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# gcc(1) completion
#
# The only unusual feature is that we don't parse "gcc --help -v" output
# directly, because that would include the options of all the other backend
# tools (linker, assembler, preprocessor, etc) without any indication that
# you cannot feed such options to the gcc driver directly. (For example, the
# linker takes a -z option, but you must type -Wl,-z for gcc.) Instead, we
# ask the driver ("g++") for the name of the compiler ("cc1"), and parse the
# --help output of the compiler.
have gcc &&
_gcc()
{
local cur cc backend
COMPREPLY=()
_get_comp_words_by_ref cur
_expand || return 0
case $1 in
gcj)
backend=jc1
;;
gpc)
backend=gpc1
;;
*77)
backend=f771
;;
*)
backend=cc1 # (near-)universal backend
;;
esac
if [[ "$cur" == -* ]]; then
cc=$( $1 -print-prog-name=$backend )
# sink stderr:
# for C/C++/ObjectiveC it's useless
# for FORTRAN/Java it's an error
COMPREPLY=( $( compgen -W "$( $cc --help 2>/dev/null | \
tr '\t' ' ' | \
sed -e '/^ *-/!d' -e 's/ *-\([^ ]*\).*/-\1/' | \
sort -u )" -- "$cur" ) )
else
_filedir
fi
} &&
complete -o filenames -F _gcc gcc g++ c++ g77 gcj gpc
[ $USERLAND = GNU -o $UNAME = Cygwin ] && \
[ -n "${have:-}" ] && complete -o filenames -F _gcc cc
# Local variables:
# mode: shell-script
# sh-basic-offset: 4
# sh-indent-comment: t
# indent-tabs-mode: nil
# End:
# ex: ts=4 sw=4 et filetype=sh
|
