diff --git a/Makefile b/Makefile
index 57d9c65e03..ff35154375 100644
--- a/Makefile
+++ b/Makefile
@@ -1003,6 +1003,7 @@ ifeq ($(uname_S),IRIX)
 	# issue, comment out the NO_MMAP statement.
 	NO_MMAP = YesPlease
 	NO_REGEX = YesPlease
+	NO_FNMATCH_CASEFOLD = YesPlease
 	SNPRINTF_RETURNS_BOGUS = YesPlease
 	SHELL_PATH = /usr/gnu/bin/bash
 	NEEDS_LIBGEN = YesPlease
@@ -1022,6 +1023,7 @@ ifeq ($(uname_S),IRIX64)
 	# issue, comment out the NO_MMAP statement.
 	NO_MMAP = YesPlease
 	NO_REGEX = YesPlease
+	NO_FNMATCH_CASEFOLD = YesPlease
 	SNPRINTF_RETURNS_BOGUS = YesPlease
 	SHELL_PATH=/usr/gnu/bin/bash
 	NEEDS_LIBGEN = YesPlease
diff --git a/t/test-lib.sh b/t/test-lib.sh
index 48fa516004..cb1ca973aa 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -260,7 +260,7 @@ test_decode_color () {
 			if (n == 47) return "BWHITE";
 		}
 		{
-			while (match($0, /\x1b\[[0-9;]*m/) != 0) {
+			while (match($0, /\033\[[0-9;]*m/) != 0) {
 				printf "%s<", substr($0, 1, RSTART-1);
 				codes = substr($0, RSTART+2, RLENGTH-3);
 				if (length(codes) == 0)