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-rw-r--r--m4/readline.m42
1 files changed, 2 insertions, 0 deletions
diff --git a/m4/readline.m4 b/m4/readline.m4
index 5c0bb1ea..12f389bf 100644
--- a/m4/readline.m4
+++ b/m4/readline.m4
@@ -39,6 +39,8 @@ AC_DEFUN([GAWK_CHECK_READLINE],
AC_TRY_RUN(
dnl source program:
AC_LANG_SOURCE([[#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
#include <readline/readline.h>
#include <readline/history.h>