diff --git a/pkgs/development/compilers/fpc/binary.nix b/pkgs/development/compilers/fpc/binary.nix
index cf13ab6f5954..f160150d8b53 100644
--- a/pkgs/development/compilers/fpc/binary.nix
+++ b/pkgs/development/compilers/fpc/binary.nix
@@ -1,18 +1,18 @@
 { stdenv, fetchurl }:
 
 stdenv.mkDerivation {
-  name = "fpc-2.6.0-binary";
+  name = "fpc-3.0.0-binary";
 
   src =
     if stdenv.hostPlatform.system == "i686-linux" then
       fetchurl {
-        url = "mirror://sourceforge/project/freepascal/Linux/2.6.0/fpc-2.6.0.i386-linux.tar";
-        sha256 = "08yklvrfxvk59bxsd4rh1i6s3cjn0q06dzjs94h9fbq3n1qd5zdf";
+        url = "mirror://sourceforge/project/freepascal/Linux/3.0.0/fpc-3.0.0.i386-linux.tar";
+        sha256 = "0h3f1dgs1zsx7vvk9kg67anjvgw5sslfbmjblif7ishbcp3k3g5k";
       }
     else if stdenv.hostPlatform.system == "x86_64-linux" then
       fetchurl {
-        url = "mirror://sourceforge/project/freepascal/Linux/2.6.0/fpc-2.6.0.x86_64-linux.tar";
-        sha256 = "0k9vi75k39y735fng4jc2vppdywp82j4qhzn7x4r6qjkad64d8lx";
+        url = "mirror://sourceforge/project/freepascal/Linux/3.0.0/fpc-3.0.0.x86_64-linux.tar";
+        sha256 = "1m2xx3nda45cb3zidbjgdr8kddd19zk0khvp7xxdlclszkqscln9";
       }
     else throw "Not supported on ${stdenv.hostPlatform.system}.";
 
diff --git a/pkgs/development/compilers/fpc/default.nix b/pkgs/development/compilers/fpc/default.nix
index 7bddafc6ff59..a3f5e30aea82 100644
--- a/pkgs/development/compilers/fpc/default.nix
+++ b/pkgs/development/compilers/fpc/default.nix
@@ -3,20 +3,22 @@
 let startFPC = import ./binary.nix { inherit stdenv fetchurl; }; in
 
 stdenv.mkDerivation rec {
-  version = "3.0.0";
+  version = "3.0.4";
   pname = "fpc";
 
   src = fetchurl {
     url = "mirror://sourceforge/freepascal/fpcbuild-${version}.tar.gz";
-    sha256 = "1v40bjp0kvsi8y0mndqvvhnsqjfssl2w6wpfww51j4rxblfkp4fm";
+    sha256 = "0xjyhlhz846jbnp12y68c7nq4xmp4i65akfbrjyf3r62ybk18rgn";
   };
 
   buildInputs = [ startFPC gawk ];
+  glibc = stdenv.cc.libc.out;
 
   preConfigure =
     if stdenv.hostPlatform.system == "i686-linux" || stdenv.hostPlatform.system == "x86_64-linux" then ''
       sed -e "s@'/lib/ld-linux[^']*'@'''@" -i fpcsrc/compiler/systems/t_linux.pas
       sed -e "s@'/lib64/ld-linux[^']*'@'''@" -i fpcsrc/compiler/systems/t_linux.pas
+      sed -e "s@/lib64[^']*@${glibc}/lib@" -i fpcsrc/compiler/systems/t_linux.pas
     '' else "";
 
   makeFlags = [ "NOGDB=1" "FPC=${startFPC}/bin/fpc" ];
diff --git a/pkgs/development/compilers/fpc/lazarus.nix b/pkgs/development/compilers/fpc/lazarus.nix
index 1b3f4d168ee9..faf040859991 100644
--- a/pkgs/development/compilers/fpc/lazarus.nix
+++ b/pkgs/development/compilers/fpc/lazarus.nix
@@ -4,11 +4,11 @@
 }:
 stdenv.mkDerivation rec {
   pname = "lazarus";
-  version = "1.8.4";
+  version = "2.0.6";
 
   src = fetchurl {
     url = "mirror://sourceforge/lazarus/Lazarus%20Zip%20_%20GZip/Lazarus%20${version}/lazarus-${version}.tar.gz";
-    sha256 = "1s8hdip973fc1lynklddl0mvg2jd2lzkfk8hzb8jlchs6jn0362s";
+    sha256 = "0v1ax6039nm2bksh646znrkah20ak2zmhaz5p3mz2p60y2qazkc2";
   };
 
   buildInputs = [