What's the correct way to build ALS on Windows 10 with Alire ?

[NicoPy]

I've created a new project with alr get ada_language_server.
This created a new folder named ada_language_server_23.0.0_66f2e7fb.

alr build generates ada_language_server.exe in .obj/server folder.
alr run does nothing (except running a build). alr run ada_language_server.exe neither.

Running ada_language_server.exe manually opens an error dialog box saying that libgmp-10.dll is not found.

In the dependencies, Alire installed and compiled gnatcoll_gmp_23.0.0_57de4a1a. However, there is no libgmp-10.dll generated.

Did I miss something ?

[Fabien-Chouteau]

Hi @NicoPy, libgmp-10.dll is provided by msys2 on Windows so you have to run you executable in an msys2 mingw64 shell.
It's a big limitation of Alire on Windows at the moment, the Alire project is looking for way to improve that.

[NicoPy]

Thanks for your answer.

I didn't think about this.
So, I tried running ada_language_server.exe from Msys2. The previous error is gone but :

ada_language_server.exe exits a few seconds after launch without any message.

When running ada_language_server.exe --help I get :

$ ./ada_language_server.exe --help
Command line interface for the Ada Language Server
Usage: ada_language_server.exe [switches] [arguments]

 --tracefile=ARG Full path to a file containing traces configuration
 --language-gpr  Handle GPR language instead of Ada
 --version       Display the program version
 --help          Display this help
Segmentation fault

Looks like there is still something wrong somewhere (please note the segmentation fault).

[reznikmm]

try to export LIBRARY_TYPE=static before running alr build. This way you could avoid messing with .dll loading/searching.

[NicoPy]

I used powershell syntax : $Env:LIBRARY_TYPE='static'

Unfortunately, the build did not finished successfully :

.
.
.
Bind
   [gprbind]      lsp-ada_driver.bexch
   [Ada]          lsp-ada_driver.ali
Link
   [link]         lsp-ada_driver.adb
c:/users/nicolas/.config/alire/cache/dependencies/gnat_native_12.1.2_3126cd6f/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:/Users/Nicolas/.cache/alire/msys64/mingw64/lib/../lib\libgmp.a(lt20-get_str.o):(.text+0x2ad): undefined reference to `__stack_chk_fail'
c:/users/nicolas/.config/alire/cache/dependencies/gnat_native_12.1.2_3126cd6f/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:/Users/Nicolas/.cache/alire/msys64/mingw64/lib/../lib\libgmp.a(lt20-get_str.o):(.rdata$.refptr.__stack_chk_guard[.refptr.__stack_chk_guard]+0x0): undefined reference to `__stack_chk_guard'
c:/users/nicolas/.config/alire/cache/dependencies/gnat_native_12.1.2_3126cd6f/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:/Users/Nicolas/.cache/alire/msys64/mingw64/lib/../lib\libgmp.a(mod.o):(.text+0x10f): undefined reference to `__stack_chk_fail'
c:/users/nicolas/.config/alire/cache/dependencies/gnat_native_12.1.2_3126cd6f/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:/Users/Nicolas/.cache/alire/msys64/mingw64/lib/../lib\libgmp.a(lt31-mul.o):(.text+0x37e): undefined reference to `__stack_chk_fail'
c:/users/nicolas/.config/alire/cache/dependencies/gnat_native_12.1.2_3126cd6f/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:/Users/Nicolas/.cache/alire/msys64/mingw64/lib/../lib\libgmp.a(realloc.o):(.text+0x47): undefined reference to `__stack_chk_fail'
c:/users/nicolas/.config/alire/cache/dependencies/gnat_native_12.1.2_3126cd6f/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:/Users/Nicolas/.cache/alire/msys64/mingw64/lib/../lib\libgmp.a(lt43-set_str.o):(.text+0x2d3): undefined reference to `__stack_chk_fail'
c:/users/nicolas/.config/alire/cache/dependencies/gnat_native_12.1.2_3126cd6f/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:/Users/Nicolas/.cache/alire/msys64/mingw64/lib/../lib\libgmp.a(tdiv_q.o):(.text+0x22f): undefined reference to `__stack_chk_fail'
c:/users/nicolas/.config/alire/cache/dependencies/gnat_native_12.1.2_3126cd6f/bin/../lib/gcc/x86_64-w64-mingw32/12.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:/Users/Nicolas/.cache/alire/msys64/mingw64/lib/../lib\libgmp.a(tdiv_r.o):(.text+0x2ec): more undefined references to `__stack_chk_fail' follow
collect2.exe: error: ld returned 1 exit status
gprbuild: link of lsp-ada_driver.adb failed
gprbuild: failed command was: C:\Users\Nicolas\.config\alire\cache\dependencies\gnat_native_12.1.2_3126cd6f/bin\g++.exe lsp-ada_driver.o @C:\Users\Nicolas\AppData\Local\Temp\GNAT-TEMP-000057.TMP
ERROR: Command ["gprbuild", "-s", "-j0", "-p", "-P", "Z:\ada\alire_projects\ada_language_server_23.0.0_66f2e7fb\gnat/lsp_server.gpr"] exited with code 4
ERROR: Compilation failed.

It looks like a library is missing.

Notes :

• I did not used a very recent ALS version for the build.
• I used GNAT 12.1.2