Re: Question WHY is gnu make does not stop on error on rule

[aotto]

On 08.12.22 18:25, Kaz Kylheku wrote:
> On 2022-12-08 09:00, aotto wrote:
> > I found the reason, it was the "-silent" switch.
> >
> >       -s, --silent, --quiet
> >             Silent operation; do not print the commands as they are executed.
> >
> > but in reality the "-silent" switch even disable the "fail-on-error" feature
> Rathern, I suspect yuo have something in the Makefile
> which inspects the flags (MAKEFLAGS variable), and produces different
> behavior.

well, more research

1. it is an automake project with additional "hand-written" rules imported with 
"include"

> grep  MAKEFLAGS Makefile
 sane_makeflags=$$MAKEFLAGS; \
   case $$MAKEFLAGSin \
       sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
             ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
           cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
       cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
       cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
       cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
       $(MAKE) $(AM_MAKEFLAGS) distdir-am
       @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
         $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
         $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \


> grep  silent Makefile
am__v_lt_0 = --silent

command executed: *make -silent MqC.mq.cs*

rules:

MAKE_LNG        :=  cs

MqC.mq.$(MAKE_LNG): | MqC.mq.$(MAKE_LNG).before MqC.mq.$(MAKE_LNG).after

MqC.mq.$(MAKE_LNG).before: $(mqmsgque_meta) $(lng_MqC) $(lng_LIB) $(MqC_before) 
$(MqC_mq_before) $(lib_MqC)

mqmsgque_meta   := $(csmqmsgque_meta)

csmqmsgque_meta  := $(srcdir)/.LibMqMsgque_cs.meta

$(csmqmsgque_meta): LibMqMsgque_cs.h ../libmqmsgque/inline_mq.h 
$(libmqmsgque_meta)

$(csmkkernel_meta) $(csmqmsgque_meta) $(cslcconfig_meta):
    @$(call green,$(c_Meta) -meta $@ -header $<)
    @$(c_Meta) -meta $@ -header $< && touch $@

MqC_mq_after    := libcsmqmsgque.la csmqmsgque.dll


*PROBLEM*: the SECOND "|" command "MqC.mq.$(MAKE_LNG).after" is executed if the 
"-silent" switch is active

MqC.mq.$(MAKE_LNG): | MqC.mq.$(MAKE_LNG).before MqC.mq.$(MAKE_LNG).after


sincerely

ao