I make qcad compile further... and more importantly, I make it fail the build

if the compilation fails. It was not so.

But it still needs some patching to build.

svn path=/nixpkgs/trunk/; revision=30189

pkgs/applications/misc/qcad/default.nix

@@ -19,15 +19,26 @@ stdenv.mkDerivation {
 
   buildInputs = [ qt3 libpng libXext libX11 ];
 
-  patchPhase = ''
+  prePatch = ''
     sed -i 's/-pedantic//' mkspecs/defs.pro
-    patch -p1 < ${ ./qcad-2.0.4.0-1.src-intptr.patch /* taken from gentoo, fixes amd64 compilation issue */}
+    # patch -p1 < ${ ./qcad-2.0.4.0-1.src-intptr.patch }
   '';
+  patches = [
+    /* taken from gentoo, fixes amd64 compilation issue */
+    ./qcad-2.0.4.0-1.src-intptr.patch
+    /* taken from gentoo, fixes gcc 4.3 or above compilation issue */
+    ./qcad-2.0.4.0-gcc43.patch
+  ];
 
   # probably there is more to be done. But this seems to work for now (eg see gentoo ebuild)
   installPhase = ''
     ensureDir $out/{bin,share}
     cp -r qcad $out/share
+
+    # The compilation does not fail with error code. But qcad will not exist
+    # if it failed.
+    test -f $out/share/qcad/qcad
+
     cat >> $out/bin/qcad << EOF
     #!/bin/sh
     cd $out/share/qcad

pkgs/applications/misc/qcad/qcad-2.0.4.0-gcc43.patch

@@ -0,0 +1,45 @@
+diff -Naur qcad-2.0.4.0-1.src/dxflib/src/dl_writer_ascii.cpp qcad-2.0.4.0-1.src.new/dxflib/src/dl_writer_ascii.cpp
+--- qcad-2.0.4.0-1.src/dxflib/src/dl_writer_ascii.cpp	2004-09-14 16:13:01.000000000 -0400
++++ qcad-2.0.4.0-1.src.new/dxflib/src/dl_writer_ascii.cpp	2008-04-27 08:35:47.000000000 -0400
+@@ -30,6 +30,7 @@
+ #endif // _MSC_VER > 1000
+ 
+ #include <stdio.h>
++#include <cstring>
+ 
+ #include "dl_writer_ascii.h"
+ #include "dl_exception.h"
+diff -Naur qcad-2.0.4.0-1.src/dxflib/src/dl_writer.h qcad-2.0.4.0-1.src.new/dxflib/src/dl_writer.h
+--- qcad-2.0.4.0-1.src/dxflib/src/dl_writer.h	2004-09-14 16:13:01.000000000 -0400
++++ qcad-2.0.4.0-1.src.new/dxflib/src/dl_writer.h	2008-04-27 08:35:48.000000000 -0400
+@@ -34,6 +34,7 @@
+ 
+ 
+ #include <iostream>
++#include <cstring>
+ 
+ #include "dl_attributes.h"
+ 
+diff -Naur qcad-2.0.4.0-1.src/qcadactions/src/rs_actionzoompan.cpp qcad-2.0.4.0-1.src.new/qcadactions/src/rs_actionzoompan.cpp
+--- qcad-2.0.4.0-1.src/qcadactions/src/rs_actionzoompan.cpp	2004-09-14 16:13:03.000000000 -0400
++++ qcad-2.0.4.0-1.src.new/qcadactions/src/rs_actionzoompan.cpp	2008-04-27 08:35:48.000000000 -0400
+@@ -28,6 +28,7 @@
+ #include "rs_snapper.h"
+ #include "rs_point.h"
+ 
++#include <cstdlib>
+ 
+ RS_ActionZoomPan::RS_ActionZoomPan(RS_EntityContainer& container,
+                                    RS_GraphicView& graphicView)
+diff -Naur qcad-2.0.4.0-1.src/qcadlib/src/information/rs_information.h qcad-2.0.4.0-1.src.new/qcadlib/src/information/rs_information.h
+--- qcad-2.0.4.0-1.src/qcadlib/src/information/rs_information.h	2004-09-14 16:13:02.000000000 -0400
++++ qcad-2.0.4.0-1.src.new/qcadlib/src/information/rs_information.h	2008-04-27 08:35:48.000000000 -0400
+@@ -31,7 +31,7 @@
+ #include "rs_line.h"
+ #include "rs_arc.h"
+ 
+-
++#include <cstdlib>
+ 
+ /**
+  * Class for getting information about entities. This includes