email plugin: stop linking with libpthread

The collectd daemon already links with it.

diff --git a/src/Makefile.am b/src/Makefile.am
index f701944..8efc6e7 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -356,7 +356,6 @@ if BUILD_PLUGIN_EMAIL
 pkglib_LTLIBRARIES += email.la
 email_la_SOURCES = email.c
 email_la_LDFLAGS = $(PLUGIN_LDFLAGS)
-email_la_LIBADD = $(PTHREAD_LIBS)
 endif
 
 if BUILD_PLUGIN_ENTROPY