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-rw-r--r--sim/rx/configure.in1
1 files changed, 1 insertions, 0 deletions
diff --git a/sim/rx/configure.in b/sim/rx/configure.in
index c97270ae3a4..7c518154978 100644
--- a/sim/rx/configure.in
+++ b/sim/rx/configure.in
@@ -21,6 +21,7 @@ dnl
AC_PREREQ(2.5)dnl
AC_INIT(Makefile.in)
AC_CONFIG_HEADER(config.h:config.in)
+AC_CHECK_HEADERS(getopt.h)
sinclude(../common/aclocal.m4)