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|
#! @shell@ -e
if test -n "$NIX_GCC_WRAPPER_START_HOOK"; then
source "$NIX_GCC_WRAPPER_START_HOOK"
fi
if test -z "$NIX_CROSS_GLIBC_FLAGS_SET"; then
source @out@/nix-support/add-flags
fi
source @out@/nix-support/utils
# Figure out if linker flags should be passed. GCC prints annoying
# warnings when they are not needed.
dontLink=0
if test "$*" = "-v" -o -z "$*"; then
dontLink=1
else
for i in "$@"; do
if test "$i" = "-c"; then
dontLink=1
elif test "$i" = "-S"; then
dontLink=1
elif test "$i" = "-E"; then
dontLink=1
elif test "$i" = "-E"; then
dontLink=1
elif test "$i" = "-M"; then
dontLink=1
elif test "$i" = "-MM"; then
dontLink=1
fi
done
fi
# Optionally filter out paths not refering to the store.
params=("$@")
if test "$NIX_ENFORCE_PURITY" = "1" -a -n "$NIX_STORE"; then
rest=()
n=0
while test $n -lt ${#params[*]}; do
p=${params[n]}
p2=${params[$((n+1))]}
if test "${p:0:3}" = "-L/" && badPath "${p:2}"; then
skip $p
elif test "$p" = "-L" && badPath "$p2"; then
n=$((n + 1)); skip $p2
elif test "${p:0:3}" = "-I/" && badPath "${p:2}"; then
skip $p
elif test "$p" = "-I" && badPath "$p2"; then
n=$((n + 1)); skip $p2
elif test "$p" = "-isystem" && badPath "$p2"; then
n=$((n + 1)); skip $p2
else
rest=("${rest[@]}" "$p")
fi
n=$((n + 1))
done
params=("${rest[@]}")
fi
# Add the flags for the C compiler proper.
extraAfter=($NIX_CROSS_CFLAGS_COMPILE)
extraBefore=()
if test "$dontLink" != "1"; then
# Add the flags that should only be passed to the compiler when
# linking.
extraAfter=(${extraAfter[@]} $NIX_CROSS_CFLAGS_LINK)
# Add the flags that should be passed to the linker (and prevent
# `ld-wrapper' from adding NIX_CROSS_LDFLAGS again).
for i in $NIX_CROSS_LDFLAGS_BEFORE; do
if test "${i:0:3}" = "-L/"; then
extraBefore=(${extraBefore[@]} "$i")
else
extraBefore=(${extraBefore[@]} "-Wl,$i")
fi
done
for i in $NIX_CROSS_LDFLAGS; do
if test "${i:0:3}" = "-L/"; then
extraAfter=(${extraAfter[@]} "$i")
else
extraAfter=(${extraAfter[@]} "-Wl,$i")
fi
done
export NIX_CROSS_LDFLAGS_SET=1
if test "$NIX_STRIP_DEBUG" = "1"; then
# Add executable-stripping flags.
extraAfter=(${extraAfter[@]} $NIX_CFLAGS_STRIP)
fi
fi
# Optionally print debug info.
if test "$NIX_DEBUG" = "1"; then
echo "original flags to @gccProg@:" >&2
for i in "${params[@]}"; do
echo " $i" >&2
done
echo "extraBefore flags to @gccProg@:" >&2
for i in ${extraBefore[@]}; do
echo " $i" >&2
done
echo "extraAfter flags to @gccProg@:" >&2
for i in ${extraAfter[@]}; do
echo " $i" >&2
done
fi
if test -n "$NIX_GCC_WRAPPER_EXEC_HOOK"; then
source "$NIX_GCC_WRAPPER_EXEC_HOOK"
fi
# We want gcc to call the wrapper linker, not that of binutils.
export PATH="@ldPath@:$PATH"
# Call the real `gcc'. Filter out warnings from stderr about unused
# `-B' flags, since they confuse some programs. Deep bash magic to
# apply grep to stderr (by swapping stdin/stderr twice).
if test -z "$NIX_GCC_NEEDS_GREP"; then
@gccProg@ ${extraBefore[@]} "${params[@]}" ${extraAfter[@]}
else
(@gccProg@ ${extraBefore[@]} "${params[@]}" ${extraAfter[@]} 3>&2 2>&1 1>&3- \
| (grep -v 'file path prefix' || true); exit ${PIPESTATUS[0]}) 3>&2 2>&1 1>&3-
exit $?
fi
|