diff --git a/devel/m6811-gcc/Makefile b/devel/m6811-gcc/Makefile
index 4aaaf37f22b1..453debf98000 100644
--- a/devel/m6811-gcc/Makefile
+++ b/devel/m6811-gcc/Makefile
@@ -22,7 +22,9 @@ BUILD_DEPENDS=	${LOCALBASE}/bin/m6811-elf-as:${PORTSDIR}/devel/${PKGNAMEPREFIX}b
 BUILD_DEPENDS+=	autoconf:${PORTSDIR}/devel/autoconf
 
 # Configuration alpha-unknown-freebsdelf not supported
-#ONLY_FOR_ARCHS=	i386
+# Configuration sparc64-unknown-freebsdelf not supported
+#	compilation stops with intermal compiler errors.
+ONLY_FOR_ARCHS=	i386
 
 USE_GMAKE=	yes
 HAS_CONFIGURE=	yes
diff --git a/devel/m6811-gcc/files/patch-libiberty-strerror.c b/devel/m6811-gcc/files/patch-libiberty-strerror.c
new file mode 100644
index 000000000000..e6532458c516
--- /dev/null
+++ b/devel/m6811-gcc/files/patch-libiberty-strerror.c
@@ -0,0 +1,13 @@
+--- libiberty/strerror.c.orig	Mon May 29 13:45:32 2000
++++ libiberty/strerror.c	Wed Dec 11 21:03:00 2002
+@@ -465,8 +465,8 @@
+ 
+ #else
+ 
+-extern int sys_nerr;
+-extern char *sys_errlist[];
++extern const int sys_nerr;
++extern const char *sys_errlist[];
+ 
+ #endif
+ 
diff --git a/devel/m6811-gcc/files/patch-libiberty-strsignal.c b/devel/m6811-gcc/files/patch-libiberty-strsignal.c
new file mode 100644
index 000000000000..fa635baf14b1
--- /dev/null
+++ b/devel/m6811-gcc/files/patch-libiberty-strsignal.c
@@ -0,0 +1,11 @@
+--- libiberty/strsignal.c.orig	Mon May 29 13:45:32 2000
++++ libiberty/strsignal.c	Wed Dec 11 21:04:43 2002
+@@ -247,7 +247,7 @@
+ #else
+ 
+ #ifdef NSIG
+-static int sys_nsig = NSIG;
++static const int sys_nsig = NSIG;
+ #else
+ #ifdef _NSIG
+ static int sys_nsig = _NSIG;