CDRIVER-727 actually enable coverage in libmongoc

Author: ajdavis

build/autotools/Coverage.m4

@@ -0,0 +1,10 @@
+COVERAGE_CFLAGS=""
+COVERAGE_LDFLAGS=""
+
+if test "$enable_coverage" = "yes"; then
+    COVERAGE_CFLAGS="--coverage -g"
+    COVERAGE_LDFLAGS="-lgcov"
+fi
+
+AC_SUBST(COVERAGE_CFLAGS)
+AC_SUBST(COVERAGE_LDFLAGS)

configure.ac

@@ -40,6 +40,7 @@ m4_include([build/autotools/FindDependencies.m4])
 m4_include([build/autotools/AutoHarden.m4])
 m4_include([build/autotools/MaintainerFlags.m4])
 m4_include([build/autotools/Optimizations.m4])
+m4_include([build/autotools/Coverage.m4])
 m4_include([build/autotools/LDVersionScript.m4])
 
 # We would put AM_INIT_AUTOMAKE into SetupAutomake.m4, but seems to cause

src/Makefile.am

@@ -15,6 +15,7 @@ MONGOC_CPPFLAGS_SHARED = \
 	-DMONGOC_COMPILATION \
 	$(LIBC_FEATURES) \
 	$(OPTIMIZE_CFLAGS) \
+	$(COVERAGE_CFLAGS) \
 	-I$(top_srcdir)/src \
 	-I$(top_srcdir)/src/mongoc \
 	-I$(top_builddir)/src/mongoc \
@@ -34,7 +35,7 @@ libmongoc_priv_la_CPPFLAGS = $(MONGOC_CPPFLAGS_SHARED)
 libmongoc_1_0_la_CPPFLAGS = $(MONGOC_CPPFLAGS_SHARED)
 
 
-MONGOC_LDFLAGS_SHARED = $(OPTIMIZE_LDFLAGS)
+MONGOC_LDFLAGS_SHARED = $(OPTIMIZE_LDFLAGS) $(COVERAGE_LDFLAGS)
 libmongoc_priv_la_LDFLAGS = \
 	$(MONGOC_LDFLAGS_SHARED) \
 	-no-undefined