diff --git a/configure.ac b/configure.ac
index 4b3d209..e56e39d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -33,7 +33,7 @@ case $host_os in
 		;;
 	*mingw*)
 		HOST_OS=win
-		CFLAGS="$CFLAGS -D_GNU_SOURCE -D_POSIX -D_POSIX_SOURCE -D_REENTRANT -D_POSIX_THREAD_SAFE_FUNCTIONS -DWIN32_LEAN_AND_MEAN -D_WIN32_WINNT=0x0600 -DOPENSSL_NO_SPEED -D__USE_MINGW_ANSI_STDIO"
+		CFLAGS="$CFLAGS -D_GNU_SOURCE -D_POSIX -D_POSIX_SOURCE -D_REENTRANT -D_POSIX_THREAD_SAFE_FUNCTIONS -DWIN32_LEAN_AND_MEAN -D_WIN32_WINNT=0x0600 -DOPENSSL_NO_SPEED -DNO_SYSLOG -D__USE_MINGW_ANSI_STDIO"
 		AC_SUBST([PLATFORM_LDADD], ['-lws2_32'])
 		;;
 	*solaris*)
diff --git a/crypto/Makefile.am b/crypto/Makefile.am
index 171d662..e5a4d4d 100644
--- a/crypto/Makefile.am
+++ b/crypto/Makefile.am
@@ -8,7 +8,7 @@ lib_LTLIBRARIES = libcrypto.la
 
 EXTRA_DIST = VERSION
 
-libcrypto_la_LDFLAGS = -version-info @LIBCRYPTO_VERSION@
+libcrypto_la_LDFLAGS = -version-info @LIBCRYPTO_VERSION@ -no-undefined
 libcrypto_la_LIBADD = libcompat.la libcompatnoopt.la
 libcrypto_la_CFLAGS = $(CFLAGS) $(USER_CFLAGS)
 libcrypto_la_CFLAGS += -DOPENSSL_NO_HW_PADLOCK
diff --git a/ssl/Makefile.am b/ssl/Makefile.am
index 87aeff6..5dad39f 100644
--- a/ssl/Makefile.am
+++ b/ssl/Makefile.am
@@ -4,7 +4,7 @@ lib_LTLIBRARIES = libssl.la
 
 EXTRA_DIST = VERSION
 
-libssl_la_LDFLAGS = -version-info @LIBSSL_VERSION@
+libssl_la_LDFLAGS = -version-info @LIBSSL_VERSION@ -no-undefined
 libssl_la_CFLAGS = $(CFLAGS) $(USER_CFLAGS)
 libssl_la_LIBADD = ../crypto/libcrypto.la
 
diff --git a/tls/Makefile.am b/tls/Makefile.am
index 31ee861..cba2b9e 100644
--- a/tls/Makefile.am
+++ b/tls/Makefile.am
@@ -5,7 +5,7 @@ lib_LTLIBRARIES = libtls.la
 
 EXTRA_DIST = VERSION
 
-libtls_la_LDFLAGS = -version-info @LIBTLS_VERSION@
+libtls_la_LDFLAGS = -version-info @LIBTLS_VERSION@ -no-undefined
 libtls_la_CFLAGS = $(CFLAGS) $(USER_CFLAGS)
 libtls_la_LIBADD = ../ssl/libssl.la