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doc: explain why we clear CXXFLAGS with enable-debug

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fanquake 2022-02-18 15:53:18 +00:00
parent 55ea6fd250
commit bc7cc57607
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1 changed files with 3 additions and 1 deletions
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4
configure.ac
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@ -361,7 +361,9 @@ case $host in
esac
if test "$enable_debug" = "yes"; then
dnl Clear default -g -O2 flags
dnl If debugging is enabled, and the user hasn't overriden CXXFLAGS, clear
dnl them, to prevent autoconfs "-g -O2" being added. Otherwise we'd end up
dnl with "-O0 -g3 -g -O2".
if test "$CXXFLAGS_overridden" = "no"; then
CXXFLAGS=""
fi