1. ltp-signalfd.m4: be more strict with AC_CHECK_HEADERS by encapsulating the header items in [].
2. Change AC_CHECK_HEADERS_ONCE with AC_CHECK_HEADERS as my work copy of autoconf 2.61 / m4 pukes on this defun and improperly parses the header tokens.
Signed-off-by: Garrett Cooper <yanegomi@gmail.com>
diff --git a/configure.ac b/configure.ac
index 020f2f9..eeee355 100644
--- a/configure.ac
+++ b/configure.ac
@@ -29,7 +29,7 @@
AC_PREFIX_DEFAULT(/opt/ltp)
-AC_CHECK_HEADERS_ONCE([ \
+AC_CHECK_HEADERS([ \
dmapi.h \
ifaddrs.h \
libaio.h \