Fix linker errors when building Tor.

This patch fixes linking errors when compiling Tor with the dirauth
module disabled.

See: https://bugs.torproject.org/26418

diff --git a/src/or/include.am b/src/or/include.am
index 33d76eebd3c6c187da1ac0e1a3ffbee006794f6b..59d593a5e9476bdfc59eb022f0f8c24348d8565c 100644 (file)
--- a/src/or/include.am
+++ b/src/or/include.am
@@ -116,8 +116,9 @@ LIBTOR_A_SOURCES = \
 # Modules are conditionnally compiled in tor starting here. We add the C files
 # only if the modules has been enabled at configure time. We always add the
 # source files of every module to libtor-testing.a so we can build the unit
-# tests for everything.
+# tests for everything. See the UNITTESTS_ENABLED branch below.
 #
+LIBTOR_TESTING_A_SOURCES = $(LIBTOR_A_SOURCES)
 
 # The Directory Authority module.
 MODULE_DIRAUTH_SOURCES = \
@@ -131,7 +132,11 @@ endif
 
 src_or_libtor_a_SOURCES = $(LIBTOR_A_SOURCES)
 if UNITTESTS_ENABLED
-src_or_libtor_testing_a_SOURCES = $(LIBTOR_A_SOURCES)
+
+# Add the sources of the modules that are needed for tests to work here.
+LIBTOR_TESTING_A_SOURCES += $(MODULE_DIRAUTH_SOURCES)
+
+src_or_libtor_testing_a_SOURCES = $(LIBTOR_TESTING_A_SOURCES)
 else
 src_or_libtor_testing_a_SOURCES =
 endif