Index: Makefile.in
--- Makefile.in.orig	2018-04-10 22:58:15.111852000 +0200
+++ Makefile.in	2018-04-10 22:58:59.496471000 +0200
@@ -407,7 +407,7 @@
 ACLOCAL_AMFLAGS = -I build ${ACLOCAL_FLAGS}
 @ENABLE_DOCUMENTATION_FALSE@doc_subdirs = 
 @ENABLE_DOCUMENTATION_TRUE@doc_subdirs = docs/docs
-SUBDIRS = sigc++ tests examples cmake $(doc_subdirs)
+SUBDIRS = sigc++
 sigc_configdir = $(libdir)/$(SIGCXX_MODULE_NAME)/include
 nodist_sigc_config_HEADERS = sigc++config.h
 pkgconfigdir = $(libdir)/pkgconfig