- echo " `$1`" | sed \
- -e 's/\s\+-m\S*//g' \
- -e 's/\s\+-DNDEBUG\>//g' \
- -e 's/\s\+-D_GNU_SOURCE\>//g' \
- -e 's/\s\+-pedantic\>//g' \
- -e 's/\s\+-W\S*//g' \
- -e 's/\s\+-O\S*//g' \
- -e 's/\s\+-g\S*//g' \
+ echo " `$1`" | sed -E \
+ -e 's/[[[:space:]]]+-m[[^[:space:]]]*//g' \
+ -e 's/[[[:space:]]]+-DNDEBUG\>//g' \
+ -e 's/[[[:space:]]]+-D_GNU_SOURCE\>//g' \
+ -e 's/[[[:space:]]]+-pedantic\>//g' \
+ -e 's/[[[:space:]]]+-W[[^[:space:]]]*//g' \
+ -e 's/[[[:space:]]]+-O[[^[:space:]]]*//g' \
+ -e 's/[[[:space:]]]+-g[[^[:space:]]]*//g' \