Add GNU Texinfo 4.9, use it to produce GCC 4.x documentation.

svn path=/nixpkgs/trunk/; revision=10805

pkgs/development/compilers/gcc-4.0/default.nix

@@ -1,7 +1,8 @@
 { stdenv, fetchurl, noSysDirs
 , langC ? true, langCC ? true, langF77 ? false
 , profiledCompiler ? false
-,gmp ? null , mpfr ? null
+, gmp ? null , mpfr ? null
+, texinfo ? null
 }:
 
 assert langC;
@@ -24,6 +25,7 @@ stdenv.mkDerivation {
   buildInputs = [] 
 	++ (if gmp != null then [gmp] else [])
 	++ (if mpfr != null then [mpfr] else [])
+	++ (if texinfo != null then [texinfo] else [])
 	;
 
   configureFlags = "

pkgs/development/compilers/gcc-4.1/default.nix

@@ -4,6 +4,7 @@
 , staticCompiler ? false
 , gmp ? null
 , mpfr ? null
+, texinfo ? null
 }:
 
 assert langC || langF77;
@@ -66,5 +67,6 @@ stdenv.mkDerivation ({
 // (if gmp != null || mpfr != null then {
   buildInputs = []
     ++ (if gmp != null then [gmp] else [])
-    ++ (if mpfr != null then [mpfr] else []);
+    ++ (if mpfr != null then [mpfr] else [])
+    ++ (if texinfo != null then [texinfo] else []);
 } else {}))

pkgs/development/compilers/gcc-4.2/default.nix

@@ -2,6 +2,7 @@
 , langC ? true, langCC ? true, langF77 ? false
 , profiledCompiler ? false
 , staticCompiler ? false
+, texinfo ? null
 }:
 
 assert langC;
@@ -32,6 +33,9 @@ stdenv.mkDerivation {
     
   inherit noSysDirs profiledCompiler staticCompiler;
 
+  buildInputs = []
+    ++ optional (texinfo != null) [texinfo];
+
   configureFlags = "
     --disable-multilib
     --disable-libstdcxx-pch

pkgs/development/tools/misc/texinfo/4.9.nix

@@ -0,0 +1,10 @@
+{stdenv, fetchurl, ncurses}:
+
+stdenv.mkDerivation {
+  name = "texinfo-4.9";
+  src = fetchurl {
+    url = mirror://gnu/texinfo/texinfo-4.9.tar.bz2;
+    sha256 = "0h7q9h405m88fjj067brzniiv8306ryl087pgjpmbpd2jci9h6g7";
+  };
+  buildInputs = [ncurses];
+}