diff --git a/pkgs/development/compilers/llvm/builder.sh b/pkgs/development/compilers/llvm/builder.sh
deleted file mode 100644
index fd44f6bf6a3..00000000000
--- a/pkgs/development/compilers/llvm/builder.sh
+++ /dev/null
@@ -1,84 +0,0 @@
-source $stdenv/setup
-
-
-export NIX_FIXINC_DUMMY=$NIX_BUILD_TOP/dummy
-mkdir $NIX_FIXINC_DUMMY
-
-export X_CFLAGS="-I${gmp}/include -I${mpfr}/include -L${gmp}/lib -L${mpfr}/lib";
-
-# libstdc++ needs this; otherwise it will use /lib/cpp, which is a Bad
-# Thing.
-export CPP="gcc -E"
-
-
-if test "$noSysDirs" = "1"; then
-
-    if test -e $NIX_GCC/nix-support/orig-libc; then
-
-        # Figure out what extra flags to pass to the gcc compilers
-        # being generated to make sure that they use our glibc.
-        extraCFlags="$(cat $NIX_GCC/nix-support/libc-cflags)"
-        extraLDFlags="$(cat $NIX_GCC/nix-support/libc-ldflags) $(cat $NIX_GCC/nix-support/libc-ldflags-before)"
-
-        # Use *real* header files, otherwise a limits.h is generated
-        # that does not include Glibc's limits.h (notably missing
-        # SSIZE_MAX, which breaks the build).
-        export NIX_FIXINC_DUMMY=$(cat $NIX_GCC/nix-support/orig-libc)/include
-        
-    else
-        # Hack: support impure environments.
-        extraCFlags="-isystem /usr/include"
-        extraLDFlags="-L/usr/lib64 -L/usr/lib"
-        export NIX_FIXINC_DUMMY=/usr/include
-    fi
-
-    extraCFlags="-g0 $extraCFlags"
-    extraLDFlags="--strip-debug $extraLDFlags"
-
-    export NIX_EXTRA_CFLAGS=$extraCFlags
-    for i in $extraLDFlags; do
-        export NIX_EXTRA_LDFLAGS="$NIX_EXTRA_LDFLAGS -Wl,$i"
-    done
-
-    makeFlagsArray=( \
-        NATIVE_SYSTEM_HEADER_DIR="$NIX_FIXINC_DUMMY" \
-        SYSTEM_HEADER_DIR="$NIX_FIXINC_DUMMY" \
-        LIMITS_H_TEST=true \
-        X_CFLAGS="$NIX_EXTRA_CFLAGS $NIX_EXTRA_LDFLAGS" \
-        LDFLAGS="$NIX_EXTRA_CFLAGS $NIX_EXTRA_LDFLAGS" \
-        LDFLAGS_FOR_TARGET="$NIX_EXTRA_CFLAGS $NIX_EXTRA_LDFLAGS" \
-        )
-fi
-
-
-preConfigure() {
-    # Perform the build in a different directory.
-    mkdir ../build
-    cd ../build
-    configureScript=../$sourceRoot/configure
-}
-
-
-postInstall() {
-    # Remove precompiled headers for now.  They are very big and
-    # probably not very useful yet.
-    find $out/include -name "*.gch" -exec rm -rf {} \; -prune
-
-    # Remove `fixincl' to prevent a retained dependency on the
-    # previous gcc.
-    rm -rf $out/libexec/gcc/*/*/install-tools
-
-    # Get rid of some "fixed" header files
-    rm -rf $out/lib/gcc/*/*/include/root
-}
-
-
-if test -z "$staticCompiler"; then
-    if test -z "$profiledCompiler"; then
-        buildFlags="bootstrap $buildFlags"
-    else    
-        buildFlags="profiledbootstrap $buildFlags"
-    fi
-fi
-
-genericBuild
diff --git a/pkgs/development/compilers/llvm/llvm-gcc.nix b/pkgs/development/compilers/llvm/llvm-gcc.nix
deleted file mode 100644
index a1f5e031eba..00000000000
--- a/pkgs/development/compilers/llvm/llvm-gcc.nix
+++ /dev/null
@@ -1,67 +0,0 @@
-args : with args; 
-rec {
-  src = fetchurl {
-    url = http://llvm.org/releases/2.2/llvm-gcc4.2-2.2.source.tar.gz;
-    sha256 = "11vjn8wn76cq63jam7y5ralq1b12r6cdipf22nsnzw90srb49qkp";
-  };
-
-  buildInputs = [llvm bison flex perl libtool];
-  configureFlags = [ " --enable-languages=c,c++ " ];
-  makeFlags = [" -f Makefile "];
-
-  phaseNames = [ "doPatch" "preConfigure" "doConfigure" 
-    "doMakeInstall" "postInstall"];
-
-  patches = [ ./no-sys-dirs.patch ];
-
-  preConfigure = fullDepEntry (''
-
-    sed -e 's,^LLVMSRCDIR.*,LLVMSRCDIR := dummy,' \
-        -e 's,\$(LLVMSRCDIR)/include,${llvm}/include,g' \
-        -e 's,^LLVMOBJDIR.*,LLVMOBJDIR := dummy,' \
-        -e 's,\$(LLVMOBJDIR)/include,${llvm}/include,g' \
-        -e 's,^LLVMBINPATH.*,LLVMBINPATH = ${llvm}/bin,' \
-        -i gcc/Makefile.in 
-
-    cd ..
-    mkdir obj install
-    cd obj
-
-    export NIX_FIXINC_DUMMY=$NIX_BUILD_TOP/dummy
-    mkdir $NIX_FIXINC_DUMMY
-
-    export CPP="gcc -E"
-
-    # Figure out what extra flags to pass to the gcc compilers
-    # being generated to make sure that they use our glibc.
-    extraCFlags="$(cat $NIX_GCC/nix-support/libc-cflags)"
-    extraLDFlags="$(cat $NIX_GCC/nix-support/libc-ldflags) $(cat $NIX_GCC/nix-support/libc-ldflags-before)"
-
-    # Use *real* header files, otherwise a limits.h is generated
-    # that does not include Glibc's limits.h (notably missing
-    # SSIZE_MAX, which breaks the build).
-    export NIX_FIXINC_DUMMY=$(cat $NIX_GCC/nix-support/orig-libc)/include
-
-    extraCFlags="-g0 $extraCFlags"
-    extraLDFlags="--strip-debug $extraLDFlags"
-
-    export NIX_EXTRA_CFLAGS=$extraCFlags
-    for i in $extraLDFlags; do
-        export NIX_EXTRA_LDFLAGS="$NIX_EXTRA_LDFLAGS -Wl,$i"
-    done
-
-  '') ["doUnpack" "minInit"];
-  configureCommand = "$(ls ../llvm-gcc*.*.source/configure)";
-
-  postInstall = fullDepEntry (''
-    mv $out/bin/gcc $out/bin/llvm-gcc
-    mv $out/bin/g++ $out/bin/llvm-g++
-  '')["doMakeInstall" "minInit"];
-  
-  name = "llvm-gcc42-2.2";
-  meta = {
-    description = "LLVM GCC frontend";
-  };
-}
-
-  
diff --git a/pkgs/development/compilers/llvm/no-sys-dirs.patch b/pkgs/development/compilers/llvm/no-sys-dirs.patch
deleted file mode 100644
index 3569afe9570..00000000000
--- a/pkgs/development/compilers/llvm/no-sys-dirs.patch
+++ /dev/null
@@ -1,139 +0,0 @@
-diff -rc gcc-4.2.0-orig/Makefile.in gcc-4.2.0/Makefile.in
-*** gcc-4.2.0-orig/Makefile.in	2006-12-29 18:47:06.000000000 +0100
---- gcc-4.2.0/Makefile.in	2007-05-20 21:06:42.000000000 +0200
-***************
-*** 364,369 ****
---- 364,377 ----
-  @host_makefile_frag@
-  ###
-  
-+ CFLAGS += $(NIX_EXTRA_CFLAGS)
-+ CPPFLAGS_FOR_TARGET += $(NIX_EXTRA_CFLAGS)
-+ CXXFLAGS += $(NIX_EXTRA_CFLAGS)
-+ LDFLAGS += $(NIX_EXTRA_LDFLAGS)
-+ LDFLAGS_FOR_TARGET += $(NIX_EXTRA_LDFLAGS)
-+ BOOT_CFLAGS += $(NIX_EXTRA_CFLAGS)
-+ BOOT_LDFLAGS += $(NIX_EXTRA_LDFLAGS)
-+ 
-  # This is the list of directories that may be needed in RPATH_ENVVAR
-  # so that prorgams built for the target machine work.
-  TARGET_LIB_PATH = $(TARGET_LIB_PATH_libstdc++-v3)$(TARGET_LIB_PATH_libmudflap)$(TARGET_LIB_PATH_libssp)$(TARGET_LIB_PATH_libgomp)$(HOST_LIB_PATH_gcc)
-diff -rc gcc-4.2.0-orig/gcc/Makefile.in gcc-4.2.0/gcc/Makefile.in
-*** gcc-4.2.0-orig/gcc/Makefile.in	2007-03-12 05:40:09.000000000 +0100
---- gcc-4.2.0/gcc/Makefile.in	2007-05-20 19:35:13.000000000 +0200
-***************
-*** 396,402 ****
-  MD5_H	    = $(srcdir)/../include/md5.h
-  
-  # Default native SYSTEM_HEADER_DIR, to be overridden by targets.
-! NATIVE_SYSTEM_HEADER_DIR = /usr/include
-  # Default cross SYSTEM_HEADER_DIR, to be overridden by targets.
-  CROSS_SYSTEM_HEADER_DIR = @CROSS_SYSTEM_HEADER_DIR@
-  
---- 396,406 ----
-  MD5_H	    = $(srcdir)/../include/md5.h
-  
-  # Default native SYSTEM_HEADER_DIR, to be overridden by targets.
-! # Nix: we override NATIVE_SYSTEM_HEADER_DIR in order to prevent
-! # `fixinc' from fixing header files in /usr/include.  However,
-! # NATIVE_SYSTEM_HEADER_DIR must point to an existing directory, so set
-! # it to some dummy directory.
-! NATIVE_SYSTEM_HEADER_DIR = $(NIX_FIXINC_DUMMY)
-  # Default cross SYSTEM_HEADER_DIR, to be overridden by targets.
-  CROSS_SYSTEM_HEADER_DIR = @CROSS_SYSTEM_HEADER_DIR@
-  
-***************
-*** 3066,3072 ****
-    -DGPLUSPLUS_INCLUDE_DIR=\"$(gcc_gxx_include_dir)\" \
-    -DGPLUSPLUS_TOOL_INCLUDE_DIR=\"$(gcc_gxx_include_dir)/$(target_noncanonical)\" \
-    -DGPLUSPLUS_BACKWARD_INCLUDE_DIR=\"$(gcc_gxx_include_dir)/backward\" \
-!   -DLOCAL_INCLUDE_DIR=\"$(local_includedir)\" \
-    -DCROSS_INCLUDE_DIR=\"$(CROSS_SYSTEM_HEADER_DIR)\" \
-    -DTOOL_INCLUDE_DIR=\"$(gcc_tooldir)/include\" \
-    @TARGET_SYSTEM_ROOT_DEFINE@
---- 3070,3076 ----
-    -DGPLUSPLUS_INCLUDE_DIR=\"$(gcc_gxx_include_dir)\" \
-    -DGPLUSPLUS_TOOL_INCLUDE_DIR=\"$(gcc_gxx_include_dir)/$(target_noncanonical)\" \
-    -DGPLUSPLUS_BACKWARD_INCLUDE_DIR=\"$(gcc_gxx_include_dir)/backward\" \
-!   -DLOCAL_INCLUDE_DIR=\"/no-such-dir\" \
-    -DCROSS_INCLUDE_DIR=\"$(CROSS_SYSTEM_HEADER_DIR)\" \
-    -DTOOL_INCLUDE_DIR=\"$(gcc_tooldir)/include\" \
-    @TARGET_SYSTEM_ROOT_DEFINE@
-diff -rc gcc-4.2.0-orig/gcc/cppdefault.c gcc-4.2.0/gcc/cppdefault.c
-*** gcc-4.2.0-orig/gcc/cppdefault.c	2006-01-20 22:00:03.000000000 +0100
---- gcc-4.2.0/gcc/cppdefault.c	2007-05-20 17:16:44.000000000 +0200
-***************
-*** 41,46 ****
---- 41,50 ----
-  # undef CROSS_INCLUDE_DIR
-  #endif
-  
-+ #undef LOCAL_INCLUDE_DIR
-+ #undef SYSTEM_INCLUDE_DIR
-+ #undef STANDARD_INCLUDE_DIR
-+ 
-  /* APPLE LOCAL begin mainline 4.3 2006-12-13 CROSS_DIRECTORY_STRUCTURE 4697325 */
-  #if defined (CROSS_DIRECTORY_STRUCTURE) && !defined (TARGET_SYSTEM_ROOT)
-  /* APPLE LOCAL end mainline 4.3 2006-12-13 CROSS_DIRECTORY_STRUCTURE 4697325 */
-diff -rc gcc-4.2.0-orig/gcc/gcc.c gcc-4.2.0/gcc/gcc.c
-*** gcc-4.2.0-orig/gcc/gcc.c	2007-03-05 21:37:05.000000000 +0100
---- gcc-4.2.0/gcc/gcc.c	2007-05-20 17:49:48.000000000 +0200
-***************
-*** 1449,1458 ****
-  /* Default prefixes to attach to command names.  */
-  
-  #ifndef STANDARD_STARTFILE_PREFIX_1
-! #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
-  #endif
-  #ifndef STANDARD_STARTFILE_PREFIX_2
-! #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
-  #endif
-  
-  #ifdef CROSS_COMPILE  /* Don't use these prefixes for a cross compiler.  */
---- 1449,1458 ----
-  /* Default prefixes to attach to command names.  */
-  
-  #ifndef STANDARD_STARTFILE_PREFIX_1
-! #define STANDARD_STARTFILE_PREFIX_1 ""
-  #endif
-  #ifndef STANDARD_STARTFILE_PREFIX_2
-! #define STANDARD_STARTFILE_PREFIX_2 ""
-  #endif
-  
-  #ifdef CROSS_COMPILE  /* Don't use these prefixes for a cross compiler.  */
-***************
-*** 1473,1480 ****
-  #endif
-  
-  static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
-! static const char *const standard_exec_prefix_1 = "/usr/libexec/gcc/";
-! static const char *const standard_exec_prefix_2 = "/usr/lib/gcc/";
-  static const char *md_exec_prefix = MD_EXEC_PREFIX;
-  
-  static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
---- 1473,1480 ----
-  #endif
-  
-  static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
-! static const char *const standard_exec_prefix_1 = "/no-such-path/";
-! static const char *const standard_exec_prefix_2 = "/no-such-path/";
-  static const char *md_exec_prefix = MD_EXEC_PREFIX;
-  
-  static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
-diff -rc gcc-4.2.0-orig/ltconfig gcc-4.2.0/ltconfig
-*** gcc-4.2.0-orig/ltconfig	2007-02-14 18:08:35.000000000 +0100
---- gcc-4.2.0/ltconfig	2007-05-20 22:16:24.000000000 +0200
-***************
-*** 2322,2327 ****
---- 2322,2332 ----
-  # A language-specific compiler.
-  CC=$CC
-  
-+ # Ugly hack to get libmudflap (and possibly other libraries) to build.
-+ # Libtool filters out \`-B' flags when linking (why?), so the \`-B' flag
-+ # to Glibc gets lost.  Here we forcibly add it to any invocation.
-+ CC="\$CC $NIX_EXTRA_CFLAGS $NIX_EXTRA_LDFLAGS"
-+ 
-  # Is the compiler the GNU C compiler?
-  with_gcc=$with_gcc
-  
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e0069f96d64..58358cf85d1 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2513,11 +2513,6 @@ let
     inherit fetchurl fetchsvn stdenv gcc flex perl libtool groff;
   };
 
-  llvmGCC = builderDefsPackage (import ../development/compilers/llvm/llvm-gcc.nix) {
-    flex=flex2535;
-    inherit llvm perl libtool bison;
-  };
-
   mitscheme = import ../development/compilers/mit-scheme {
     inherit fetchurl stdenv gnum4;
   };