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-rw-r--r--sim/h8300/configure.ac2
1 files changed, 1 insertions, 1 deletions
diff --git a/sim/h8300/configure.ac b/sim/h8300/configure.ac
index 177f7de..8dc33c4 100644
--- a/sim/h8300/configure.ac
+++ b/sim/h8300/configure.ac
@@ -8,6 +8,6 @@ SIM_AC_OPTION_ENDIAN(BIG)
SIM_AC_OPTION_ALIGNMENT(NONSTRICT_ALIGNMENT)
SIM_AC_OPTION_WARNINGS(no)
-AC_CHECK_HEADERS(sys/param.h)
+AC_CHECK_HEADERS_ONCE(sys/param.h)
SIM_AC_OUTPUT