diff --git a/c/cjson/cjson.go b/c/cjson/cjson.go
index ea1872b4..03a8e5ec 100644
--- a/c/cjson/cjson.go
+++ b/c/cjson/cjson.go
@@ -23,7 +23,7 @@ import (
 )
 
 const (
-	LLGoPackage = "link: $(pkg-config --libs libcjson)"
+	LLGoPackage = "link: $(pkg-config --libs libcjson); -lcjson"
 )
 
 // llgo:type C
diff --git a/c/math/math.go b/c/math/math.go
index dabf419b..ee6c4932 100644
--- a/c/math/math.go
+++ b/c/math/math.go
@@ -22,6 +22,10 @@ import (
 	"github.com/goplus/llgo/c"
 )
 
+const (
+	LLGoPackage = "decl"
+)
+
 //go:linkname Acos C.acos
 func Acos(x float64) float64
 
diff --git a/c/sqlite/sqlite.go b/c/sqlite/sqlite.go
index 1390d665..af60f323 100644
--- a/c/sqlite/sqlite.go
+++ b/c/sqlite/sqlite.go
@@ -23,7 +23,7 @@ import (
 )
 
 const (
-	LLGoPackage = "link: sqlite3"
+	LLGoPackage = "link: $(pkg-config --libs sqlite3); -lsqlite3"
 )
 
 // llgo:type C