Use intptr_t for z_ssize_t on MSVC.
diff --git a/zconf.h b/zconf.h
index aee94b0..f6481d1 100644
--- a/zconf.h
+++ b/zconf.h
@@ -240,8 +240,13 @@
# ifdef NO_SSIZE_T
typedef NO_SSIZE_T z_ssize_t;
# else
+# include <stddef.h>
# include <sys/types.h>
- typedef ssize_t z_ssize_t;
+# ifdef _MSC_VER
+ typedef intptr_t z_ssize_t;
+# else
+ typedef ssize_t z_ssize_t;
+# endif
# endif
# undef z_longlong
#endif
diff --git a/zconf.h.cmakein b/zconf.h.cmakein
index fe97071..843aeb4 100644
--- a/zconf.h.cmakein
+++ b/zconf.h.cmakein
@@ -242,8 +242,13 @@
# ifdef NO_SSIZE_T
typedef NO_SSIZE_T z_ssize_t;
# else
+# include <stddef.h>
# include <sys/types.h>
- typedef ssize_t z_ssize_t;
+# ifdef _MSC_VER
+ typedef intptr_t z_ssize_t;
+# else
+ typedef ssize_t z_ssize_t;
+# endif
# endif
# undef z_longlong
#endif
diff --git a/zconf.h.in b/zconf.h.in
index aee94b0..f6481d1 100644
--- a/zconf.h.in
+++ b/zconf.h.in
@@ -240,8 +240,13 @@
# ifdef NO_SSIZE_T
typedef NO_SSIZE_T z_ssize_t;
# else
+# include <stddef.h>
# include <sys/types.h>
- typedef ssize_t z_ssize_t;
+# ifdef _MSC_VER
+ typedef intptr_t z_ssize_t;
+# else
+ typedef ssize_t z_ssize_t;
+# endif
# endif
# undef z_longlong
#endif