diff --git a/tcl.spec b/tcl.spec
index f190a7218bea50f4bca59dfdc44ef02b8224ec9b..6b83e5032b6e0a662b80e99cb6ee76030b021190 100644
--- a/tcl.spec
+++ b/tcl.spec
@@ -2,7 +2,7 @@
 
 Name:          tcl
 Version:       8.6.10
-Release:       4
+Release:       5
 Epoch:         1
 Summary:       The Tool Command Language implementation
 License:       BSD
@@ -59,7 +59,11 @@ The development files for tcl.
 cd unix
 autoconf
 %configure --enable-threads --enable-symbols --enable-shared --enable-dtrace
+%ifnarch loongarch64
 %make_build CFLAGS="%{optflags}" TCL_LIBRARY=%{_datadir}/%{name}%{MAJOR}
+%else
+%make_build CFLAGS="-Wl,--whole-archive -lpthread -Wl,--no-whole-archive" TCL_LIBRARY=%{_datadir}/%{name}%{MAJOR}
+%endif
 
 %install
 cd unix
@@ -128,6 +132,9 @@ make test
 %{_mandir}/mann/*
 
 %changelog
+* Tue Nov 15 2022 huajingyun <huajingyun@loongson.cn> - 1:8.6.10-5
+- add build flags for weak symbols on loongarch64
+
 * Wed Jun 15 2022 zhangruifang <zhangruifang1@h-partners.com> - 1:8.6.10-4
 - Type:cve
 - ID:NA