- # Use \> (marks the end of the word)
- 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' \
- -e 's/-fno-rtti\>/-Fno-rtti/g' \
- -e 's/\s\+-f\S*//g' \
- -e 's/-Fno-rtti\>/-fno-rtti/g' \
- -e 's/^ //'
+ echo " `$1` " | sed -E \
+ -e 's/[[[:space:]]]+-m[[^[:space:]]]*//g' \
+ -e 's/[[[:space:]]]+-DNDEBUG[[[:space:]]]/ /g' \
+ -e 's/[[[:space:]]]+-D_GNU_SOURCE[[[:space:]]]/ /g' \
+ -e 's/[[[:space:]]]+-pedantic[[[:space:]]]/ /g' \
+ -e 's/[[[:space:]]]+-W[[^[:space:]]]*//g' \
+ -e 's/[[[:space:]]]+-O[[^[:space:]]]*//g' \
+ -e 's/[[[:space:]]]+-g[[^[:space:]]]*//g' \
+ -e 's/-fno-rtti[[[:space:]]]/-Fno-rtti /g' \
+ -e 's/[[[:space:]]]+-f[[^[:space:]]]*//g' \
+ -e 's/-Fno-rtti[[[:space:]]]/-fno-rtti /g' \
+ -e 's/^[[[:space:]]]//' \
+ -e 's/[[[:space:]]]$//'