Improve portability

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 6 insertions, 6 deletions

diff --git a/tests/syscall-errors b/tests/syscall-errors
index 0d36428..8d85ded 100644
--- a/tests/syscall-errors
+++ b/tests/syscall-errors
@@ -6,26 +6,26 @@ for os in $(getnamelist OS); do
 	for arch in $(getnamelist ARCH); do
 		archn=$(getnum ARCH $arch)
 		get-syscall-errors.tu $osn $archn $os $arch > $a
-		grep -v '^[0-9]\+ -' >/dev/null < $a
+		grep -v '^[0-9]\{1,\} -' >/dev/null < $a
 		grep -v '^-' < $a > $b
-		grep '^\([0-9]\+\) \1 ' < $a | diff -u $a -
+		grep '^\([0-9]\{1,\}\) \1 ' < $a | diff -u $a -
 		if issupported $os $arch; then
 			(! test "$(cat $a)" = x)
 			if test "$os" = LINUX; then
 				signed=1
-				grep '^[0-9]\+ [0-9]\+ [A-Z0-9_]\+$' >/dev/null < $a
-				test -z "$(grep -v '^[0-9]\+ [0-9]\+ [A-Z0-9_]\+$' < $a)"
+				grep '^[0-9]\{1,\} [0-9]\{1,\} [A-Z0-9_]\{1,\}$' >/dev/null < $a
+				test -z "$(grep -v '^[0-9]\{1,\} [0-9]\{1,\} [A-Z0-9_]\{1,\}$' < $a)"
 				required="ERESTARTSYS ERESTARTNOINTR ERESTARTNOHAND ERESTART_RESTARTBLOCK EPERM ENOENT EDOM ELOOP"
 			else
 				continue;
 			fi
 			for req in $required; do
-				grep '^-\?[0-9]\+ [0-9]\+ '"$req"\$ >/dev/null < $a
+				grep '^-\{0,1\}[0-9]\{1,\} [0-9]\{1,\} '"$req"\$ >/dev/null < $a
 			done
 			cut -d ' ' -f $(( 2 - signed )) < $a > $b && sort -n < $b | diff -u $b -
 			if test -f testcases/errors-$os-$arch; then
 				if ! diff -u testcases/errors-$os-$arch $a; then
-					printf '\x1b[33m%s\x1b[m\n' "Maybe new errors have been added for $os on $arch"
+					printf '\033[33m%s\033[m\n' "Maybe new errors have been added for $os on $arch"
 					exit 1
 				fi
 			fi