Fix uses of std++ on bsd (#14860)

This fix is the same as #14542 but for freebsd and openbsd Hopefully fixes bazelbuild/rules_rust#978 Closes #14668. PiperOrigin-RevId: 429354084 (cherry picked from commit a987b98) Co-authored-by: Keith Smiley <[email protected]>
bazelbuild · Feb 17, 2022 · 031a772 · 031a772
1 parent 3297d92
commit 031a772
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/tools/cpp/cc_toolchain_config.bzl b/tools/cpp/cc_toolchain_config.bzl
@@ -371,7 +371,7 @@ def _impl(ctx):
                     flag_groups = [
                         flag_group(
                             flags = [
-                                "-lstdc++",
+                                "-lc++",
                                 "-Wl,-z,relro,-z,now",
                                 "-no-canonical-prefixes",
                             ],

diff --git a/tools/cpp/unix_cc_configure.bzl b/tools/cpp/unix_cc_configure.bzl
@@ -340,6 +340,7 @@ def configure_unix_toolchain(repository_ctx, cpu_value, overriden_tools):
 
     repository_ctx.file("tools/cpp/empty.cc", "int main() {}")
     darwin = cpu_value.startswith("darwin")
+    bsd = cpu_value == "freebsd" or cpu_value == "openbsd"
 
     cc = find_cc(repository_ctx, overriden_tools)
     is_clang = _is_clang(repository_ctx, cc)
@@ -400,7 +401,8 @@ def configure_unix_toolchain(repository_ctx, cpu_value, overriden_tools):
         False,
     ), ":")
 
-    bazel_linkopts = "-lc++:-lm" if darwin else "-lstdc++:-lm"
+    use_libcpp = darwin or bsd
+    bazel_linkopts = "-lc++:-lm" if use_libcpp else "-lstdc++:-lm"
     bazel_linklibs = ""
     if repository_ctx.flag_enabled("incompatible_linkopts_to_linklibs"):
         bazel_linkopts, bazel_linklibs = bazel_linklibs, bazel_linkopts