+# Verify that each header-file can be compiled without including another.
+check::
+ @$(SHELL) -c "for header in *.h;\
+ do \
+ [ \$${header} = etip.h ] && continue; \
+ echo \"** testing \$${header}\" ; \
+ echo \"#include <\$${header}>\" >headers.cc; \
+ echo \"int main(int argc, char **argv) { (void) argc; (void) argv; return 0; }\" >>headers.cc; \
+ $(CXX) -c $(CXXFLAGS) $(CPPFLAGS) headers.cc; \
+ done"
+ -@rm -f headers.*
+