diff --git a/0001-Use-a-Guard-defined-by-the-spec-and-not-_POSIX.-This.patch b/0001-Use-a-Guard-defined-by-the-spec-and-not-_POSIX.-This.patch
new file mode 100644
index 0000000..87d01c4
--- /dev/null
+++ b/0001-Use-a-Guard-defined-by-the-spec-and-not-_POSIX.-This.patch
@@ -0,0 +1,35 @@
+From c239923641ae52e6c99011c57bc35e86b38f6872 Mon Sep 17 00:00:00 2001
+From: martell <martellmalone@gmail.com>
+Date: Wed, 28 Jan 2015 20:54:58 +0000
+Subject: [PATCH] Use a Guard defined by the spec and not _POSIX. This should
+ also guard from windows programs that assume the functions are unavailable
+
+---
+ mingw-w64-headers/crt/time.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/mingw-w64-headers/crt/time.h b/mingw-w64-headers/crt/time.h
+index b551a27..7b43fd8 100644
+--- a/mingw-w64-headers/crt/time.h
++++ b/mingw-w64-headers/crt/time.h
+@@ -261,7 +261,7 @@ struct timezone {
+ 
+ #pragma pack(pop)
+ 
+-#if defined(_POSIX) || defined(_POSIX_THREAD_SAFE_FUNCTIONS)
++#if defined(_POSIX_C_SOURCE) || defined(_POSIX_THREAD_SAFE_FUNCTIONS)
+ __forceinline struct tm *__cdecl localtime_r(const time_t *_Time, struct tm *_Tm) {
+   return localtime_s(_Tm, _Time) ? NULL : _Tm;
+ }
+@@ -274,7 +274,7 @@ __forceinline char *__cdecl ctime_r(const time_t *_Time, char *_Str) {
+ __forceinline char *__cdecl asctime_r(const struct tm *_Tm, char * _Str) {
+   return asctime_s(_Str, 0x7fffffff, _Tm) ? NULL : _Str;
+ }
+-#endif /* _POSIX */
++#endif /* _POSIX_C_SOURCE */
+ 
+ /* Adding timespec definition.  */
+ #include <sys/timeb.h>
+-- 
+2.2.2
+
diff --git a/mingw-headers.spec b/mingw-headers.spec
index c735bd3..a2bd2d5 100644
--- a/mingw-headers.spec
+++ b/mingw-headers.spec
@@ -22,7 +22,7 @@
 
 Name:           mingw-headers
 Version:        4.0
-Release:        0.1.%{pre}%{?dist}
+Release:        0.2.%{pre}%{?dist}
 Summary:        Win32/Win64 header files
 
 License:        Public Domain and LGPLv2+ and ZPLv2.1
@@ -46,6 +46,9 @@ Source0:        http://downloads.sourceforge.net/mingw-w64/mingw-w64-v%{version}
 # happening as the .idl files shouldn't be used by default
 Patch0:         mingw-headers-no-widl.patch
 
+# Fix localtime_s and asctime_s compatibility issue
+Patch1:         0001-Use-a-Guard-defined-by-the-spec-and-not-_POSIX.-This.patch
+
 BuildArch:      noarch
 
 BuildRequires:  mingw32-filesystem >= 95
@@ -92,6 +95,7 @@ unzip %{S:0}
 %endif
 
 %patch0 -p0 -b .idl
+%patch1 -p1 -b .posix_time
 
 
 %build
@@ -126,6 +130,9 @@ rm -f $RPM_BUILD_ROOT%{mingw64_includedir}/pthread_unistd.h
 
 
 %changelog
+* Wed Jan 28 2015 Erik van Pienbroek <epienbro@fedoraproject.org> - 4.0-0.2.rc1
+- Fix localtime_s and asctime_s compatibility issue
+
 * Mon Jan 26 2015 Erik van Pienbroek <epienbro@fedoraproject.org> - 4.0-0.1.rc1
 - Update to 4.0rc1