Fix up some issues with dynamic loading.

Makefile

@@ -47,7 +47,7 @@ ifeq ($(HAVE_DL), 1)
    LIBS += -ldl
 endif
 
-CFLAGS = -Wall -O3 -std=gnu99 -I.
+CFLAGS = -Wall -O3 -g -std=gnu99 -I.
 
 all: $(TARGET) config.mk
 

dynamic.c

@@ -61,6 +61,7 @@ void (*psnes_term)(void);
 #ifdef HAVE_DL
 static void load_dynamic(void)
 {
+   SSNES_LOG("Loading dynamic libsnes from: \"%s\"\n", g_settings.libsnes);
    lib_handle = dlopen(g_settings.libsnes, RTLD_LAZY);
    if (!lib_handle)
    {

general.h

@@ -80,6 +80,7 @@ struct global
    FILE *rom_file;
    char savefile_name_srm[256];
    char config_path[256];
+   char basename[256];
 };
 
 void parse_config(void);

ssnes.c

@@ -259,12 +259,8 @@ static void parse_input(int argc, char *argv[])
       strcpy(tmp, argv[optind]);
       char *dst = strrchr(tmp, '.');
       if (dst)
-      {
          *dst = '\0';
-         psnes_set_cartridge_basename(tmp);
+      strncpy(g_extern.basename, tmp, sizeof(g_extern.basename) - 1);
-      }
-      else
-         psnes_set_cartridge_basename(tmp);
 
       SSNES_LOG("Opening file: \"%s\"\n", argv[optind]);
       g_extern.rom_file = fopen(argv[optind], "rb");
@@ -288,10 +284,12 @@ int main(int argc, char *argv[])
 {
    parse_input(argc, argv);
    parse_config();
-
    init_dlsym();
 
    psnes_init();
+   if (strlen(g_extern.basename) > 0)
+      psnes_set_cartridge_basename(g_extern.basename);
+
    SSNES_LOG("Version of libsnes API: %u.%u\n", psnes_library_revision_major(), psnes_library_revision_minor());
    void *rom_buf;
    ssize_t rom_len = 0;

ssnes.cfg

@@ -1,5 +1,8 @@
 ##### Config file for SSNES
 
+## If enabled, load libsnes from a dynamic location.
+# libsnes_path = "/path/to/libsnes.so"
+
 #### Video
 
 # Windowed xscale and yscale (Real x res: 296 * xscale, real y scale: 224 * xscale)