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-rw-r--r--modules/memchr-tests1
1 files changed, 1 insertions, 0 deletions
diff --git a/modules/memchr-tests b/modules/memchr-tests
index c99e557d4f..c2c9e2bbd9 100644
--- a/modules/memchr-tests
+++ b/modules/memchr-tests
@@ -9,6 +9,7 @@ getpagesize
configure.ac:
gl_FUNC_MMAP_ANON
+AC_CHECK_HEADERS_ONCE([sys/mman.h])
AC_CHECK_FUNCS_ONCE([mprotect])
Makefile.am: