From 71b34003ca66e57bb8bb78a94686254679d2745c Mon Sep 17 00:00:00 2001
From: Li Jie <cpunion@gmail.com>
Date: Wed, 19 Mar 2025 14:31:41 +0800
Subject: [PATCH 1/3] debug: rollback unwind to don't depends llvm runtime,
 solve libunwind linking on homebrew linux in llgo formal

---
 c/debug/debug.go                      | 4 ++--
 runtime/internal/clite/debug/debug.go | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/c/debug/debug.go b/c/debug/debug.go
index 76260b0d..16e00eea 100644
--- a/c/debug/debug.go
+++ b/c/debug/debug.go
@@ -11,8 +11,8 @@ import (
 )
 
 const (
-	LLGoPackage = "link: $(llvm-config --ldflags --libs); -lunwind"
-	LLGoFiles   = "$(llvm-config --cflags): _wrap/debug.c"
+	LLGoPackage = "link"
+	LLGoFiles   = "_wrap/debug.c"
 )
 
 type Info struct {
diff --git a/runtime/internal/clite/debug/debug.go b/runtime/internal/clite/debug/debug.go
index 48a27649..10e3a41e 100644
--- a/runtime/internal/clite/debug/debug.go
+++ b/runtime/internal/clite/debug/debug.go
@@ -11,8 +11,8 @@ import (
 )
 
 const (
-	LLGoPackage = "link: $(llvm-config --ldflags --libs); -lunwind"
-	LLGoFiles   = "$(llvm-config --cflags): _wrap/debug.c"
+	LLGoPackage = "link"
+	LLGoFiles   = "_wrap/debug.c"
 )
 
 type Info struct {

From 0e7157626541f58d6ef188b28e1d43c3f2872a01 Mon Sep 17 00:00:00 2001
From: Li Jie <cpunion@gmail.com>
Date: Thu, 20 Mar 2025 11:17:27 +0800
Subject: [PATCH 2/3] build: pass CFLAGS and LDFLAGS to clang

---
 compiler/internal/build/build.go |  4 ++--
 xtool/clang/clang.go             | 27 +++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/compiler/internal/build/build.go b/compiler/internal/build/build.go
index eda0d286..5b5f5a1f 100644
--- a/compiler/internal/build/build.go
+++ b/compiler/internal/build/build.go
@@ -488,7 +488,7 @@ func linkMainPkg(ctx *context, pkg *packages.Package, pkgs []*aPackage, linkArgs
 	if verbose {
 		fmt.Fprintln(os.Stderr, "clang", args)
 	}
-	err = ctx.env.Clang().Exec(args...)
+	err = ctx.env.Clang().Link(args...)
 	check(err)
 
 	if IsRpathChangeEnabled() && runtime.GOOS == "darwin" {
@@ -870,7 +870,7 @@ func clFile(ctx *context, args []string, cFile, expFile string, procFile func(li
 	if verbose {
 		fmt.Fprintln(os.Stderr, "clang", args)
 	}
-	err := ctx.env.Clang().Exec(args...)
+	err := ctx.env.Clang().Compile(args...)
 	check(err)
 	procFile(llFile)
 }
diff --git a/xtool/clang/clang.go b/xtool/clang/clang.go
index cda12809..657883df 100644
--- a/xtool/clang/clang.go
+++ b/xtool/clang/clang.go
@@ -20,6 +20,7 @@ import (
 	"io"
 	"os"
 	"os/exec"
+	"strings"
 )
 
 // -----------------------------------------------------------------------------
@@ -40,6 +41,32 @@ func New(app string) *Cmd {
 	return &Cmd{app, os.Stdout, os.Stderr}
 }
 
+func (p *Cmd) Compile(args ...string) error {
+	// Parse CFLAGS environment variable into separate arguments
+	cflags := strings.Fields(os.Getenv("CFLAGS"))
+	if len(cflags) > 0 {
+		// Create a new slice with capacity for all arguments
+		newArgs := make([]string, 0, len(cflags)+len(args))
+		newArgs = append(newArgs, cflags...)
+		newArgs = append(newArgs, args...)
+		args = newArgs
+	}
+	return p.Exec(args...)
+}
+
+func (p *Cmd) Link(args ...string) error {
+	// Parse LDFLAGS environment variable into separate arguments
+	ldflags := strings.Fields(os.Getenv("LDFLAGS"))
+	if len(ldflags) > 0 {
+		// Create a new slice with capacity for all arguments
+		newArgs := make([]string, 0, len(ldflags)+len(args))
+		newArgs = append(newArgs, ldflags...)
+		newArgs = append(newArgs, args...)
+		args = newArgs
+	}
+	return p.Exec(args...)
+}
+
 // Exec executes a clang command.
 func (p *Cmd) Exec(args ...string) error {
 	cmd := exec.Command(p.app, args...)

From 8c76436d8194b6921c06dbafce8388c6bccd4083 Mon Sep 17 00:00:00 2001
From: Li Jie <cpunion@gmail.com>
Date: Thu, 20 Mar 2025 12:40:37 +0800
Subject: [PATCH 3/3] ci: limit concurrency of doc links checker

---
 .github/workflows/doc.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index 39465e00..de44047f 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -27,7 +27,7 @@ jobs:
         id: lychee
         uses: lycheeverse/lychee-action@v2
         with:
-          args: README.md
+          args: --max-concurrency 3 --retry-wait-time 15 README.md
 
   remote_install:
     strategy: