Use flymake

flymake.mk

+# Taken from http://www.emacswiki.org/emacs/FlyMake#toc4
+
+get_cs_flags = $(foreach target,$(subst .,_,$(subst -,_,$($(2)))),$($(target)_$(1)FLAGS))
+get_cs_all_flags = $(foreach type,$(2),$(call get_cs_flags,$(1),$(type)))
+get_cs_compile = $(if $(subst C,,$(1)),$($(1)COMPILE),$(COMPILE))
+get_cs_cmdline = $(call get_cs_compile,$(1)) $(call get_cs_all_flags,$(1),check_PROGRAMS bin_PROGRAMS lib_LTLIBRARIES) -fsyntax-only
+
+.PHONY: check-syntax
+check-syntax:
+	s=$(suffix $(CHK_SOURCES));\
+	if   [ "$$s" = ".c"   ]; then LANG=C $(call get_cs_cmdline,C) $(CHK_SOURCES);\
+	elif [ "$$s" = ".cc" ]; then LANG=C $(call get_cs_cmdline,CXX) $(call get_cs_cmdline,CPP) $(CHK_SOURCES);\
+	else exit 1; fi

src/Makefile.am

@@ -39,3 +39,4 @@ DISTCHECK_CONFIGURE_FLAGS = --with-dune-common=$(DUNE_COMMON_ROOT) --with-dune-f
 
 include $(top_srcdir)/am/global-rules
 
+include $(top_srcdir)/flymake.mk

src/bisection-simpler-example.cc

+/* -*- mode:c++; mode: flymake -*- */
+
 #include <dune/fufem/interval.hh>
 
 #include <dune/tnnmg/nonlinearities/smallfunctional.hh>

src/bisection-simpler-example2-gradient.cc

+/* -*- mode:c++; mode: flymake -*- */
+
 // FIXME: is there a bette way to do this?
 //#define DUNE_MINIMAL_DEBUG_LEVEL 2
 #include <dune/common/stdstreams.hh>

src/bisection-simpler-example2.cc

+/* -*- mode:c++; mode: flymake -*- */
+
 #include <dune/fufem/interval.hh>
 
 #include <dune/tnnmg/nonlinearities/smallfunctional.hh>