nixpkgs/pkgs/baseenv/gcc-wrapper.sh

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#! /bin/sh
IFS=
realgcc=@GCC@
justcompile=0
for i in $@; do
if test "$i" == "-c"; then
justcompile=1
fi
if test "$i" == "-S"; then
justcompile=1
fi
if test "$i" == "-E"; then
justcompile=1
fi
done
IFS=" "
extra=($NIX_CFLAGS)
if test "$justcompile" != "1"; then
extra=(${extra[@]} $NIX_LDFLAGS)
if test "$NIX_STRIP_DEBUG" == "1"; then
extra=(${extra[@]} -Wl,-s)
fi
fi
if test "$NIX_DEBUG" == "1"; then
echo "extra gcc flags:" >&2
for i in ${extra[@]}; do
echo " $i" >&2
done
fi
IFS=
exec $realgcc $@ ${extra[@]}