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-rw-r--r--readline/configure.in1
1 files changed, 1 insertions, 0 deletions
diff --git a/readline/configure.in b/readline/configure.in
index 780b4df..1ed154e 100644
--- a/readline/configure.in
+++ b/readline/configure.in
@@ -129,6 +129,7 @@ fi
case "$host_cpu" in
*cray*) LOCAL_CFLAGS=-DCRAY ;;
+*s390*) LOCAL_CFLAGS=-fsigned-char ;;
esac
case "$host_os" in