gprbuild can't locate gprconfig for auto-configuration

[coffeebe4code]

gprbuild --version

GPRBUILD Community 2021 (20210519) (x86_64-pc-linux-gnu)
Copyright (C) 2004-2021, AdaCore
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

gprconfig --version

GPRCONFIG Community 2021 (20210519) (x86_64-pc-linux-gnu)
Copyright (C) 2006-2021, AdaCore
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

they are clearly accessible and on my path.

echo $PATH

~/opt/GNAT/2021/bin

I installed this version from the Ada Core Website.

https://community.download.adacore.com/v1/f3a99d283f7b3d07293b2e1d07de00e31e332325?filename=gnat-2021-20210519-x86_64-linux-bin&rand=1389

However, I did not select to install the visual GNAT studio, as i planned to use vim only.

Here is the build.gpr file

project Build is
   for Main use ("main.adb"); -- renamed the greet.adb to main.adb
   for Languages use ("Ada");

   package Compiler is
      for Default_Switches ("Ada") use ("-g", "-O0", "-gnata", "-gnatwa");
   end Compiler;

   package Builder is
      for Default_Switches ("Ada") use ("-g");
      for Global_Configuration_Pragmas use "main.adc";
   end Builder;

end Build;

I pulled that directly from your websites first example source code. https://learn.adacore.com/courses/intro-to-ada/chapters/imperative_language.html

Here is the command I ran, and finally the output

gprbuild -q -P build.gpr

gprbuild: could not locate gprconfig for auto-configuration

[coffeebe4code]

I reinstalled with the studio. After having an error with libtinfo.so.5 not existing and linking a version i had like this. sudo ln -s /lib/x86_64-linux-gnu/libtinfo.so.6 /lib/x86_64-linux-gnu/libtinfo.so.5

I ran gnatstudio. and was able to get a simple hello project compiling with ease.

with Ada.Text_IO; use Ada.Text_IO;

procedure main is
begin
   Put_Line ("hello");
end main;

here is the run command. gprbuild -d -P/home/christopher/default.gpr /home/christopher/main.adb and output.

/home/christopher/main
hello

So I thought that whatever magic the studio did, my next terminal session would work, this was not the case. I still get the same error.

[t-14]

I don't think gnatstudio comes with any particular magic that would affect command line tools, so this must be a problem in your environment (which apparently changes into a correct one if you run from gnatstudio). What you can try to do to troubleshoot it is open a terminal under gnatstudio control (View->OS Shell) and run your command from there. If it works, you can try checking what's different with your regular console, by running e.g. "set" etc. Let us know what it gives.

[coffeebe4code]

ahh, wow. I'm an idiot. On my path.

~/opt/GNAT/2021/bin:$PATH it's obviously, $HOME/opt/GNAT/2021/bin:$PATH

[t-14]

Ok, happy to hear you figured out the problem.