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#! /bin/sh
if test -n "$NIX_LD_WRAPPER_START_HOOK"; then
. "$NIX_LD_WRAPPER_START_HOOK"
fi
# Optionally filter out paths not refering to the store.
skip () {
if test "$NIX_DEBUG" = "1"; then
echo "skipping impure path $1" >&2
fi
}
params=("$@")
if test "$NIX_ENFORCE_PURITY" = "1x" -a -n "$NIX_STORE"; then
rest=()
n=0
while test $n -lt ${#params[*]}; do
p=${params[n]}
p2=${params[$((n+1))]}
if test "${p:0:3}" = "-L/" -a "${p:2:${#NIX_STORE}}" != "$NIX_STORE"; then
skip $p
elif test "$p" = "-L" -a "${p2:0:${#NIX_STORE}}" != "$NIX_STORE"; then
n=$((n + 1)); skip $p2
elif test "$p" = "-dynamic-linker" -a "${p2:0:${#NIX_STORE}}" != "$NIX_STORE"; then
n=$((n + 1)); skip $p2
# elif test "${p:0:1}" = "/" -a "${p:0:${#NIX_STORE}}" != "$NIX_STORE"; then
# # We cannot skip this; barf.
# echo "impure path \`$p' used in link"
# exit 1
else
rest=("${rest[@]}" "$p")
fi
n=$((n + 1))
done
params=("${rest[@]}")
fi
extra=()
if test -z "$NIX_LDFLAGS_SET"; then
extra=(${extra[@]} $NIX_LDFLAGS)
fi
if test "$NIX_DEBUG" = "1"; then
echo "original flags to @ld@:" >&2
for i in "${params[@]}"; do
echo " $i" >&2
done
echo "extra flags to @ld@:" >&2
for i in ${extra[@]}; do
echo " $i" >&2
done
fi
if test -n "$NIX_LD_WRAPPER_EXEC_HOOK"; then
. "$NIX_LD_WRAPPER_EXEC_HOOK"
fi
exec @ld@ "${params[@]}" ${extra[@]}
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