Workaround 3

Makefile

@@ -1,7 +1,8 @@
-CC = gcc -m32 -pthread
-CFLAGS = -g -fPIC -m32 -Wall -Werror -Wno-misleading-indentation -Wno-unused-but-set-variable -Wno-unused-variable -Wno-unused-function -D_GNU_SOURCE -Wno-char-subscripts
-LD = g++ -m32
-LDFLAGS = -Wl,-z,defs -rdynamic -static-libgcc -lc -ldl -lGL -lglut -lX11 -lSDL2 -lm -lpthread -shared -nostdlib -lasound -L./src/libxdiff -lxdiff
+CC ?= gcc
+CFLAGS = -g -fPIC -m32 -pthread -Wall -Werror -Wno-misleading-indentation -Wno-unused-but-set-variable -Wno-unused-variable -Wno-unused-function -D_GNU_SOURCE -Wno-char-subscripts
+CXX ?= g++
+LD = $(CXX) 
+LDFLAGS = -m32 -Wl,-z,defs -rdynamic -static-libgcc -lc -ldl -lGL -lglut -lX11 -lXcursor -lSDL2 -lm -lpthread -shared -nostdlib -lasound -L./src/libxdiff -lxdiff
 
 BUILD = build
 
@@ -17,14 +18,14 @@ all: lindbergh libxdiff.a lindbergh.so libsegaapi.so libkswapapi.so libposixtime
 
 lindbergh: src/lindbergh/lindbergh.c src/lindbergh/log.c src/lindbergh/log.h src/lindbergh/jvs.c src/lindbergh/jvs.h src/lindbergh/config.h src/lindbergh/config.c src/lindbergh/evdevinput.h src/lindbergh/evdevinput.c
 	mkdir -p $(BUILD)
-	$(CC) src/lindbergh/lindbergh.c src/lindbergh/log.h src/lindbergh/log.c src/lindbergh/jvs.h src/lindbergh/jvs.c src/lindbergh/config.h src/lindbergh/config.c src/lindbergh/evdevinput.c src/lindbergh/evdevinput.h -o $(BUILD)/lindbergh -lm
+	$(CC) -m32 src/lindbergh/lindbergh.c src/lindbergh/log.h src/lindbergh/log.c src/lindbergh/jvs.h src/lindbergh/jvs.c src/lindbergh/config.h src/lindbergh/config.c src/lindbergh/evdevinput.c src/lindbergh/evdevinput.h -o $(BUILD)/lindbergh -lm
 
 libxdiff.a: $(XDIFF_OBJS)
 	mkdir -p $(BUILD)
 	ar rcs src/libxdiff/libxdiff.a $(XDIFF_OBJS)
 
 src/libxdiff/xdiff/%.o: src/libxdiff/xdiff/%.c
-	$(CC) -DHAVE_CONFIG_H -fPIC -c $< -o $@
+	$(CC) -m32 -DHAVE_CONFIG_H -fPIC -c $< -o $@
 
 lindbergh.so: $(OBJS)
 	mkdir -p $(BUILD)
@@ -34,13 +35,13 @@ lindbergh.so: $(OBJS)
 	$(CC) $(CFLAGS) -c $< -o $@
 
 libsegaapi.so: src/libsegaapi/libsegaapi.o
-	gcc -m32 -O0 -g src/libsegaapi/libsegaapi.c -lFAudio -fPIC -shared -o $(BUILD)/libsegaapi.so
+	$(CC) -m32 -O0 -g src/libsegaapi/libsegaapi.c -lFAudio -fPIC -shared -o $(BUILD)/libsegaapi.so
 
 libkswapapi.so: src/libkswapapi/libkswapapi.o
-	$(CC) src/libkswapapi/libkswapapi.o -fPIC -shared -o $(BUILD)/libkswapapi.so
+	$(CC) -m32 src/libkswapapi/libkswapapi.o -fPIC -shared -o $(BUILD)/libkswapapi.so
 
 libposixtime.so:
-	$(CC) src/libposixtime/libposixtime.c src/libposixtime/libposixtime.h -m32 -shared -o $(BUILD)/libposixtime.so
+	$(CC) -m32 src/libposixtime/libposixtime.c src/libposixtime/libposixtime.h -m32 -shared -o $(BUILD)/libposixtime.so
 	ln -s -f libposixtime.so $(BUILD)/libposixtime.so.1
 	ln -s -f libposixtime.so $(BUILD)/libposixtime.so.2.4
 

src/lindbergh/lindbergh.c

@@ -11,6 +11,7 @@
 #define LD_LIBRARY_PATH "LD_LIBRARY_PATH"
 #define LD_PRELOAD "LD_PRELOAD"
 #define PRELOAD_FILE_NAME "lindbergh.so"
+#define PRELOAD_FILE_FLATPAK "/app/lib32/lindbergh.so"
 #define TEAM "bobbydilley, retrofan, dkeruza-neo, doozer, francesco, rolel, caviar-x"
 #define LINDBERGH_CONFIG_PATH "LINDBERGH_CONFIG_PATH"
 
@@ -232,7 +233,7 @@ void testModePath(char *name)
  * Makes sure the environment variables are set correctly
  * to run the game.
  */
-void setEnvironmentVariables()
+void setEnvironmentVariables(int isFlatpak)
 {
     // Ensure the library path is set correctly
     char libraryPath[128] = {0};
@@ -249,7 +250,10 @@ void setEnvironmentVariables()
     setenv(LD_LIBRARY_PATH, libraryPath, 1);
 
     // Ensure the preload path is set correctly
-    setenv(LD_PRELOAD, PRELOAD_FILE_NAME, 1);
+    if (!isFlatpak)
+        setenv(LD_PRELOAD, PRELOAD_FILE_NAME, 1);
+    else
+        setenv(LD_PRELOAD, PRELOAD_FILE_FLATPAK, 1);
 }
 
 /**
@@ -316,9 +320,6 @@ void printVersion() {
  */
 int main(int argc, char *argv[])
 {
-    // Ensure environment variables are set correctly
-    setEnvironmentVariables();
-
     // Check for --version before directory operations
     if (argc > 1 && strcmp(argv[1], "--version") == 0) {
         printVersion();
@@ -338,6 +339,7 @@ int main(int argc, char *argv[])
     char *game = NULL;
 
     int lindberghSharedObjectFound = 0;
+    int isFlatpak = 0;
 
     while ((ent = readdir(dir)) != NULL)
     {
@@ -385,10 +387,22 @@ int main(int argc, char *argv[])
 
     if (!lindberghSharedObjectFound)
     {
-        log_error("The preload object lindbergh.so was not found in this directory.");
-        return EXIT_FAILURE;
+        FILE *file = fopen(PRELOAD_FILE_FLATPAK, "r");
+        if (file)
+        {
+            fclose(file);
+            isFlatpak = 1;
+        }
+        else
+        {
+            log_error("The preload object lindbergh.so was not found in this directory.");
+            return EXIT_FAILURE;
+        }
     }
 
+    // Ensure environment variables are set correctly
+    setEnvironmentVariables(isFlatpak);
+
     // Build up the command to start the game
 
     int testMode = 0;

src/lindbergh/shader_patches.c

@@ -1432,16 +1432,30 @@ int parseCgcArgs(const char *input, const char ***compilerArgs, const char **out
 
 void loadLibCg()
 {
+    int isFlatpak = 0;
     void *handle = dlopen("./libCg.so", RTLD_NOW);
     if (!handle)
     {
-        fprintf(stderr, "Error: Unable to load library libCg.so %s\n", dlerror());
-        fprintf(stderr, "Error: libCg.so version 2.0 is needed to compile the shaders in the game's folder.\n");
-        exit(1);
+        handle = dlopen("/app/lib32/libCg2.so", RTLD_NOW);
+        if (!handle)
+        {
+            fprintf(stderr, "Error: Unable to load library libCg.so %s\n", dlerror());
+            fprintf(stderr, "Error: libCg.so version 2.0 is needed to compile the shaders in the game's folder.\n");
+            exit(1);
+        }
+        else
+        {
+            isFlatpak = 1;
+        }
     }
 
     char libCgVersion[9];
-    FILE *libF = fopen("./libCg.so", "r");
+    FILE *libF;
+    if (isFlatpak)
+        libF = fopen("/app/lib32/libCg2.so", "r");
+    else
+        libF = fopen("./libCg.so", "r");
+
     fseek(libF, 0x226d84, SEEK_SET);
     fread(libCgVersion, 9, 1, libF);
     fclose(libF);

src/lindbergh/stb_image.h

@@ -702,14 +702,14 @@ static int stbi__sse2_available()
 
 static int stbi__sse2_available()
 {
-#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 408 // GCC 4.8 or later
+//#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 408 // GCC 4.8 or later
    // GCC 4.8+ has a nice way to do this
-   return __builtin_cpu_supports("sse2");
-#else
+   //return __builtin_cpu_supports("sse2");
+//#else
    // portable way to do this, preferably without using GCC inline ASM?
    // just bail for now.
    return 0;
-#endif
+//#endif
 }
 #endif
 #endif