diff --git a/cd.nix b/cd.nix
index 1e4e24f..3125925 100644
--- a/cd.nix
+++ b/cd.nix
@@ -47,10 +47,24 @@ stdenv.mkDerivation rec {
     -Wno-incompatible-pointer-types
   '';
 
+  pc = ''
+prefix=${placeholder "out"}
+exec_prefix=${placeholder "out"}
+libdir=${placeholder "out"}/lib
+includedir=${placeholder "out"}/include
+
+Name: CD
+Description: A vector graphics toolkit with device independent output
+Version: ${version}
+Libs: -L${placeholder "out"}/lib -lcd
+Cflags: -I${placeholder "out"}/include
+Requires: im gtk+-2.0 glu ftgl
+'';
+  
   installPhase = ''
     runHook preInstall
 
-    mkdir -p $out/{lib,include}
+    mkdir -p $out/{include,lib/pkgconfig}
 
     cp -vr include/* $out/include/
 
@@ -60,6 +74,10 @@ stdenv.mkDerivation rec {
     cp -v lib/Linux*/Lua*/*.so $out/lib/
     cp -v lib/Linux*/Lua*/*.a $out/lib/ || true
 
+  cat > $out/lib/pkgconfig/cd.pc <<EOF
+${pc}
+EOF
+
     runHook postInstall
   '';
   
diff --git a/im.nix b/im.nix
index f72c6e4..9f74393 100644
--- a/im.nix
+++ b/im.nix
@@ -31,6 +31,20 @@ stdenv.mkDerivation rec {
     zlib
   ];
 
+  pc = ''
+prefix=${placeholder "out"}
+exec_prefix=${placeholder "out"}
+libdir=${placeholder "out"}/lib
+includedir=${placeholder "out"}/include
+
+Name: IM
+Description: A toolkit for image representation, storage, capture and processing
+Version: ${version}
+Libs: -L${placeholder "out"} -lim
+Cflags: -I${placeholder "out"}/include
+Requires: fftw3 libpng zlib
+'';
+  
   postPatch = ''
     patchShebangs .
     sed -i '1i#include <unistd.h>' src/libjasper2/base/jas_stream.c
@@ -41,7 +55,7 @@ stdenv.mkDerivation rec {
   installPhase = ''
     runHook preInstall
 
-    mkdir -p $out/{lib,include}
+    mkdir -p $out/{include,lib/pkgconfig}
 
     cp -vr include/* $out/include/
 
@@ -51,6 +65,11 @@ stdenv.mkDerivation rec {
     cp -v lib/Linux*/Lua*/*.so $out/lib/
     cp -v lib/Linux*/Lua*/*.a $out/lib/ || true
 
+    # Since IM doesn't supply it, provide pkg-config file.
+  cat > $out/lib/pkgconfig/im.pc <<EOF
+${pc}
+EOF
+
     runHook postInstall
   '';
   
diff --git a/iup.nix b/iup.nix
index 794eacc..6c74771 100644
--- a/iup.nix
+++ b/iup.nix
@@ -45,6 +45,8 @@ stdenv.mkDerivation rec {
     sed -i 's/\biupluaweb\b//g' srclua5/Makefile
     substituteInPlace srclua5/config.mak \
       --replace-fail "NO_LUALINK = Yes" "NO_LUALINK ="
+
+    # Since IUP doesn't provide it, supply pkg-config file.
   '';
   
   makeFlags = [
@@ -65,10 +67,24 @@ stdenv.mkDerivation rec {
     -Wno-incompatible-pointer-types
   '';
 
+  pc = ''
+prefix=${placeholder "out"}
+exec_prefix=${placeholder "out"}
+libdir=${placeholder "out"}/lib
+includedir=${placeholder "out"}/include
+
+Name: IUP
+Description: A portable toolkit for building graphical user interfaces
+Version: ${version}
+Libs: -L${placeholder "out"}/lib -liup
+Cflags: -I${placeholder "out"}/include
+Requires: cd im gtk+-2.0 glu ftgl
+'';
+  
   installPhase = ''
     runHook preInstall
 
-    mkdir -p $out/{bin,etc,lib,include,share/lua/5.1}
+    mkdir -p $out/{bin,etc,include,lib/pkgconfig,share/lua/5.1}
     mkdir -p $out/share/lua/5.1/{ctrl,elem,gl,lh,scripter}
 
     cp -vr include/* $out/include/
@@ -79,7 +95,7 @@ stdenv.mkDerivation rec {
     cp -v lib/Linux*/Lua*/*.so $out/lib/
     cp -v lib/Linux*/Lua*/*.a $out/lib/ || true
 
-    cp -vr bin/Linux612_64/* $out/bin/
+    cp -vr bin/Linux*/* $out/bin/
     chmod +x $out/bin/*
 
     cp -v srclua5/*.lua "$out/share/lua/5.1/"
@@ -92,6 +108,10 @@ stdenv.mkDerivation rec {
 
     cp -r etc/* $out/etc
 
+    cat > $out/lib/pkgconfig/iup.pc <<EOF
+${pc}
+EOF
+
     runHook postInstall
   '';