Cross Reference: /freebsd-11-stable/contrib/libstdc++/configure

3449 ac_test_CXXFLAGS=${CXXFLAGS+set}
3505 if test "$ac_test_CXXFLAGS" = set; then
8260   ac_test_CXXFLAGS="${CXXFLAGS+set}"
8319   if test "$ac_test_CXXFLAGS" = set; then
8671   ac_test_CXXFLAGS="${CXXFLAGS+set}"
29176   ac_test_CXXFLAGS="${CXXFLAGS+set}"
32711   ac_test_CXXFLAGS="${CXXFLAGS+set}"
53216   ac_test_CXXFLAGS="${CXXFLAGS+set}"
54581   ac_test_CXXFLAGS="${CXXFLAGS+set}"
75086   ac_test_CXXFLAGS="${CXXFLAGS+set}"
78718   ac_test_CXXFLAGS="${CXXFLAGS+set}"
78777   if test "$ac_test_CXXFLAGS" = set; then
78955   ac_test_CXXFLAGS="${CXXFLAGS+set}"
99460   ac_test_CXXFLAGS="${CXXFLAGS+set}"