[glibc/release/2.41/master] hurd: Fix tst-stack2 test build on Hurd

[Adhemerval Zanella]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5cf17ebc659c875aff3c49d2a59ce15f46167389

commit 5cf17ebc659c875aff3c49d2a59ce15f46167389
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Fri May 9 10:19:37 2025 -0300

    hurd: Fix tst-stack2 test build on Hurd
    
    It requires $(shared-thread-library).  Fixes 0c342594237.
    
    Checked on a i686-gnu build.
    
    (cherry picked from commit f66cb3c9ebcac80b3200c3aff0e3aed6111547ba)

Diff:
---
 sysdeps/pthread/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sysdeps/pthread/Makefile b/sysdeps/pthread/Makefile
index 17bdd6f49d..7fcbc72bc0 100644
--- a/sysdeps/pthread/Makefile
+++ b/sysdeps/pthread/Makefile
@@ -543,6 +543,7 @@ $(objpfx)tst-create1: $(shared-thread-library)
 $(objpfx)tst-create1.out: $(objpfx)tst-create1mod.so
 
 $(objpfx)tst-stack2.out: $(objpfx)tst-stack2-mod.so
+$(objpfx)tst-stack2-mod.so: $(shared-thread-library)
 LDFLAGS-tst-stack2-mod.so = -Wl,-z,execstack
 ifeq ($(have-no-error-execstack),yes)
 LDFLAGS-tst-stack2-mod.so += -Wl,--no-error-execstack