Index: libgcrypt-1.9.3/tests/Makefile.am
===================================================================
--- libgcrypt-1.9.3.orig/tests/Makefile.am
+++ libgcrypt-1.9.3/tests/Makefile.am
@@ -74,7 +74,7 @@ prime_LDADD = $(standard_ldadd) @LDADD_F
 t_mpi_bit_LDADD = $(standard_ldadd) @LDADD_FOR_TESTS_KLUDGE@
 t_secmem_LDADD = $(standard_ldadd) @LDADD_FOR_TESTS_KLUDGE@
 testapi_LDADD = $(standard_ldadd) @LDADD_FOR_TESTS_KLUDGE@
-t_lock_LDADD = $(standard_ldadd) $(GPG_ERROR_MT_LIBS) @LDADD_FOR_TESTS_KLUDGE@
+t_lock_LDADD = $(standard_ldadd) $(GPG_ERROR_MT_LIBS) -lpthread @LDADD_FOR_TESTS_KLUDGE@
 t_lock_CFLAGS = $(GPG_ERROR_MT_CFLAGS)
 testdrv_LDADD = $(LDADD_FOR_TESTS_KLUDGE)