diff -Nur qt-x11-free-3.3.4.orig/src/tools/qlocale.cpp qt-x11-free-3.3.4/src/tools/qlocale.cpp
--- qt-x11-free-3.3.4.orig/src/tools/qlocale.cpp	2005-01-21 18:16:05.000000000 +0100
+++ qt-x11-free-3.3.4/src/tools/qlocale.cpp	2005-08-20 16:05:53.000000000 +0200
@@ -72,6 +72,12 @@
 #   define NAN DBL_QNAN
 #endif
 
+#if (defined(Q_CC_GNU) && defined(Q_OS_WIN)) || __GNUC__ == 4 || defined(QT_QLOCALE_NEEDS_VOLATILE)
+#   define NEEDS_VOLATILE volatile
+#else
+#   define NEEDS_VOLATILE
+#endif
+
 enum {
     LittleEndian,
     BigEndian
@@ -4068,9 +4074,9 @@
 #error Exactly one of IEEE_BIG_OR_LITTLE_ENDIAN, VAX, or IBM should be defined.
 #endif
 
-inline ULong getWord0(double x)
+inline ULong getWord0(const NEEDS_VOLATILE double x)
 {
-    uchar *ptr = (uchar *)&x;
+    const NEEDS_VOLATILE uchar *ptr = reinterpret_cast<const NEEDS_VOLATILE uchar *>(&x);
     if (ByteOrder == BigEndian) {
         return (ptr[0]<<24) + (ptr[1]<<16) + (ptr[2]<<8) + ptr[3];
     } else {
@@ -4078,9 +4084,9 @@
     }
 }
 
-inline void setWord0(double *x, ULong l)
+inline void setWord0(NEEDS_VOLATILE double *x, ULong l)
 {
-    uchar *ptr = (uchar *)x;
+    NEEDS_VOLATILE uchar *ptr = reinterpret_cast<NEEDS_VOLATILE uchar *>(x);
     if (ByteOrder == BigEndian) {
         ptr[0] = (uchar)(l>>24);
         ptr[1] = (uchar)(l>>16);
@@ -4094,18 +4100,18 @@
     }
 }
 
-inline ULong getWord1(double x)
+inline ULong getWord1(const NEEDS_VOLATILE double x)
 {
-    uchar *ptr = (uchar *)&x;
+    const NEEDS_VOLATILE uchar *ptr = reinterpret_cast<const NEEDS_VOLATILE uchar *>(&x);
     if (ByteOrder == BigEndian) {
         return (ptr[4]<<24) + (ptr[5]<<16) + (ptr[6]<<8) + ptr[7];
     } else {
         return (ptr[3]<<24) + (ptr[2]<<16) + (ptr[1]<<8) + ptr[0];
     }
 }
-inline void setWord1(double *x, ULong l)
+inline void setWord1(NEEDS_VOLATILE double *x, ULong l)
 {
-    uchar *ptr = (uchar *)x;
+    NEEDS_VOLATILE uchar *ptr = reinterpret_cast<uchar NEEDS_VOLATILE *>(x);
     if (ByteOrder == BigEndian) {
         ptr[4] = (uchar)(l>>24);
         ptr[5] = (uchar)(l>>16);
@@ -5679,11 +5685,11 @@
 #ifdef Q_OS_LINUX
     fesetenv(&envp);
 #endif
-    
+
     return s;
 }
 
-static char *_qdtoa( double d, int mode, int ndigits, int *decpt, int *sign, char **rve, char **resultp)
+static char *_qdtoa( NEEDS_VOLATILE double d, int mode, int ndigits, int *decpt, int *sign, char **rve, char **resultp)
 {
     /*
       Arguments ndigits, decpt, sign are similar to those