diff --git a/lang/cem/libcc/stdio/fprintf.c b/lang/cem/libcc/stdio/fprintf.c
index ff580501f..2c790d853 100644
--- a/lang/cem/libcc/stdio/fprintf.c
+++ b/lang/cem/libcc/stdio/fprintf.c
@@ -3,17 +3,18 @@
 #include <varargs.h>
 
 fprintf(va_alist)
-va_dcl
+	va_dcl
 {
-	FILE *file;
-	char *fmt;
 	va_list ap;
 
 	va_start(ap);
-	file = va_arg(ap, FILE *);
-	fmt = va_arg(ap, char *);
-	_doprnt (fmt, ap, file);
-	if ( io_testflag(file,IO_PERPRINTF) )
-        	fflush(file);
+	{
+		FILE *file = va_arg(ap, FILE *);
+		char *fmt = va_arg(ap, char *);
+
+		_doprnt (fmt, ap, file);
+		if ( io_testflag(file,IO_PERPRINTF) )
+        		fflush(file);
+	}
 	va_end(ap);
 }
diff --git a/lang/cem/libcc/stdio/fscanf.c b/lang/cem/libcc/stdio/fscanf.c
index 9813c901d..771e4c712 100644
--- a/lang/cem/libcc/stdio/fscanf.c
+++ b/lang/cem/libcc/stdio/fscanf.c
@@ -3,18 +3,20 @@
 #include <varargs.h>
 
 int fscanf(va_alist)
-va_dcl
+	va_dcl
 {
-	FILE *fp;
-	char *format;
 	va_list ap;
 	int retval;
 
 	va_start(ap);
-	fp = va_arg(ap, FILE *);
-	format = va_arg(ap, char *);
-	retval = _doscanf (fp, format, ap);
+	{
+		FILE *fp = va_arg(ap, FILE *);
+		char *format = va_arg(ap, char *);
+
+		retval = _doscanf (fp, format, ap);
+	}
 	va_end(ap);
+
 	return retval;
 }
 
diff --git a/lang/cem/libcc/stdio/printf.c b/lang/cem/libcc/stdio/printf.c
index b13de5fb6..38577e87e 100644
--- a/lang/cem/libcc/stdio/printf.c
+++ b/lang/cem/libcc/stdio/printf.c
@@ -3,15 +3,17 @@
 #include <varargs.h>
 
 printf(va_alist)
-va_dcl
+	va_dcl
 {
-	char *fmt;
 	va_list ap;
 
 	va_start(ap);
-	fmt = va_arg(ap, char *);
-	_doprnt (fmt, ap, stdout);
-	if ( io_testflag(stdout,IO_PERPRINTF) )
-        	fflush(stdout);
+	{
+		char *fmt = va_arg(ap, char *);
+
+		_doprnt (fmt, ap, stdout);
+		if ( io_testflag(stdout,IO_PERPRINTF) )
+        		fflush(stdout);
+	}
 	va_end(ap);
 }
diff --git a/lang/cem/libcc/stdio/scanf.c b/lang/cem/libcc/stdio/scanf.c
index 88aedbea1..fd04fa332 100644
--- a/lang/cem/libcc/stdio/scanf.c
+++ b/lang/cem/libcc/stdio/scanf.c
@@ -3,16 +3,19 @@
 #include <varargs.h>
 
 int scanf(va_alist)
-va_dcl
+	va_dcl
 {
-	char *format;
 	va_list ap;
 	int retval;
 
 	va_start(ap);
-	format = va_arg(ap, char *);
-	retval = _doscanf (stdin, format, ap);
+	{
+		char *format = va_arg(ap, char *);
+
+		retval = _doscanf (stdin, format, ap);
+	}
 	va_end(ap);
+
 	return retval;
 }
 
diff --git a/lang/cem/libcc/stdio/sprintf.c b/lang/cem/libcc/stdio/sprintf.c
index 53ed3c4dd..df5a34ffd 100644
--- a/lang/cem/libcc/stdio/sprintf.c
+++ b/lang/cem/libcc/stdio/sprintf.c
@@ -3,24 +3,28 @@
 #include <varargs.h>
 
 char *sprintf(va_alist)
-va_dcl
+	va_dcl
 {
-	char *buf, *format;
-	FILE _tempfile;
 	va_list ap;
+	char *retval;
 
 	va_start(ap);
-	buf = va_arg(ap, char *);
-	format = va_arg(ap, char *);
-	_tempfile._fd     = -1;
-	_tempfile._flags  = IO_WRITEMODE + IO_UNBUFF;
-	_tempfile._buf    = (unsigned char *) buf;
-	_tempfile._ptr    = (unsigned char *) buf;
-	_tempfile._count  = 32767;
+	{
+		char *buf = va_arg(ap, char *);
+		char *format = va_arg(ap, char *);
+		FILE _tempfile;
 
-	_doprnt(format, ap, &_tempfile);
-	putc('\0',&_tempfile);
+		retval = buf;
+		_tempfile._fd     = -1;
+		_tempfile._flags  = IO_WRITEMODE + IO_UNBUFF;
+		_tempfile._buf    = (unsigned char *) buf;
+		_tempfile._ptr    = (unsigned char *) buf;
+		_tempfile._count  = 32767;
 
+		_doprnt(format, ap, &_tempfile);
+		putc('\0',&_tempfile);
+	}
 	va_end(ap);
-	return buf;
+
+	return retval;
 }
diff --git a/lang/cem/libcc/stdio/sscanf.c b/lang/cem/libcc/stdio/sscanf.c
index 7dff0f61f..c0175e50e 100644
--- a/lang/cem/libcc/stdio/sscanf.c
+++ b/lang/cem/libcc/stdio/sscanf.c
@@ -3,24 +3,26 @@
 #include <varargs.h>
 
 int sscanf(va_alist)
-va_dcl
+	va_dcl
 {
-	char *string;		/* source of data */
-	char *format;		/* control string */
-	FILE _tempfile;
 	va_list ap;
 	int retval;
 
 	va_start(ap);
-	string = va_arg(ap, char *);
-	format = va_arg(ap, char *);
-	_tempfile._fd     = -1;
-	_tempfile._flags  = IO_READMODE + IO_UNBUFF;
-	_tempfile._buf    = (unsigned char *) string;
-	_tempfile._ptr    = (unsigned char *) string;
-	_tempfile._count  = 32767;
+	{
+		char *string = va_arg(ap, char *);
+		char *format = va_arg(ap, char *);
+		FILE _tempfile;
 
-	retval = _doscanf (&_tempfile, format, ap);
+		_tempfile._fd     = -1;
+		_tempfile._flags  = IO_READMODE + IO_UNBUFF;
+		_tempfile._buf    = (unsigned char *) string;
+		_tempfile._ptr    = (unsigned char *) string;
+		_tempfile._count  = 32767;
+
+		retval = _doscanf (&_tempfile, format, ap);
+	}
 	va_end(ap);
+
 	return retval;
 }