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#! @shell@
set -eu -o pipefail +o posix
shopt -s nullglob
if (( "${NIX_DEBUG:-0}" >= 7 )); then
set -x
fi
path_backup="$PATH"
# That @-vars are substituted separately from bash evaluation makes
# shellcheck think this, and others like it, are useless conditionals.
# shellcheck disable=SC2157
if [[ -n "@coreutils_bin@" && -n "@gnugrep_bin@" ]]; then
PATH="@coreutils_bin@/bin:@gnugrep_bin@/bin"
fi
source @out@/nix-support/utils.bash
# Flirting with a layer violation here.
if [ -z "${NIX_BINTOOLS_WRAPPER_@infixSalt@_FLAGS_SET:-}" ]; then
source @bintools@/nix-support/add-flags.sh
fi
# Put this one second so libc ldflags take priority.
if [ -z "${NIX_CC_WRAPPER_@infixSalt@_FLAGS_SET:-}" ]; then
source @out@/nix-support/add-flags.sh
fi
# Parse command line options and set several variables.
# For instance, figure out if linker flags should be passed.
# GCC prints annoying warnings when they are not needed.
dontLink=0
nonFlagArgs=0
# shellcheck disable=SC2193
expandResponseParams "$@"
declare -i n=0
nParams=${#params[@]}
while (( "$n" < "$nParams" )); do
p=${params[n]}
p2=${params[n+1]:-} # handle `p` being last one
if [ "$p" = -c ]; then
dontLink=1
elif [ "$p" = -S ]; then
dontLink=1
elif [ "$p" = -E ]; then
dontLink=1
elif [ "$p" = -E ]; then
dontLink=1
elif [ "$p" = -M ]; then
dontLink=1
elif [ "$p" = -MM ]; then
dontLink=1
elif [[ "$p" = -x && "$p2" = *-header ]]; then
dontLink=1
elif [[ "$p" != -?* ]]; then
# A dash alone signifies standard input; it is not a flag
nonFlagArgs=1
fi
n+=1
done
# If we pass a flag like -Wl, then gcc will call the linker unless it
# can figure out that it has to do something else (e.g., because of a
# "-c" flag). So if no non-flag arguments are given, don't pass any
# linker flags. This catches cases like "gcc" (should just print
# "gcc: no input files") and "gcc -v" (should print the version).
if [ "$nonFlagArgs" = 0 ]; then
dontLink=1
fi
# Optionally filter out paths not refering to the store.
if [[ "${NIX_ENFORCE_PURITY:-}" = 1 && -n "$NIX_STORE" ]]; then
rest=()
nParams=${#params[@]}
declare -i n=0
while (( "$n" < "$nParams" )); do
p=${params[n]}
p2=${params[n+1]:-} # handle `p` being last one
if [ "${p:0:3}" = -L/ ] && badPath "${p:2}"; then
skip "${p:2}"
elif [ "$p" = -L ] && badPath "$p2"; then
n+=1; skip "$p2"
elif [ "${p:0:3}" = -I/ ] && badPath "${p:2}"; then
skip "${p:2}"
elif [ "$p" = -I ] && badPath "$p2"; then
n+=1; skip "$p2"
elif [ "${p:0:4}" = -aI/ ] && badPath "${p:3}"; then
skip "${p:3}"
elif [ "$p" = -aI ] && badPath "$p2"; then
n+=1; skip "$p2"
elif [ "${p:0:4}" = -aO/ ] && badPath "${p:3}"; then
skip "${p:3}"
elif [ "$p" = -aO ] && badPath "$p2"; then
n+=1; skip "$p2"
elif [ "$p" = -isystem ] && badPath "$p2"; then
n+=1; skip "$p2"
else
rest+=("$p")
fi
n+=1
done
# Old bash empty array hack
params=(${rest+"${rest[@]}"})
fi
# Clear march/mtune=native -- they bring impurity.
if [ "$NIX_@infixSalt@_ENFORCE_NO_NATIVE" = 1 ]; then
rest=()
# Old bash empty array hack
for p in ${params+"${params[@]}"}; do
if [[ "$p" = -m*=native ]]; then
skip "$p"
else
rest+=("$p")
fi
done
# Old bash empty array hack
params=(${rest+"${rest[@]}"})
fi
if [ "$(basename $0)x" = "gnatmakex" ]; then
extraBefore=("--GNATBIND=@out@/bin/gnatbind" "--GNATLINK=@out@/bin/gnatlink")
extraAfter=($NIX_@infixSalt@_GNATFLAGS_COMPILE)
fi
if [ "$(basename $0)x" = "gnatbindx" ]; then
extraBefore=()
extraAfter=($NIX_@infixSalt@_GNATFLAGS_COMPILE)
fi
if [ "$(basename $0)x" = "gnatlinkx" ]; then
extraBefore=()
extraAfter=("--GCC=@out@/bin/gcc")
fi
# As a very special hack, if the arguments are just `-v', then don't
# add anything. This is to prevent `gcc -v' (which normally prints
# out the version number and returns exit code 0) from printing out
# `No input files specified' and returning exit code 1.
if [ "$*" = -v ]; then
extraAfter=()
extraBefore=()
fi
# Optionally print debug info.
if (( "${NIX_DEBUG:-0}" >= 1 )); then
# Old bash workaround, see ld-wrapper for explanation.
echo "extra flags before to @prog@:" >&2
printf " %q\n" ${extraBefore+"${extraBefore[@]}"} >&2
echo "original flags to @prog@:" >&2
printf " %q\n" ${params+"${params[@]}"} >&2
echo "extra flags after to @prog@:" >&2
printf " %q\n" ${extraAfter+"${extraAfter[@]}"} >&2
fi
PATH="$path_backup"
# Old bash workaround, see above.
exec @prog@ \
${extraBefore+"${extraBefore[@]}"} \
${params+"${params[@]}"} \
${extraAfter+"${extraAfter[@]}"}
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