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libtracecmd: Add -lpthread to build libtracecmd

Message ID 20210408205037.4f871cda@oasis.local.home (mailing list archive)
State Accepted
Commit 6da565a10fa20052ca7d6cb0ac6331ef2ccd1c1a
Headers show
Series libtracecmd: Add -lpthread to build libtracecmd | expand

Commit Message

Steven Rostedt April 9, 2021, 12:50 a.m. UTC 
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(-)
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Patch

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) $@