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-rw-r--r--configure.ac8
1 files changed, 8 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 113009a..f6e438f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -57,6 +57,14 @@ AC_ARG_WITH(
fi
]
)
+AC_MSG_CHECKING([whether ${SH} supports \`local'])
+if test x"$(${SH} -c 'f() { local v=2; }; v=1; f; printf "%d\n" "${v}";' \
+ 2>&AS_MESSAGE_LOG_FD)" = x'1'; then
+ AC_MSG_RESULT([yes])
+else
+ AC_MSG_RESULT([no])
+ AC_MSG_ERROR([a shell with \`local' is required])
+fi
AC_MSG_CHECKING([whether ${SH} supports 64-bit arithmetic])
if test x"$(${SH} -c 'printf "%s\n" "$((2 << 61))"' 2>&AS_MESSAGE_LOG_FD)" = \
x'4611686018427387904'; then