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build-bazel-package: add dontAddBazelOpts arg

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This adds an option to skip adding --copt and --linkopt to Bazel
flags. In some cases, Bazel doesn’t like these flags, like when a
custom toolchain is being used (as opposed to the builtin one. The
compiler can still get the dependencies since it is invoked through
gcc wrapper and picks up the NIX_CFLAGS_COMPILE / NIX_LDFLAGS.
This commit is contained in:
Matthew Bauer 2020-08-28 15:10:59 -05:00
parent 5bd2c3719a
commit 27fb209194
1 changed files with 22 additions and 12 deletions
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34
pkgs/build-support/build-bazel-package/default.nix
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@ -37,6 +37,12 @@ args@{
# Debian-specific /usr/share/java paths, but doesn't in the configured build).
, fetchConfigured ? false
# Don’t add Bazel --copt and --linkopt from NIX_CFLAGS_COMPILE /
# NIX_LDFLAGS. This is necessary when using a custom toolchain which
# Bazel wants all headers / libraries to come from, like when using
# CROSSTOOL. Weirdly, we can still get the flags through the wrapped
# compiler.
, dontAddBazelOpts ? false
, ...
}:
@ -170,6 +176,8 @@ in stdenv.mkDerivation (fBuildAttrs // {
done
'' + fBuildAttrs.preConfigure or "";
inherit dontAddBazelOpts;
buildPhase = fBuildAttrs.buildPhase or ''
runHook preBuild
@ -181,20 +189,22 @@ in stdenv.mkDerivation (fBuildAttrs // {
#
copts=()
host_copts=()
for flag in $NIX_CFLAGS_COMPILE; do
copts+=( "--copt=$flag" )
host_copts+=( "--host_copt=$flag" )
done
for flag in $NIX_CXXSTDLIB_COMPILE; do
copts+=( "--copt=$flag" )
host_copts+=( "--host_copt=$flag" )
done
linkopts=()
host_linkopts=()
for flag in $NIX_LDFLAGS; do
linkopts+=( "--linkopt=-Wl,$flag" )
host_linkopts+=( "--host_linkopt=-Wl,$flag" )
done
if [ -z "''${dontAddBazelOpts:-}" ]; then
for flag in $NIX_CFLAGS_COMPILE; do
copts+=( "--copt=$flag" )
host_copts+=( "--host_copt=$flag" )
done
for flag in $NIX_CXXSTDLIB_COMPILE; do
copts+=( "--copt=$flag" )
host_copts+=( "--host_copt=$flag" )
done
for flag in $NIX_LDFLAGS; do
linkopts+=( "--linkopt=-Wl,$flag" )
host_linkopts+=( "--host_linkopt=-Wl,$flag" )
done
fi
BAZEL_USE_CPP_ONLY_TOOLCHAIN=1 \
USER=homeless-shelter \