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-rw-r--r--autoconf/configure.ac2
1 files changed, 1 insertions, 1 deletions
diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 49010c4e4c..3a3dfd881c 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -282,7 +282,7 @@ then
fi
AC_HEADER_MMAP_ANONYMOUS
AC_TYPE_SIGNAL
-AC_CHECK_FUNCS(getcwd gettimeofday strdup strtoq strtoll backtrace)
+AC_CHECK_FUNCS(getcwd gettimeofday strdup strtoq strtoll backtrace isatty)
AC_CHECK_FUNC(mprotect,,AC_MSG_ERROR([Function mprotect() required but not found]))
dnl Determine if the linker supports the -R option.