From: Mingli Yu <Mingli.Yu@xxxxxxxxxxxxx> There comes below error when run "make -C tests/nsm_client nsm_client" | nlm_sm_inter_svc.c:20:1: error: no previous prototype for 'nlm_sm_prog_3' [-Werror=missing-prototypes] It is because rpcgen doesn't generate -Wmissing-prototypes free code for nlm_sm_inter_svc.c with below logic in tests/nsm_client/Makefile.am [snip] GENFILES_SVC = nlm_sm_inter_svc.c [snip] $(GENFILES_SVC): %_svc.c: %.x $(RPCGEN) test -f $@ && rm -rf $@ || true $(RPCGEN) -m -o $@ $< Signed-off-by: Mingli Yu <Mingli.Yu@xxxxxxxxxxxxx> --- configure.ac | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index 4bf5aea..af86e4e 100644 --- a/configure.ac +++ b/configure.ac @@ -552,7 +552,7 @@ my_am_cflags="\ -Wall \ -Wextra \ $rpcgen_cflags \ - -Werror=missing-prototypes \ + -Wmissing-prototypes \ -Werror=missing-declarations \ -Werror=format=2 \ -Werror=undef \ -- 2.7.4