlFlags="$perlFlags -I$i"
+done
+IFS=$oldIFS
+echo "$perlFlags"
+
+preConfigure=preConfigure
+preConfigure() {
+
+    find . | while read fn; do
+        if test -f "$fn"; then
+            first=$(dd if="$fn" count=2 bs=1 2> /dev/null)
+            if test "$first" = "#!"; then
+                echo "patching $fn..."
+                sed < "$fn" > "$fn".tmp \
+                    -e "s|^#\!\(.*/perl.*\)$|#\! \1$perlFlags|"
+                if test -x "$fn"; then chmod +x "$fn".tmp; fi
+                mv "$fn".tmp "$fn"
+            fi
+        fi
+    done
+
+    perl Makefile.PL PREFIX=$out $makeMakerFlags
+}
+
+genericBuild

pkgs/development/perl-modules/generic/default.nix

@@ -0,0 +1,8 @@
+perl:
+
+attrs:
+
+perl.stdenv.mkDerivation (attrs // {
+  builder = ./builder.sh;
+  buildInputs = [(if attrs ? buildInputs then attrs.buildInputs else []) perl];
+})