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-rw-r--r--configure.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index c54b4a347c..513e3cc704 100644
--- a/configure.in
+++ b/configure.in
@@ -3555,7 +3555,7 @@ if test "${ARCH_FLAG}"; then
LDFLAGS=`echo "$LDFLAGS" | sed "s| *$archflagpat"'||'`
fi
warnflags="$rb_cv_warnflags"
-AC_SUBST(cppflags, [])dnl
+AC_SUBST(cppflags)dnl
AC_SUBST(cflags, ["$orig_cflags "'${optflags} ${debugflags} ${warnflags}'])dnl
AC_SUBST(cxxflags, ["$orig_cxxflags "'${optflags} ${debugflags} ${warnflags}'])dnl
AC_SUBST(optflags)dnl