Problems compiling 0.9.0: "array aggregate using () is an obsolescent syntax"

[ghost]

Hello,

I am trying to compile 0.9.0 on FreeBSD-14, however, the build will fail at some random point without -j0, or reliably on gl-algebra.ads with -j0.

gprbuild --version returns:

GPRBUILD Pro 18.0w (19940713) (x86_64-portbld-freebsd14.0)

gnat --version returns:

GNAT 12.2.0 20220819 (release) -=> GNAT [FreeBSD64]

After extracting the tarball, cd to the working directory, and:

gprbuild -j0 -p -gnat2012 -XMode=release -XWindows_System=x11 -P ./opengl/opengl.gpr

Results in the following log:

(cd /tmp/openglada/net/fafnir/git/freebsd/ports/main/graphics/openglada/work/OpenGLAda-0.9.0/ &&  /usr/bin/env gprbuild -j0 -p -XMode=release -XWindows_System=x11 -P ./opengl/opengl.gpr )
Setup
   [mkdir]        object directory for project OpenGL
   [mkdir]        library directory for project OpenGL
Compile
   [ada]          gl-api-subprogram_reference.adb
   [ada]          gl-cgl.ads
   [ada]          gl-api-mac_os_x.adb
   [ada]          gl-api-shorts.ads
   [ada]          gl-api.ads
   [ada]          gl-api-singles.ads
   [ada]          gl-load_function_pointers.adb
   [ada]          gl-api-doubles.ads
   [ada]          gl-api-ints.ads
   [ada]          gl-api-uints.ads
   [ada]          gl-objects-framebuffers.adb
   [ada]          gl-fixed-textures.adb
   [ada]          gl-vectors.adb
   [ada]          gl-debug.adb
   [ada]          gl-uniforms.adb
   [ada]          gl-immediate.adb
   [ada]          gl-objects-textures-targets.adb
   [ada]          gl-objects.adb
   [ada]          gl-fixed.adb
   [ada]          gl-objects-queries.adb
   [ada]          gl-enums.ads
   [ada]          gl-objects-programs.adb
   [ada]          gl-low_level-enums.ads
   [ada]          gl-algebra.adb
   [ada]          gl-errors.adb
   [ada]          gl-framebuffer.adb
   [ada]          gl-enums-getter.adb
   [ada]          gl-raster.adb
   [ada]          gl-objects-buffers.adb
   [ada]          gl.adb
   [ada]          gl-files.adb
   [ada]          gl-objects-textures-with_3d_loader.adb
   [ada]          gl-pixels.adb
gl-algebra.ads:109:62: warning: array aggregate using () is an obsolescent syntax, use [] instead [-gnatwj]
gl-algebra.ads:111:62: warning: array aggregate using () is an obsolescent syntax, use [] instead [-gnatwj]
gl-algebra.ads:113:62: warning: array aggregate using () is an obsolescent syntax, use [] instead [-gnatwj]

   compilation of gl-algebra.adb failed

gprbuild: *** compilation phase failed
*** Error code 4

Stop.
make: stopped in /net/fafnir/git/freebsd/ports/main/graphics/openglada

Thanks.

[flyx]

[] is an Ada 202x feature and I'm surprised that GNAT complains here with -gnat2012 when the new standard hasn't even been formally finalized yet. See here for a brief description of the new syntax.

You can probably fix this by replacing (others => <>) with [others => <>] in the referenced file. This project is unmaintained so I won't do anything about it, more so since not everyone is at the newest compiler version and fixing this for you will probably break it for someone else. I don't know what the GNAT folks were thinking.

[ghost]

Thanks, I will have see about patching locally.

The introduction of a new operator into Ada makes no sense, for a system that is meant to facilitate a consistent read, it creates additional mental load, and is probably the result of particular fads that influence the GNAT folks. As an Ada newbie, it is fucking stupid.