Merge pull request #30037 from travisdowns/td-fix-uring-build

bazel: fix liburing configure probe failures on Fedora

Author: travisdowns

bazel/thirdparty/liburing.patch

@@ -1,12 +1,17 @@
---- a/BUILD.bazel	2026-03-24 11:46:07.317446858 -0300
-+++ b/BUILD.bazel	2026-03-25 10:48:54.430923058 -0300
-@@ -20,20 +20,29 @@
+--- a/BUILD.bazel	2026-04-01 10:22:09.813888242 -0300
++++ b/BUILD.bazel	2026-04-01 11:13:26.423352671 -0300
+@@ -20,20 +20,33 @@
          "src/include/liburing/io_uring_version.h",
      ],
      cmd = """
 -            export CC=$(CC) CXX=$(CC)++
 +            export CC=$(CC) CXX=$(CC)++ CFLAGS="$(CC_FLAGS)"
- 
++            # CORE-15978 Skip linking: probes only need compilation,
++            # and because there is no LD_FLAGS equivalent of CC_FLAGS
++            # exposed by bazel, system ld gets used, which can't
++            # resolve sysroot linker scripts in the sandbox.
++            export LDFLAGS="-c"
+
 -            # switch to the package dir to execute "configure" right there
 -            pushd $$(dirname $(location configure))
 -              mkdir -p src/include/liburing
@@ -22,19 +27,26 @@
 +            ln -sf $$pkg_dir/liburing.spec liburing.spec
 +            mkdir -p src/include/liburing
 +            $$pkg_dir/configure --use-libc
- 
+
              # collect the outputs
              for out in $(OUTS); do
 -              cp $$(realpath --relative-to=$(BINDIR) $$out) $$out
 +              cp $${out#$(RULEDIR)/} $$out
              done
            """,
 -    toolchains = ["@bazel_tools//tools/cpp:current_cc_toolchain"],
-+    local = True,
 +    toolchains = [
 +        "@bazel_tools//tools/cpp:current_cc_toolchain",
 +        "@bazel_tools//tools/cpp:cc_flags",
 +    ],
      tools = ["configure"],
  )
- 
+
+@@ -76,6 +89,7 @@
+         "-Wall",
+         "-Wextra",
+         "-fno-stack-protector",
++        "-Wno-unused-parameter",
+         "-include config-host.h",
+     ],
+     includes = ["src/include"],