diff --git a/submodules/build/openssl.patch b/submodules/build/openssl.patch
new file mode 100644
index 000000000..d4013d0e4
--- /dev/null
+++ b/submodules/build/openssl.patch
@@ -0,0 +1,11 @@
+--- crypto/ui/ui_openssl.c.ori	2011-03-18 18:09:26.000000000 +0100
++++ crypto/ui/ui_openssl.c	2011-03-18 18:09:44.000000000 +0100
+@@ -404,7 +404,7 @@
+ 	return 1;
+ 	}
+ 
+-static volatile sig_atomic_t intr_signal;
++static volatile int intr_signal;
+ #endif
+ 
+ static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl)