These patches are required to build with a modern GCC; most of them
are taken from the Debian package. Upstream has disappeared.

diff -r -u einstein-2.0.orig/convert.h einstein-2.0/convert.h
--- einstein-2.0.orig/convert.h	2005-08-14 04:40:58.000000000 +0200
+++ einstein-2.0/convert.h	2016-03-05 18:25:08.488917021 +0100
@@ -5,6 +5,7 @@
 #include <iostream>
 #include <sstream>
 #include <string>
+#include <typeinfo>
 
 #include "exceptions.h"
 #include "unicode.h"
diff -r -u einstein-2.0.orig/descr.cpp einstein-2.0/descr.cpp
--- einstein-2.0.orig/descr.cpp	2005-08-17 15:42:29.000000000 +0200
+++ einstein-2.0/descr.cpp	2016-03-05 18:29:27.960352230 +0100
@@ -139,9 +139,9 @@
 {
     currentPage = 0;
     //area.add(parentArea, false);
-    titleFont = new Font(L"nova.ttf", 26);
-    buttonFont = new Font(L"laudcn2.ttf", 14);
-    textFont = new Font(L"laudcn2.ttf", 16);
+    titleFont = new Font(L"DejaVuSans.ttf", 26);
+    buttonFont = new Font(L"DejaVuSans.ttf", 14);
+    textFont = new Font(L"DejaVuSans.ttf", 16);
     textHeight = (int)(textFont->getHeight(L"A") * 1.0);
     text = new TextParser(msg(L"rulesText"), *textFont, START_X, START_Y, 
                 CLIENT_WIDTH, CLIENT_HEIGHT);
diff -r -u einstein-2.0.orig/font.h einstein-2.0/font.h
--- einstein-2.0.orig/font.h	2005-08-16 00:33:17.000000000 +0200
+++ einstein-2.0/font.h	2016-03-05 18:22:05.563794039 +0100
@@ -3,7 +3,7 @@
 
 
 #include <string>
-#include <SDL_ttf.h>
+#include <SDL/SDL_ttf.h>
 
 
 class Font
diff -r -u einstein-2.0.orig/formatter.cpp einstein-2.0/formatter.cpp
--- einstein-2.0.orig/formatter.cpp	2005-08-14 04:40:58.000000000 +0200
+++ einstein-2.0/formatter.cpp	2016-03-05 18:18:41.146882565 +0100
@@ -58,7 +58,7 @@
             if ((c.type == INT_ARG) || (c.type == STRING_ARG) ||
                     (c.type == FLOAT_ARG) || (c.type == DOUBLE_ARG))
             {
-                int no = (int)c.data;
+                long no = (long)c.data;
                 args[no - 1] = c.type;
             }
         }
@@ -123,7 +123,7 @@
 std::wstring Formatter::format(std::vector<ArgValue*> &argValues) const
 {
     std::wstring s;
-    int no;
+    long no;
 
     for (int i = 0; i < commandsCnt; i++) {
         Command *cmd = &commands[i];
@@ -135,8 +135,8 @@
                 
             case STRING_ARG:
             case INT_ARG:
-                no = (int)cmd->data - 1;
-                if (no < (int)argValues.size())
+                no = (long)cmd->data - 1;
+                if (no < (long)argValues.size())
                     s += argValues[no]->format(cmd);
                 break;
 
diff -r -u einstein-2.0.orig/game.cpp einstein-2.0/game.cpp
--- einstein-2.0.orig/game.cpp	2005-08-23 00:44:54.000000000 +0200
+++ einstein-2.0/game.cpp	2016-03-05 18:29:27.960352230 +0100
@@ -33,7 +33,7 @@
     screen.draw(8, 10, tile);
     SDL_FreeSurface(tile);
     
-    Font titleFont(L"nova.ttf", 28);
+    Font titleFont(L"DejaVuSans.ttf", 28);
     titleFont.draw(screen.getSurface(), 20, 20, 255,255,0, true, 
             msg(L"einsteinPuzzle"));
     
@@ -89,7 +89,7 @@
 {
     lastRun = elapsed = lastUpdate = 0;
     stop();
-    font = new Font(L"luximb.ttf", 16);
+    font = new Font(L"DejaVuSans.ttf", 16);
 }
 
 Watch::Watch(std::istream &stream)
@@ -97,7 +97,7 @@
     elapsed = readInt(stream);
     lastUpdate = 0;
     stop();
-    font = new Font(L"luximb.ttf", 16);
+    font = new Font(L"DejaVuSans.ttf", 16);
 }
 
 Watch::~Watch()
@@ -178,7 +178,7 @@
             watch->stop();
             Area area;
             area.add(background, false);
-            Font font(L"laudcn2.ttf", 16);
+            Font font(L"DejaVuSans.ttf", 16);
             area.add(new Window(280, 275, 240, 50, L"greenpattern.bmp", 6));
             area.add(new Label(&font, 280, 275, 240, 50, Label::ALIGN_CENTER,
                 Label::ALIGN_MIDDLE, 255,255,0, msg(L"paused")));
@@ -209,7 +209,7 @@
         virtual void doAction() {
             sound->play(L"applause.wav");
             watch->stop();
-            Font font(L"laudcn2.ttf", 20);
+            Font font(L"DejaVuSans.ttf", 20);
             showMessageWindow(gameArea, L"marble1.bmp", 
                     500, 70, &font, 255,0,0, msg(L"won"));
             gameArea->draw();
@@ -257,8 +257,8 @@
             sound->play(L"glasbk2.wav");
             bool restart = false;
             bool newGame = false;
-            Font font(L"laudcn2.ttf", 24);
-            Font btnFont(L"laudcn2.ttf", 14);
+            Font font(L"DejaVuSans.ttf", 24);
+            Font btnFont(L"DejaVuSans.ttf", 14);
             Area area;
             area.add(gameArea);
             area.add(new Window(220, 240, 360, 140, L"redpattern.bmp", 6));
@@ -329,7 +329,7 @@
         CheatCommand(Area *a) { gameArea = a; };
         
         virtual void doAction() {
-            Font font(L"nova.ttf", 30);
+            Font font(L"DejaVuSans.ttf", 30);
             showMessageWindow(gameArea, L"darkpattern.bmp", 
                     500, 100, &font, 255,255,255, 
                     msg(L"iddqd"));
@@ -475,7 +475,7 @@
     drawWallpaper(L"rain.bmp");
     Window window(230, 260, 340, 80, L"greenpattern.bmp", 6);
     window.draw();
-    Font font(L"laudcn2.ttf", 16);
+    Font font(L"DejaVuSans.ttf", 16);
     Label label(&font, 280, 275, 240, 50, Label::ALIGN_CENTER,
                 Label::ALIGN_MIDDLE, 255,255,0, msg(L"loading"));
     label.draw();
@@ -533,7 +533,7 @@
 void Game::run()
 {
     Area area;
-    Font btnFont(L"laudcn2.ttf", 14);
+    Font btnFont(L"DejaVuSans.ttf", 14);
     
     area.setTimer(300, watch);
 
diff -r -u einstein-2.0.orig/main.cpp einstein-2.0/main.cpp
--- einstein-2.0.orig/main.cpp	2005-09-26 12:32:54.000000000 +0200
+++ einstein-2.0/main.cpp	2016-03-05 18:29:27.960352230 +0100
@@ -2,7 +2,7 @@
 #include <iostream>
 #include <SDL.h>
 #include <SDL_main.h>
-#include <SDL_ttf.h>
+#include <SDL/SDL_ttf.h>
 #include "main.h"
 #include "utils.h"
 #include "storage.h"
@@ -78,7 +78,7 @@
 /*static void checkBetaExpire()
 {
     if (1124832535L + 60L*60L*24L*40L < time(NULL)) {
-        Font font(L"laudcn2.ttf", 16);
+        Font font(L"DejaVuSans.ttf", 16);
         Area area;
         showMessageWindow(&area, L"darkpattern.bmp", 
                 700, 100, &font, 255,255,255, 
diff -r -u einstein-2.0.orig/Makefile einstein-2.0/Makefile
--- einstein-2.0.orig/Makefile	2005-09-25 23:20:30.000000000 +0200
+++ einstein-2.0/Makefile	2016-03-05 18:14:22.365450608 +0100
@@ -49,10 +49,14 @@
 
 
 $(TARGET): $(OBJECTS)
+	cd mkres && make
+	cd res && ../mkres/mkres --source resources.descr --output ../einstein.res
 	$(CXX) $(LNFLAGS) $(OBJECTS) -o $(TARGET)
 
 clean:
 	rm -f $(OBJECTS) core* *core $(TARGET) *~
+	cd res && rm -f einstein.res
+	cd mkres && make clean
 
 depend:
 	@makedepend $(SOURCES) 2> /dev/null
diff -r -u einstein-2.0.orig/menu.cpp einstein-2.0/menu.cpp
--- einstein-2.0.orig/menu.cpp	2005-09-25 22:51:00.000000000 +0200
+++ einstein-2.0/menu.cpp	2016-03-05 18:29:27.960352230 +0100
@@ -23,11 +23,11 @@
     SDL_Surface *title = loadImage(L"nova.bmp");
     screen.draw(0, 0, title);
     SDL_FreeSurface(title);
-    Font font(L"nova.ttf", 28);
+    Font font(L"DejaVuSans.ttf", 28);
     std::wstring s(msg(L"einsteinFlowix"));
     int width = font.getWidth(s);
     font.draw((screen.getWidth() - width) / 2, 30, 255,255,255, true, s);
-    Font urlFont(L"luximb.ttf", 16);
+    Font urlFont(L"DejaVuSans.ttf", 16);
     s = L"http://games.flowix.com";
     width = urlFont.getWidth(s);
     urlFont.draw((screen.getWidth() - width) / 2, 60, 255,255,0, true, s);
@@ -133,9 +133,9 @@
 
         virtual void doAction() {
             Area area;
-            Font titleFont(L"nova.ttf", 26);
-            Font font(L"laudcn2.ttf", 14);
-            Font urlFont(L"luximb.ttf", 16);
+            Font titleFont(L"DejaVuSans.ttf", 26);
+            Font font(L"DejaVuSans.ttf", 14);
+            Font urlFont(L"DejaVuSans.ttf", 16);
 
 #define LABEL(pos, c, f, text) area.add(new Label(&f, 220, pos, 360, 20, \
             Label::ALIGN_CENTER, Label::ALIGN_MIDDLE, 255,255,c, text));
@@ -171,7 +171,7 @@
 void menu()
 {
     Area area;
-    Font font(L"laudcn2.ttf", 20);
+    Font font(L"DejaVuSans.ttf", 20);
 
     area.add(new MenuBackground());
     area.draw();
diff -r -u einstein-2.0.orig/mkres/compressor.cpp einstein-2.0/mkres/compressor.cpp
--- einstein-2.0.orig/mkres/compressor.cpp	2005-08-14 04:40:58.000000000 +0200
+++ einstein-2.0/mkres/compressor.cpp	2016-03-05 18:26:13.194264129 +0100
@@ -2,6 +2,7 @@
 #include <zlib.h>
 #include "convert.h"
 #include "exceptions.h"
+#include "string.h"
 
 
 ResourceCompressor::ResourceCompressor() 
diff -r -u einstein-2.0.orig/mkres/convert.h einstein-2.0/mkres/convert.h
--- einstein-2.0.orig/mkres/convert.h	2005-08-14 04:40:58.000000000 +0200
+++ einstein-2.0/mkres/convert.h	2016-03-05 18:25:21.479990669 +0100
@@ -5,6 +5,7 @@
 #include <iostream>
 #include <sstream>
 #include <string>
+#include <typeinfo>
 
 #include "exceptions.h"
 #include "unicode.h"
diff -r -u einstein-2.0.orig/mkres/main.cpp einstein-2.0/mkres/main.cpp
--- einstein-2.0.orig/mkres/main.cpp	2005-08-14 04:40:58.000000000 +0200
+++ einstein-2.0/mkres/main.cpp	2016-03-05 18:25:55.062765900 +0100
@@ -1,5 +1,6 @@
 #include "compressor.h"
 #include "exceptions.h"
+#include "string.h"
 #include "unicode.h"
 #include "table.h"
 
diff -r -u einstein-2.0.orig/mkres/unicode.cpp einstein-2.0/mkres/unicode.cpp
--- einstein-2.0.orig/mkres/unicode.cpp	2005-08-14 04:40:58.000000000 +0200
+++ einstein-2.0/mkres/unicode.cpp	2016-03-05 18:26:28.065492890 +0100
@@ -5,6 +5,7 @@
 #endif
 #include "unicode.h"
 #include "exceptions.h"
+#include "string.h"
 
 
 /// Returns length of wide character in utf-8
diff -r -u einstein-2.0.orig/opensave.cpp einstein-2.0/opensave.cpp
--- einstein-2.0.orig/opensave.cpp	2005-08-14 23:33:36.000000000 +0200
+++ einstein-2.0/opensave.cpp	2016-03-05 18:29:27.960352230 +0100
@@ -160,7 +160,7 @@
 static void showListWindow(SavesList &list, Command **commands,
         const std::wstring &title, Area &area, Font *font)
 {
-    Font titleFont(L"nova.ttf", 26);
+    Font titleFont(L"DejaVuSans.ttf", 26);
 
     area.add(new Window(250, 90, 300, 420, L"blue.bmp"));
     area.add(new Label(&titleFont, 250, 95, 300, 40, Label::ALIGN_CENTER,
@@ -189,7 +189,7 @@
     
     Area area;
     area.add(parentArea, false);
-    Font font(L"laudcn2.ttf", 14);
+    Font font(L"DejaVuSans.ttf", 14);
     bool saved = false;
     
     SavesList list;
@@ -258,7 +258,7 @@
     
     Area area;
     area.add(parentArea, false);
-    Font font(L"laudcn2.ttf", 14);
+    Font font(L"DejaVuSans.ttf", 14);
     
     Game *newGame = NULL;
     
diff -r -u einstein-2.0.orig/options.cpp einstein-2.0/options.cpp
--- einstein-2.0.orig/options.cpp	2005-09-26 12:33:18.000000000 +0200
+++ einstein-2.0/options.cpp	2016-03-05 18:29:27.960352230 +0100
@@ -53,8 +53,8 @@
 
 void showOptionsWindow(Area *parentArea)
 {
-    Font titleFont(L"nova.ttf", 26);
-    Font font(L"laudcn2.ttf", 14);
+    Font titleFont(L"DejaVuSans.ttf", 26);
+    Font font(L"DejaVuSans.ttf", 14);
 
     bool fullscreen = (getStorage()->get(L"fullscreen", 1) != 0);
     bool niceCursor = (getStorage()->get(L"niceCursor", 1) != 0);
diff -r -u einstein-2.0.orig/res/resources.descr einstein-2.0/res/resources.descr
--- einstein-2.0.orig/res/resources.descr	2005-09-25 22:51:14.000000000 +0200
+++ einstein-2.0/res/resources.descr	2016-03-05 18:30:08.563704873 +0100
@@ -89,13 +89,11 @@
     { name = "title.bmp" }
     { name = "marble1.bmp" }
     { name = "blue.bmp" }
-    { name = "luximb.ttf" }
     { name = "redpattern.bmp" }
     { name = "greenpattern.bmp" }
     { name = "darkpattern.bmp" }
     { name = "nova.bmp" }
-    { name = "nova.ttf" }
-    { name = "laudcn2.ttf" }
+    { name = "DejaVuSans.ttf" }
     { name = "btn.bmp" }
     { name = "rules.txt", format = "messages" group = "messages" }
     { name = "rules_ru.txt", format = "messages" group = "messages" }
Only in einstein-2.0/res: resources.descr.orig
diff -r -u einstein-2.0.orig/sound.h einstein-2.0/sound.h
--- einstein-2.0.orig/sound.h	2005-09-24 08:24:20.000000000 +0200
+++ einstein-2.0/sound.h	2016-03-05 18:22:19.314931225 +0100
@@ -4,7 +4,7 @@
 
 #include <string>
 #include <map>
-#include <SDL_mixer.h>
+#include <SDL/SDL_mixer.h>
 
 
 class Sound
diff -r -u einstein-2.0.orig/topscores.cpp einstein-2.0/topscores.cpp
--- einstein-2.0.orig/topscores.cpp	2005-08-14 23:08:43.000000000 +0200
+++ einstein-2.0/topscores.cpp	2016-03-05 18:29:27.970353055 +0100
@@ -103,9 +103,9 @@
 ScoresWindow::ScoresWindow(int x, int y, TopScores *scores, int highlight): 
                 Window(x, y, 320, 350, L"blue.bmp")
 {
-    Font titleFont(L"nova.ttf", 26);
-    Font entryFont(L"laudcn2.ttf", 14);
-    Font timeFont(L"luximb.ttf", 14);
+    Font titleFont(L"DejaVuSans.ttf", 26);
+    Font entryFont(L"DejaVuSans.ttf", 14);
+    Font timeFont(L"DejaVuSans.ttf", 14);
     
     std::wstring txt = msg(L"topScores");
     int w = titleFont.getWidth(txt);
@@ -139,7 +139,7 @@
 {
     Area area;
 
-    Font font(L"laudcn2.ttf", 16);
+    Font font(L"DejaVuSans.ttf", 16);
     area.add(parentArea);
     area.add(new ScoresWindow(240, 125, scores, highlight));
     ExitCommand exitCmd(area);
@@ -154,7 +154,7 @@
 {
     Area area;
     
-    Font font(L"laudcn2.ttf", 16);
+    Font font(L"DejaVuSans.ttf", 16);
     area.add(parentArea);
     area.add(new Window(170, 280, 460, 100, L"blue.bmp"));
     Storage *storage = getStorage();
diff -r -u einstein-2.0.orig/unicode.cpp einstein-2.0/unicode.cpp
--- einstein-2.0.orig/unicode.cpp	2005-08-14 04:40:58.000000000 +0200
+++ einstein-2.0/unicode.cpp	2016-03-05 18:26:55.747780024 +0100
@@ -5,6 +5,7 @@
 #endif
 #include "unicode.h"
 #include "exceptions.h"
+#include "string.h"
 
 
 /// Returns length of wide character in utf-8