Additional pthread/glibc 2.34 patch.

https://bugs.gentoo.org/827474
--- a/src/lib/Libpbs/Makefile.am
+++ b/src/lib/Libpbs/Makefile.am
@@ -7,6 +7,7 @@ CLEANFILES = *.gcda *.gcno *.gcov
 lib_LTLIBRARIES = libtorque.la

 libtorque_la_LDFLAGS = -version-info 2:0:0
+libtorque_la_LIBADD = $(PTHREAD_LIBS)

 libtorque_la_SOURCES = ../Libcsv/csv.c ../Libdis/dis.c \
         ../Libdis/discui_.c ../Libdis/discul_.c \