2 files changed, 14 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index 8bc96bb45..268fe1a4b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3541,6 +3541,17 @@ fprint_ll(FILE *f, long long n)
         )
 fi
 
+AC_CHECK_DECLS([UINT32_MAX], , , [[
+#ifdef HAVE_SYS_LIMITS_H
+# include <sys/limits.h>
+#endif
+#ifdef HAVE_LIMITS_H
+# include <limits.h>
+#endif
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+]])
 
 # More checks for data types
 AC_CACHE_CHECK([for u_int type], ac_cv_have_u_int, [
diff --git a/defines.h b/defines.h
index 7855fbf90..b3a2b43db 100644
--- a/defines.h
+++ b/defines.h
@@ -244,6 +244,9 @@ typedef unsigned short int u_int16_t;
 #  endif
 #  if (SIZEOF_INT == 4)
 typedef unsigned int u_int32_t;
+#    if defined(HAVE_DECL_UINT32_MAX) && (HAVE_DECL_UINT32_MAX == 0)
+#      define UINT32_MAX        UINT_MAX
+#    endif
 #  else
 #    error "32 bit int type not found."
 #  endif