check CONST_SIGINT

diff --git a/configure.ac b/configure.ac
index 1489df8..b66966e 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -90,6 +90,12 @@ FPTOOLS_CHECK_HTYPE(uintmax_t, $fptools_cv_default_htype_uintmax)
 FP_CHECK_CONSTS([E2BIG EACCES EADDRINUSE EADDRNOTAVAIL EADV EAFNOSUPPORT EAGAIN EALREADY EBADF EBADMSG EBADRPC EBUSY ECHILD ECOMM ECONNABORTED ECONNREFUSED ECONNRESET EDEADLK EDESTADDRREQ EDIRTY EDOM EDQUOT EEXIST EFAULT EFBIG EFTYPE EHOSTDOWN EHOSTUNREACH EIDRM EILSEQ EINPROGRESS EINTR EINVAL EIO EISCONN EISDIR ELOOP EMFILE EMLINK EMSGSIZE EMULTIHOP ENAMETOOLONG ENETDOWN ENETRESET ENETUNREACH ENFILE ENOBUFS ENODATA ENODEV ENOENT ENOEXEC ENOLCK ENOLINK ENOMEM ENOMSG ENONET ENOPROTOOPT ENOSPC ENOSR ENOSTR ENOSYS ENOTBLK ENOTCONN ENOTDIR ENOTEMPTY ENOTSOCK ENOTTY ENXIO EOPNOTSUPP EPERM EPFNOSUPPORT EPIPE EPROCLIM EPROCUNAVAIL EPROGMISMATCH EPROGUNAVAIL EPROTO EPROTONOSUPPORT EPROTOTYPE ERANGE EREMCHG EREMOTE EROFS ERPCMISMATCH ERREMOTE ESHUTDOWN ESOCKTNOSUPPORT ESPIPE ESRCH ESRMNT ESTALE ETIME ETIMEDOUT ETOOMANYREFS ETXTBSY EUSERS EWOULDBLOCK EXDEV ENOCIGAR], [#include <stdio.h>
 #include <errno.h>])
 
+# we need SIGINT in TopHandler.lhs
+FP_CHECK_CONSTS([SIGINT], [
+#if HAVE_SIGNAL_H
+#include <signal.h>
+#endif])
+
 dnl ** can we open files in binary mode?
 FP_CHECK_CONST([O_BINARY], [#include <fcntl.h>], [0])