Fiona  1d ago
WTF, CMake still cannot be arsed to support import std; in C++‽

Frankly, this is a complete joke and unacceptable for a modern build system! Like: “What would you say you are doing for a living?”-tiers level of unacceptable.

They are actively holding back the evolution of C++ at this point!

Anyways, does anyone have a recommendation for a build system that meets the most basic requirements ever:

* Support for globs (So no, Meson is not a valid answer!), I do not consider having to manually edit the build-file each time I add a file acceptable.
* Parallel build, strongly prefered by default!
* Basic support of modules, in particular import std; has to just work!

It is insane that I have to even ask this at this point. C++ modules have been a thing since C++20! This is not just a hald decade old superseeded standard. The version that superseeded it has been superseeded again since this week! (Okay, technically national bodies still have a vote, but the committee has voted it out as completed!)

#cplusplus #modules #cmake
Show threadFiona  1d ago
I had a small program that was creating a makefile; maybe I should get back to developing that and advertize it as the most advanced C++ build system, because it supports some of the really basic features that people need, instead of having 500 nobs for nonsense but lacking support to compile hello world.
Show threadAgnieszka R. Turczyńska1d ago

@Fiona FWIW: I am in the makefile team. Like, I used it to know it by heart (now I forgot some quirks, and would need to go through docs to refresh the knowledge), I am aware of its limitations. And I honestly believe that for a lot of cases you can write a decent makefile ruleset to make an efficient buildsystem. You can call me old fashioned 😊

The cmake is not replacement for make. Cmake is a replacement for autotools, which is, indeed, more than make could offer. Bur if one needs only a dependency based build system, makefile is perfectly fine.

Show threadFiona  
@agturcz I mean, I’m using make a lot to this day, my website is built with it and when I was still working at TU/e we always built LaTeX with makefiles.

It’s a very nice tool, but dependecy detection was at least non-obvious, where my own program came in…
Mar 29 at 5:27pmWeb
Show threadAgnieszka R. Turczyńska1d ago

@Fiona If in gcc (and compatible) world, -MD is useful for that.

There should be something more in the documentation, but I've found this old snippet I am finding useful:

%.o: %.cpp
ifneq ($(VERBOSE),1)
@echo "[g++] $<"
endif
$(VERBPREF)$(COMPILE.cpp) -MD -o $@ $<
@echo "$@: Makefile" >> $*.d; mv $*.d $(DEPDIR)

-include $(SRCS:%.cpp=$(DEPDIR)/%.d)