diff --git a/devel/nspr/files/patch-.._pr_include_md__freebsd.h b/devel/nspr/files/patch-.._pr_include_md__freebsd.h
new file mode 100644
index 000000000000..263d829745d0
--- /dev/null
+++ b/devel/nspr/files/patch-.._pr_include_md__freebsd.h
@@ -0,0 +1,14 @@
+--- ../pr/include/md/_freebsd.h.orig	Sat Apr 22 17:14:55 2006
++++ ../pr/include/md/_freebsd.h	Sat Apr 22 17:14:47 2006
+@@ -106,6 +106,11 @@
+ #define _PR_IPV6_V6ONLY_PROBE
+ #endif
+ 
++#if __FreeBSD_version >= 700016
++#define _PR_HAVE_GETPROTO_R
++#define _PR_HAVE_5_ARG_GETPROTO_R
++#endif
++
+ #define USE_SETJMP
+ 
+ #ifndef _PR_PTHREADS