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Merge pull request #13907 from abbradar/cpp-wrapper

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cc-wrapper: add C++-specific paths if `-x cpp` is passed
This commit is contained in:
Eelco Dolstra 2016-03-24 18:12:04 +01:00
parent a9d14e3452 87607af7a1
commit 89693e71b9
1 changed files with 24 additions and 18 deletions
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42
pkgs/build-support/cc-wrapper/cc-wrapper.sh
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@ -15,29 +15,37 @@ fi
source @out@/nix-support/utils.sh
# Figure out if linker flags should be passed. GCC prints annoying
# warnings when they are not needed.
# 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
getVersion=0
nonFlagArgs=0
[[ "@prog@" = *++ ]] && isCpp=1 || isCpp=0
for i in "$@"; do
if [ "$i" = -c ]; then
params=("$@")
n=0
while [ $n -lt ${#params[*]} ]; do
p=${params[n]}
p2=${params[$((n+1))]}
if [ "$p" = -c ]; then
dontLink=1
elif [ "$i" = -S ]; then
elif [ "$p" = -S ]; then
dontLink=1
elif [ "$i" = -E ]; then
elif [ "$p" = -E ]; then
dontLink=1
elif [ "$i" = -E ]; then
elif [ "$p" = -E ]; then
dontLink=1
elif [ "$i" = -M ]; then
elif [ "$p" = -M ]; then
dontLink=1
elif [ "$i" = -MM ]; then
elif [ "$p" = -MM ]; then
dontLink=1
elif [ "$i" = -x ]; then
# At least for the cases c-header or c++-header we should set dontLink.
# I expect no one use -x other than making precompiled headers.
elif [[ "$p" = -x && "$p2" = *-header ]]; then
dontLink=1
elif [[ "$p" = -x && "$p2" = c++* && "$isCpp" = 0 ]]; then
isCpp=1
elif [ "$p" = -nostdlib ]; then
isCpp=-1
elif [ "${i:0:1}" != - ]; then
nonFlagArgs=1
elif [ "$i" = -m32 ]; then
@ -45,6 +53,7 @@ for i in "$@"; do
NIX_LDFLAGS="$NIX_LDFLAGS -dynamic-linker $(cat @out@/nix-support/dynamic-linker-m32)"
fi
fi
n=$((n + 1))
done
# If we pass a flag like -Wl, then gcc will call the linker unless it
@ -58,7 +67,6 @@ fi
# Optionally filter out paths not refering to the store.
params=("$@")
if [ "$NIX_ENFORCE_PURITY" = 1 -a -n "$NIX_STORE" ]; then
rest=()
n=0
@ -83,11 +91,9 @@ if [ "$NIX_ENFORCE_PURITY" = 1 -a -n "$NIX_STORE" ]; then
params=("${rest[@]}")
fi
if [[ "@prog@" = *++ ]]; then
if echo "$@" | grep -qv -- -nostdlib; then
NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE ${NIX_CXXSTDLIB_COMPILE-@default_cxx_stdlib_compile@}"
NIX_CFLAGS_LINK="$NIX_CFLAGS_LINK $NIX_CXXSTDLIB_LINK"
fi
if [[ "$isCpp" = 1 ]]; then
NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE ${NIX_CXXSTDLIB_COMPILE-@default_cxx_stdlib_compile@}"
NIX_CFLAGS_LINK="$NIX_CFLAGS_LINK $NIX_CXXSTDLIB_LINK"
fi
# Add the flags for the C compiler proper.