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rules_foreign_cc
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allow headers-only libraries (#40)

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irengrig 2018-08-20 17:39:35 +02:00 committed by GitHub
parent 45419956f5
commit af3f730c22
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1 changed files with 10 additions and 7 deletions
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17
tools/build_defs/framework.bzl
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@ -75,6 +75,8 @@ CC_EXTERNAL_RULE_ATTRIBUTES = {
"interface_libraries": attr.string_list(mandatory = False),
# Optional names of the resulting binaries.
"binaries": attr.string_list(mandatory = False),
# Flag variable to indicate that the library produces only headers
"headers_only": attr.bool(mandatory = False, default = False),
#
# Optional name of the output subdirectory with pkgconfig files.
"out_pkg_config_dir": attr.string(mandatory = False),
@ -278,13 +280,14 @@ _Outputs = provider(
def _define_outputs(ctx, attrs, lib_name):
static_libraries = []
if (not (hasattr(attrs, "static_libraries") and len(attrs.static_libraries) > 0) and
not (hasattr(attrs, "shared_libraries") and len(attrs.shared_libraries) > 0) and
not (hasattr(attrs, "interface_libraries") and len(attrs.interface_libraries) > 0) and
not (hasattr(attrs, "binaries") and len(attrs.binaries) > 0)):
static_libraries = [lib_name + (".lib" if targets_windows(ctx, None) else ".a")]
else:
static_libraries = attrs.static_libraries
if not hasattr(attrs, "headers_only") or not attrs.headers_only:
if (not (hasattr(attrs, "static_libraries") and len(attrs.static_libraries) > 0) and
not (hasattr(attrs, "shared_libraries") and len(attrs.shared_libraries) > 0) and
not (hasattr(attrs, "interface_libraries") and len(attrs.interface_libraries) > 0) and
not (hasattr(attrs, "binaries") and len(attrs.binaries) > 0)):
static_libraries = [lib_name + (".lib" if targets_windows(ctx, None) else ".a")]
else:
static_libraries = attrs.static_libraries
_check_file_name(lib_name, "Library name")