[PATCH] libtracecmd: Add -lpthread to build libtracecmd

[PATCH] libtracecmd: Add -lpthread to build libtracecmd

[Steven Rostedt]

From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>

On Debian, the following error occurred on installing the library.

/usr/bin/ld: /usr/local/lib64/libtracecmd.so: undefined reference to `pthread_barrier_init'
/usr/bin/ld: /usr/local/lib64/libtracecmd.so: undefined reference to `pthread_barrier_wait'
/usr/bin/ld: /usr/local/lib64/libtracecmd.so: undefined reference to `pthread_join'
/usr/bin/ld: /usr/local/lib64/libtracecmd.so: undefined reference to `pthread_getaffinity_np'
/usr/bin/ld: /usr/local/lib64/libtracecmd.so: undefined reference to `pthread_create'
/usr/bin/ld: /usr/local/lib64/libtracecmd.so: undefined reference to `pthread_barrier_destroy'
/usr/bin/ld: /usr/local/lib64/libtracecmd.so: undefined reference to `pthread_setaffinity_np'
collect2: error: ld returned 1 exit status

Include -lpthread to libtracecmd to allow it to use the pthread functions.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 lib/trace-cmd/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/trace-cmd/Makefile b/lib/trace-cmd/Makefile
index afd74e1d..9bba5a21 100644
--- a/lib/trace-cmd/Makefile
+++ b/lib/trace-cmd/Makefile
@@ -44,7 +44,7 @@ $(DEPS): | $(bdir)
 $(LIBTRACECMD_STATIC): $(OBJS)
 	$(Q)$(call do_build_static_lib)
 
-LIBS = $(LIBTRACEEVENT_LDLAGS) $(LIBTRACEFS_LDLAGS)
+LIBS = $(LIBTRACEEVENT_LDLAGS) $(LIBTRACEFS_LDLAGS) -lpthread
 
 $(LIBTRACECMD_SHARED_VERSION): $(LIBTRACECMD_SHARED)
 	@ln -sf $(<F) $@
-- 
2.29.2