Introduce ethr_sint_t and use it for atomics

The atomic memory operations interface used the 'long' type and assumed that
it was of the same size as 'void *'. This is true on most platforms, however,
not on Windows 64.

1 files changed, 4 insertions, 0 deletions

diff --git a/erts/include/internal/ppc32/atomic.h b/erts/include/internal/ppc32/atomic.h
index f21f7c9588..daa0de88ab 100644
--- a/erts/include/internal/ppc32/atomic.h
+++ b/erts/include/internal/ppc32/atomic.h
@@ -28,6 +28,10 @@
 #ifndef ETHREAD_PPC_ATOMIC_H
 #define ETHREAD_PPC_ATOMIC_H
 
+#if ETHR_SIZEOF_LONG != ETHR_SIZEOF_PTR
+#  error "Incompatible size of 'int'"
+#endif
+
 typedef struct {
     volatile int counter;
 } ethr_native_atomic_t;