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-rw-r--r--configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index d9f3ea987..6e6d0e03d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1351,6 +1351,7 @@ AC_C_INLINE
AC_C_VOLATILE
AC_TYPE_SIZE_T
AC_TYPE_MODE_T
+AC_TYPE_SIGNAL
AC_CHECK_FUNCS([sigdescr_np])
AC_DECL_SYS_SIGLIST