Adds the Global LDADD option and fed according to the platform

test/Makefile.am

@@ -22,7 +22,7 @@ unit_tests_SOURCES = \
         unit/unit_test.cc
 
 unit_tests_LDADD = \
-	-lrt \
+	$(GLOBAL_LDADD) \
 	$(top_builddir)/src/.libs/libmodsecurity.a \
 	$(CURL_LDADD) \
 	$(GEOIP_LDFLAGS) $(GEOIP_LDADD) \
@@ -51,7 +51,7 @@ regression_tests_SOURCES = \
         regression/custom_debug_log.cc
 
 regression_tests_LDADD = \
-	-lrt \
+	$(GLOBAL_LDADD) \
 	$(top_builddir)/src/.libs/libmodsecurity.a \
 	$(CURL_LDADD) \
 	$(GEOIP_LDFLAGS) $(GEOIP_LDADD) \
@@ -78,7 +78,7 @@ rules_optimization_SOURCES = \
         optimization/optimization.cc
 
 rules_optimization_LDADD = \
-	-lrt \
+	$(GLOBAL_LDADD) \
 	$(top_builddir)/src/.libs/libmodsecurity.a \
 	$(CURL_LDADD) \
 	$(GEOIP_LDFLAGS) $(GEOIP_LDADD) \

test/benchmark/Makefile.am

@@ -6,7 +6,7 @@ benchmark_SOURCES = \
         benchmark.cc
 
 benchmark_LDADD = \
-	-lrt \
+	$(GLOBAL_LDADD) \
 	$(top_builddir)/src/.libs/libmodsecurity.a \
 	$(CURL_LDADD) \
 	$(GEOIP_LDFLAGS) $(GEOIP_LDADD) \