(autotools) Generating dry-run is very slow (due to run configure for a hundred times)

[myocytebd]

extension version: 0.12 (preview) & 0.11 (stable)

Generating dry-run takes 8 minutes.

Load configuration from cache elapsed time: 0.013
Generating in the background a new configuration cache with command: 'make -f /home/ulp/source/game/civctp2/civctp2/GNUmakefile --dry-run --always-make --keep-going --print-directory'
Writing the dry-run output: /home/ulp/.config/Code/User/workspaceStorage/f0df8ce77dab6f127b0edf39a17a7c1f/ms-vscode.makefile-tools/dryrun.log
Dropping various extension output files at /home/ulp/.config/Code/User/workspaceStorage/f0df8ce77dab6f127b0edf39a17a7c1f/ms-vscode.makefile-tools
Configure on open: true
Deduced command 'make -f /home/ulp/source/game/civctp2/civctp2/GNUmakefile' for configuration "Default"
Generating dry-run elapsed time: 487.904

Looking at dryrun.log, make ran am--refresh (and thus root configure) for about 80 times; configure ran 117 times (root + subdir).
A normal re-configure should run configure 3 times (root + subdir).

Manual run make -f /home/ulp/source/game/civctp2/civctp2/GNUmakefile --dry-run --always-make --keep-going --print-directory can confirm this behavior. I don't know why it was able to end after 117 times (instead of stuck forever).

dryrun.log

It should be reproducible with: https://github.com/civctp2/civctp2
My fork is sort of different, but the autotools mess should be similar.

# assume debian/ubuntu
sudo apt install libsdl2-dev libsdl2-mixer-dev libsdl2-image-dev libtiff-dev libavcodec-dev libavformat-dev libswscale-dev byacc flex
./autogen.sh
./configure
# run makefile-tools configure

If 1st run does not reproduce, try re-configure & make.

[Yingzi1234]

@myocytebd We can't reproduce your issue on Linux platform, and we'd like to reconfirm with you the steps for reproduction.

1. Install Docker container
2. Run code : sudo apt install libsdl2-dev libsdl2-mixer-dev libsdl2-image-dev libtiff-dev libavcodec-dev libavformat-dev libswscale-dev byacc flex
3. clone git repo: https://github.com/civctp2/civctp2.git
4. Run the below code:

cd civctp2
./autogen.sh
./configure

5. Check the dry run log