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-rw-r--r--Build/source/utils/pmx/README4
1 files changed, 4 insertions, 0 deletions
diff --git a/Build/source/utils/pmx/README b/Build/source/utils/pmx/README
index fb6c3cc6c05..dd18f6d4796 100644
--- a/Build/source/utils/pmx/README
+++ b/Build/source/utils/pmx/README
@@ -10,4 +10,8 @@ From all the preprocessor defines arithchk could generate we only might need
'VAX' (most probably irrelevant) and 'NO_LONG_LONG' which can be handled by
the configure script. Thus an empty file arith.h suffices.
+================
+
+Actually, compiling neither signbit.c nor uninit.c the file arith.h is not
+used at all and can bbe omitted.