Re: GNU Make app and right text output with echo

[Paul Smith]

On Sat, 2022-02-19 at 17:40 +0200, Eli Zaretskii wrote:
> > From: 
> > Date: Sat, 19 Feb 2022 14:25:47 +0100 (CET)
> > 
> > Problem is wisible on follow example of file Makefile.win:
> > 
> > all : 
> >   echo $(pkg-config --libs glib-2.0)
> 
> This is wrong, you want
> 
> all : 
> echo $(shell pkg-config --libs glib-2.0)
> 
> The 'shell' function is missing.

For questions like this you probably want the help-m...@gnu.org mailing
list FYI.

I think the best solution is to escape the "$" so it's passed to the
shell rather than interpreted by make; using the shell function in
recipes is to be discouraged IMO.

So use:

  all : 
 echo $$(pkg-config --libs glib-2.0)

This of course assumes that all other aspects of this system are set up
correctly: running POSIX operations like this on a Windows system
typically requires a lot of other configuration.

Re: GNU Make app and right text output with echo

[Eli Zaretskii]

> From: 
> Date: Sat, 19 Feb 2022 14:25:47 +0100 (CET)
> 
> Problem is wisible on follow example of file Makefile.win:
> 
> all : 
>  echo $(pkg-config --libs glib-2.0)

This is wrong, you want

all : 
echo $(shell pkg-config --libs glib-2.0)

The 'shell' function is missing.

GNU Make app and right text output with echo

[filip-vps]

Hello, i don't know how gnu make works, but i ghave problem with one example
of Makefile code, under windows, using MSYS2 tool. I have tried two make 
applications. Classical make.exe and mingw32.make. Problem is wisible on 
follow example of file Makefile.win:




all :
     echo $(pkg-config --libs glib-2.0)




#-> It shows only command echo and, nothing next.




My ideal output is (from bash shell):




echo $(pkg-config --libs glib-2.0)
-LC:/Apps/msys2/mingw64/lib -lglib-2.0 -lintl



BUT! Your gnu make tool this output not generate.




Why?




Thanks Filip,

Nice Day!

make re-exec regression in 'make -sf -' mode

[Sergei Trofimovich]

Noticed the regression on lowdown-0.10.0 upstream package.

Here is a complete trigger:

$ printf 'all:\n\techo $(CC)' | make -sf -

[good] GNU make 4.3 works as expected:

$ printf 'all:\n\techo $(CC)' | make -sf -
cc

[bad] GNU make from git loops indefinitely in re-execution:

$ printf 'all:\n\techo $(CC)' | ./make -sf -


Curiously space separation workaround is enough to
get the result:

$ printf 'all:\n\techo $(CC)' | ./make -s -f -
cc

Bitsect points at commit 7c4e6b0299 "[SV 60595] Restart
whenever any makefile is rebuilt".

-- 

  Sergei