diff --git a/PC/os2emx/dlfcn.c b/PC/os2emx/dlfcn.c
index 9e88d5e..47c046c 100644
--- a/PC/os2emx/dlfcn.c
+++ b/PC/os2emx/dlfcn.c
@@ -46,178 +46,178 @@
 #include <malloc.h>
 
 typedef struct _track_rec {
-	char *name;
-	HMODULE handle;
-	void *id;
-	struct _track_rec *next;
+    char *name;
+    HMODULE handle;
+    void *id;
+    struct _track_rec *next;
 } tDLLchain, *DLLchain;
 
-static DLLchain dlload = NULL;	/* A simple chained list of DLL names */
-static char dlerr [256];	/* last error text string */
+static DLLchain dlload = NULL;  /* A simple chained list of DLL names */
+static char dlerr [256];        /* last error text string */
 static void *last_id;
 
 static DLLchain find_id(void *id)
 {
-	DLLchain tmp;
+    DLLchain tmp;
 
-	for (tmp = dlload; tmp; tmp = tmp->next)
-		if (id == tmp->id)
-			return tmp;
+    for (tmp = dlload; tmp; tmp = tmp->next)
+        if (id == tmp->id)
+            return tmp;
 
-	return NULL;
+    return NULL;
 }
 
 /* load a dynamic-link library and return handle */
 void *dlopen(char *filename, int flags)
 {
-	HMODULE hm;
-	DLLchain tmp;
-	char err[256];
-	char *errtxt;
-	int rc = 0, set_chain = 0;
+    HMODULE hm;
+    DLLchain tmp;
+    char err[256];
+    char *errtxt;
+    int rc = 0, set_chain = 0;
 
-	for (tmp = dlload; tmp; tmp = tmp->next)
-		if (strnicmp(tmp->name, filename, 999) == 0)
-			break;
+    for (tmp = dlload; tmp; tmp = tmp->next)
+        if (strnicmp(tmp->name, filename, 999) == 0)
+            break;
 
-	if (!tmp)
-	{
-		tmp = (DLLchain) malloc(sizeof(tDLLchain));
-		if (!tmp)
-			goto nomem;
-		tmp->name = strdup(filename);
-		tmp->next = dlload;
-		set_chain = 1;
-	}
+    if (!tmp)
+    {
+        tmp = (DLLchain) malloc(sizeof(tDLLchain));
+        if (!tmp)
+            goto nomem;
+        tmp->name = strdup(filename);
+        tmp->next = dlload;
+        set_chain = 1;
+    }
 
-	switch (rc = DosLoadModule((PSZ)&err, sizeof(err), filename, &hm))
-	{
-		case NO_ERROR:
-			tmp->handle = hm;
-			if (set_chain)
-			{
-				do
-					last_id++;
-				while ((last_id == 0) || (find_id(last_id)));
-				tmp->id = last_id;
-				dlload = tmp;
-			}
-			return tmp->id;
-		case ERROR_FILE_NOT_FOUND:
-		case ERROR_PATH_NOT_FOUND:
-			errtxt = "module `%s' not found";
-			break;
-		case ERROR_TOO_MANY_OPEN_FILES:
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_SHARING_BUFFER_EXCEEDED:
+    switch (rc = DosLoadModule((PSZ)&err, sizeof(err), filename, &hm))
+    {
+        case NO_ERROR:
+            tmp->handle = hm;
+            if (set_chain)
+            {
+                do
+                    last_id++;
+                while ((last_id == 0) || (find_id(last_id)));
+                tmp->id = last_id;
+                dlload = tmp;
+            }
+            return tmp->id;
+        case ERROR_FILE_NOT_FOUND:
+        case ERROR_PATH_NOT_FOUND:
+            errtxt = "module `%s' not found";
+            break;
+        case ERROR_TOO_MANY_OPEN_FILES:
+        case ERROR_NOT_ENOUGH_MEMORY:
+        case ERROR_SHARING_BUFFER_EXCEEDED:
 nomem:
-			errtxt = "out of system resources";
-			break;
-		case ERROR_ACCESS_DENIED:
-			errtxt = "access denied";
-			break;
-		case ERROR_BAD_FORMAT:
-		case ERROR_INVALID_SEGMENT_NUMBER:
-		case ERROR_INVALID_ORDINAL:
-		case ERROR_INVALID_MODULETYPE:
-		case ERROR_INVALID_EXE_SIGNATURE:
-		case ERROR_EXE_MARKED_INVALID:
-		case ERROR_ITERATED_DATA_EXCEEDS_64K:
-		case ERROR_INVALID_MINALLOCSIZE:
-		case ERROR_INVALID_SEGDPL:
-		case ERROR_AUTODATASEG_EXCEEDS_64K:
-		case ERROR_RELOCSRC_CHAIN_EXCEEDS_SEGLIMIT:
-			errtxt = "invalid module format";
-			break;
-		case ERROR_INVALID_NAME:
-			errtxt = "filename doesn't match module name";
-			break;
-		case ERROR_SHARING_VIOLATION:
-		case ERROR_LOCK_VIOLATION:
-			errtxt = "sharing violation";
-			break;
-		case ERROR_INIT_ROUTINE_FAILED:
-			errtxt = "module initialization failed";
-			break;
-		default:
-			errtxt = "cause `%s', error code = %d";
-			break;
-	}
-	snprintf(dlerr, sizeof(dlerr), errtxt, &err, rc);
-	if (tmp)
-	{
-		if (tmp->name)
-			free(tmp->name);
-		free(tmp);
-	}
-	return 0;
+            errtxt = "out of system resources";
+            break;
+        case ERROR_ACCESS_DENIED:
+            errtxt = "access denied";
+            break;
+        case ERROR_BAD_FORMAT:
+        case ERROR_INVALID_SEGMENT_NUMBER:
+        case ERROR_INVALID_ORDINAL:
+        case ERROR_INVALID_MODULETYPE:
+        case ERROR_INVALID_EXE_SIGNATURE:
+        case ERROR_EXE_MARKED_INVALID:
+        case ERROR_ITERATED_DATA_EXCEEDS_64K:
+        case ERROR_INVALID_MINALLOCSIZE:
+        case ERROR_INVALID_SEGDPL:
+        case ERROR_AUTODATASEG_EXCEEDS_64K:
+        case ERROR_RELOCSRC_CHAIN_EXCEEDS_SEGLIMIT:
+            errtxt = "invalid module format";
+            break;
+        case ERROR_INVALID_NAME:
+            errtxt = "filename doesn't match module name";
+            break;
+        case ERROR_SHARING_VIOLATION:
+        case ERROR_LOCK_VIOLATION:
+            errtxt = "sharing violation";
+            break;
+        case ERROR_INIT_ROUTINE_FAILED:
+            errtxt = "module initialization failed";
+            break;
+        default:
+            errtxt = "cause `%s', error code = %d";
+            break;
+    }
+    snprintf(dlerr, sizeof(dlerr), errtxt, &err, rc);
+    if (tmp)
+    {
+        if (tmp->name)
+            free(tmp->name);
+        free(tmp);
+    }
+    return 0;
 }
 
 /* return a pointer to the `symbol' in DLL */
 void *dlsym(void *handle, char *symbol)
 {
-	int rc = 0;
-	PFN addr;
-	char *errtxt;
-	int symord = 0;
-	DLLchain tmp = find_id(handle);
+    int rc = 0;
+    PFN addr;
+    char *errtxt;
+    int symord = 0;
+    DLLchain tmp = find_id(handle);
 
-	if (!tmp)
-		goto inv_handle;
+    if (!tmp)
+        goto inv_handle;
 
-	if (*symbol == '#')
-		symord = atoi(symbol + 1);
+    if (*symbol == '#')
+        symord = atoi(symbol + 1);
 
-	switch (rc = DosQueryProcAddr(tmp->handle, symord, symbol, &addr))
-	{
-		case NO_ERROR:
-			return (void *)addr;
-		case ERROR_INVALID_HANDLE:
+    switch (rc = DosQueryProcAddr(tmp->handle, symord, symbol, &addr))
+    {
+        case NO_ERROR:
+            return (void *)addr;
+        case ERROR_INVALID_HANDLE:
 inv_handle:
-			errtxt = "invalid module handle";
-			break;
-		case ERROR_PROC_NOT_FOUND:
-		case ERROR_INVALID_NAME:
-			errtxt = "no symbol `%s' in module";
-			break;
-		default:
-			errtxt = "symbol `%s', error code = %d";
-			break;
-	}
-	snprintf(dlerr, sizeof(dlerr), errtxt, symbol, rc);
-	return NULL;
+            errtxt = "invalid module handle";
+            break;
+        case ERROR_PROC_NOT_FOUND:
+        case ERROR_INVALID_NAME:
+            errtxt = "no symbol `%s' in module";
+            break;
+        default:
+            errtxt = "symbol `%s', error code = %d";
+            break;
+    }
+    snprintf(dlerr, sizeof(dlerr), errtxt, symbol, rc);
+    return NULL;
 }
 
 /* free dynamicaly-linked library */
 int dlclose(void *handle)
 {
-	int rc;
-	DLLchain tmp = find_id(handle);
+    int rc;
+    DLLchain tmp = find_id(handle);
 
-	if (!tmp)
-		goto inv_handle;
+    if (!tmp)
+        goto inv_handle;
 
-	switch (rc = DosFreeModule(tmp->handle))
-	{
-		case NO_ERROR:
-			free(tmp->name);
-			dlload = tmp->next;
-			free(tmp);
-			return 0;
-		case ERROR_INVALID_HANDLE:
+    switch (rc = DosFreeModule(tmp->handle))
+    {
+        case NO_ERROR:
+            free(tmp->name);
+            dlload = tmp->next;
+            free(tmp);
+            return 0;
+        case ERROR_INVALID_HANDLE:
 inv_handle:
-			strcpy(dlerr, "invalid module handle");
-			return -1;
-		case ERROR_INVALID_ACCESS:
-			strcpy(dlerr, "access denied");
-			return -1;
-		default:
-			return -1;
-	}
+            strcpy(dlerr, "invalid module handle");
+            return -1;
+        case ERROR_INVALID_ACCESS:
+            strcpy(dlerr, "access denied");
+            return -1;
+        default:
+            return -1;
+    }
 }
 
 /* return a string describing last occurred dl error */
 char *dlerror()
 {
-	return dlerr;
+    return dlerr;
 }