diff --git a/configure.ac b/configure.ac
index bc2f1c50..5631eb00 100644
--- a/configure.ac
+++ b/configure.ac
@@ -497,6 +497,7 @@ dnl ######################################################################
 
 AC_CHECK_LIB(m, sqrt)
 AC_CHECK_LIB(rt, clock_gettime)
+AC_CHECK_LIB(pthread, clock_gettime)
 AC_CHECK_LIB(dl, dlopen)
 
 dnl ######################################################################
diff --git a/libutils/platform.h b/libutils/platform.h
index 80eac96a..3196902f 100644
--- a/libutils/platform.h
+++ b/libutils/platform.h
@@ -191,10 +191,6 @@ struct utsname
 #  define IPV6_V6ONLY 27
 # endif
 
-// Not available in MinGW headers unless you raise WINVER and _WIN32_WINNT, but
-// that is very badly supported in MinGW ATM.
-ULONGLONG WINAPI GetTickCount64(void);
-
 #else /* !__MINGW32__ */
 # include <syslog.h>
 #endif
diff --git a/libutils/signal_lib.h b/libutils/signal_lib.h
index 35a1752e..43c0e955 100644
--- a/libutils/signal_lib.h
+++ b/libutils/signal_lib.h
@@ -1,3 +1,5 @@
+#include <signal.h>
+
 static inline void MaskTerminationSignalsInThread()
 {
     /* Mask termination signals in a thread so that they always end up in the