diff options
| -rw-r--r-- | pkgs/build-support/gcc-wrapper/gcc-wrapper.sh | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/pkgs/build-support/gcc-wrapper/gcc-wrapper.sh b/pkgs/build-support/gcc-wrapper/gcc-wrapper.sh index 0e5b90bb877c..4db12afb5ce8 100644 --- a/pkgs/build-support/gcc-wrapper/gcc-wrapper.sh +++ b/pkgs/build-support/gcc-wrapper/gcc-wrapper.sh @@ -113,8 +113,9 @@ if test -n "$NIX_GCC_WRAPPER_EXEC_HOOK"; then fi -# Call the real `gcc'. Filter out warnings about unused `-B' flags, -# since they confuse some programs. -@gccProg@ ${extraBefore[@]} "${params[@]}" ${extraAfter[@]} \ - | (grep -v 'file path prefix' || true) -exit ${PIPESTATUS[0]} +# 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). +(@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 $? |