uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/compilers/as31/0000-getline-break.patch

@@ -0,0 +1,24 @@
+diff --git old/as31/run.c new/as31/run.c
+index 28c5317..9e5263b 100644
+--- old/as31/run.c
++++ new/as31/run.c
+@@ -113,7 +113,8 @@ int run_as31(const char *infile, int lst, int use_stdout,
+ 	}
+ 
+ 	while (!feof(finPre)) {
+-		getline(&lineBuffer,&sizeBuf,finPre);
++		if (getline(&lineBuffer,&sizeBuf,finPre) == -1)
++			break;
+ 		if ((includePtr=strstr(lineBuffer,INC_CMD))) {
+ 			includePtr=includePtr+strlen(INC_CMD);
+ 			while ((*includePtr==' ')||		//move includePtr to filename
+@@ -138,7 +139,8 @@ int run_as31(const char *infile, int lst, int use_stdout,
+ 				mesg_f("Cannot open include file: %s\n",includePtr);
+ 			} else {
+ 				while (!feof(includeFile)) {
+-					getline(&incLineBuffer,&incSizeBuf,includeFile);
++					if (getline(&incLineBuffer,&incSizeBuf,includeFile) == -1)
++						break;
+ 					fprintf(fin,"%s",incLineBuffer);
+ 					if (strlen(incLineBuffer)) {
+ 						incLineCount++;

pkgs/development/compilers/as31/default.nix

@@ -0,0 +1,43 @@
+{ lib
+, stdenv
+, fetchurl
+, bison
+}:
+
+stdenv.mkDerivation rec {
+  pname = "as31";
+  version = "2.3.1";
+
+  src = fetchurl {
+    url = "http://wiki.erazor-zone.de/_media/wiki:projects:linux:as31:${pname}-${version}.tar.gz";
+    name = "${pname}-${version}.tar.gz";
+    hash = "sha256-zSEyWHFon5nyq717Mpmdv1XZ5Hz0e8ZABqsP8M83c1U=";
+  };
+
+  patches = [
+    # Check return value of getline in run.c
+    ./0000-getline-break.patch
+  ];
+
+  postPatch = ''
+    # parser.c is generated from parser.y; it is better to generate it via bison
+    # instead of using the prebuilt one, especially in x86_64
+    rm -f as31/parser.c
+  '';
+
+  preConfigure = ''
+    chmod +x configure
+  '';
+
+  nativeBuildInputs = [
+    bison
+  ];
+
+  meta = with lib; {
+    homepage = "http://wiki.erazor-zone.de/wiki:projects:linux:as31";
+    description = "An 8031/8051 assembler";
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ AndersonTorres ];
+    platforms = platforms.unix;
+  };
+}