Building as in build.md fails

[simonjwright]

macOS Sequoia 15.0.1, arm64.
GCC 14.2.0 (but see below)

The build failed (see below), so I created integration/vscode/ada/arm64/darwin by hand (I presume it would have happened automatically if the build had succeeded?).

The macOS build assumes it’s running on a workflow, so it tests $RUNNER_OS for macOS. I set it by hand.

The first build failure happened with the toolchain selecting gnat_external 14.2.0:

+ alr exec make -- VERSION= check
alr build -- -XVERSION= -XBUILD_DATE= -m -j0 
ERROR: Trying to set an already defined environment variable:
ERROR:    GNATCOLL_ICONV_ALIRE_PREFIX is already defined as
'/Users/simon/.local/share/alire/builds/gnatcoll_iconv_24.0.0_e90c5b4d/1154afd8dfb66c421cc7685cef5084404b77ddbd8e630b96ffd473827472b613' 
but new value is 
'/Users/simon/.local/share/alire/builds/gnatcoll_iconv_24.0.0_e90c5b4d/28af3b2569f112385848f68796844a7f805ae355c77ca942518966490616e05a'
make: *** [all] Error 1
ERROR: Command ["make", "VERSION=", "check"] exited with code 2

In case it was a toolchain issue, I deleted gnatcoll_iconv_24.0.0_e90c5b4d/ and selected gnat_native 14.2.1: same failure,

+ alr exec make -- VERSION= check
alr build -- -XVERSION= -XBUILD_DATE= -m -j0 
ERROR: Trying to set an already defined environment variable:
ERROR:    GNATCOLL_ICONV_ALIRE_PREFIX is already defined as 
'/Users/simon/.local/share/alire/builds/gnatcoll_iconv_24.0.0_e90c5b4d/83e37259a8a4195815f07097d699762f3496bc4a37792463d7afacc801362451' 
but new value is 
'/Users/simon/.local/share/alire/builds/gnatcoll_iconv_24.0.0_e90c5b4d/a7288f541c5173a48e4c7f07645bb184d59aeda3343cdf2e9b0cc60fda0e7154'
make: *** [all] Error 1
ERROR: Command ["make", "VERSION=", "check"] exited with code 2

The build directory gnatcoll_iconv_24.0.0_e90c5b4d contains 21 directories, all created since I deleted the parent, including a7288f5 but not including 83e3725.

[reznikmm]

Hi @simonjwright !
Thank you for trying our new build script.
Did you run

alr settings --global --set dependencies.shared false

?

Can you remove (or temporary move/rename) /Users/simon/.local/share/alire/builds and /Users/simon/.local/share/alire/releases?

[simonjwright]

I didn’t spot the --set dependencies.shared false.
I’ve done both of your suggestions, and now have different failures.

Note: Running pre-build actions for libadalang=24.0.0...
[...]
++ MYPYPATH=/Users/simon/Developer/ada_language_server/subprojects/langkit_support/contrib/python/build/python:/Users/simon/Developer/ada_language_server/subprojects/langkit_support/contrib/lkt/build/python:
++ export MYPYPATH
+ pip install -r REQUIREMENTS.dev
ERROR: Could not open requirements file: [Errno 2] No such file or directory: 'REQUIREMENTS.dev'
[...]
+ python manage.py generate
__init__.py:374: error: dlopen(liblktlang.dylib, 0x0006): Library not loaded: @rpath/libgnatcoll_iconv.dylib
      Referenced from: <7CA777B1-072F-3B8C-9FAD-29608EE539A7> /Users/simon/Developer/ada_language_server/subprojects/langkit_support/contrib/lkt/build/lib/relocatable/dev/liblktlang.dylib
      Reason: tried: '/Users/simon/Developer/ada_language_server/subprojects/langkit_support/contrib/python/build/lib/relocatable/dev/libgnatcoll_iconv.dylib' (no such file),
[... etc etc]

Now, I have

venv) ramoth:ada_language_server simon$ find . -name libgnatcoll_iconv.dylib
./alire/cache/dependencies/gnatcoll_iconv_24.0.0_e90c5b4d/iconv/lib/relocatable/libgnatcoll_iconv.dylib

and I have 2 similar references in the [etc etc] above,

@executable_path/../../../../../../../..//alire/cache/dependencies/gnatcoll_iconv_24.0.0_e90c5b4d/iconv/lib/relocatable/libgnatcoll_iconv.dylib
@executable_path/../../../../../../../..//alire/cache/dependencies/gnatcoll_iconv_24.0.0_e90c5b4d/iconv/lib/relocatable/libgnatcoll_iconv.dylib

(in fact they’re the same).
Now, that should have worked if @executable_path is the directory in which the loading dylib is found (/Users/simon/Developer/ada_language_server/subprojects/langkit_support/contrib/lkt/build/lib/relocatable/dev/liblktlang.dylib), disregarding any possible effect of the //, but the library’s envoked via dlopen(), so what’s @executable_path?

I’m wondering what’s different about how I build libadalang in the compiler packages I distribute :-(

[reznikmm]

I guess this is because libadalang team changes something in the build procedure. I suggest you to build ALS 25.0.20240915 until we fix our script. To do this, create deps.txt file before running build_als.sh:

cd ada_language_server
git checkout 25.0.20240915
git show 25.0.20240915 |grep '^[a-zA-Z-]*=' > deps.txt
python -m venv venv
source venv/bin/activate
./scripts/build_als.sh

[simonjwright]

I’m still pursuing this, with many difficulties with the Alire compiler download vs. my local build, and gprconfig/linker.xml using @executable_path vs. @loader_path (that seems to have been a red herring).

Now using my local compiler and 25.0.20241014 with your suggestion for deps.txt; liblktlang.dylib builds OK, but

[...]
lal_refactor.ads:65:66: error: possible interpretation at laltools-common.ads:59
lal_refactor.ads:65:66: error: possible interpretation at langkit_support-slocs.ads:90
lal_refactor.ads:65:66: error: ambiguous expression (cannot resolve "<")
lal_refactor.ads:65:66: error: possible interpretation at laltools-common.ads:59
lal_refactor.ads:65:66: error: possible interpretation at langkit_support-slocs.ads:90
lal_refactor.ads:65:66: error: ambiguous expression (cannot resolve "<")
lal_refactor.ads:65:66: error: possible interpretation at laltools-common.ads:59
lal_refactor.ads:65:66: error: possible interpretation at langkit_support-slocs.ads:90
lal_refactor.ads:65:66: error: ambiguous expression (cannot resolve "<")
lal_refactor.ads:65:66: error: possible interpretation at laltools-common.ads:59
lal_refactor.ads:65:66: error: possible interpretation at langkit_support-slocs.ads:90
lal_refactor.ads:65:66: error: ambiguous expression (cannot resolve "<")
lal_refactor.ads:65:66: error: possible interpretation at laltools-common.ads:59
lal_refactor.ads:65:66: error: possible interpretation at langkit_support-slocs.ads:90
lal_refactor.ads:65:66: error: ambiguous expression (cannot resolve "<")
lal_refactor.ads:65:66: error: possible interpretation at laltools-common.ads:59
lal_refactor.ads:65:66: error: possible interpretation at langkit_support-slocs.ads:90

   compilation of lsp-ada_driver.adb failed
   compilation of lal_refactor-subprogram_signature-change_parameters_type.adb failed
   compilation of lal_refactor-auto_import.adb failed
   compilation of lal_refactor-suppress_separate.adb failed
   compilation of lal_refactor-tools-array_aggregates_tool.adb failed
   compilation of lal_refactor-tools.adb failed

gprbuild: *** compilation phase failed
ERROR: Command ["gprbuild", "-s", "-j0", "-p", "-P", "/Users/simon/Developer/adacore/ada_language_server/gnat/lsp_server.gpr", "-XVERSION=", "-XBUILD_DATE=", "-m", "-j0"] exited with code 4