cross-compilation broken since cf09b6742a507555bb712101aff9e919009f0683

Mon Dec 28 15:39:45 CET 2020

alsa-project/alsa-firmware issue #3 was opened from flokli:

I was excited to see c9e5b369919a956cf56d50a6f0be076e364f7820 getting merged, but realized this broke immediately afterwards in cf09b6742a507555bb712101aff9e919009f0683:

```
git bisect start
# good: [c9e5b369919a956cf56d50a6f0be076e364f7820] Get cross compilation to work
git bisect good c9e5b369919a956cf56d50a6f0be076e364f7820
# bad: [3ab9711ae106851b4185da42d5873702a3008744] Release v1.2.4
git bisect bad 3ab9711ae106851b4185da42d5873702a3008744
# bad: [41008541de9bd2b184058ec2204f172e3c9f64fe] introduce Makefile.hotplug
git bisect bad 41008541de9bd2b184058ec2204f172e3c9f64fe
# bad: [546aa5b30694889b00b424a6e9de2c5f34ce5da2] introduce Makefile.fw_writer
git bisect bad 546aa5b30694889b00b424a6e9de2c5f34ce5da2
# bad: [cf09b6742a507555bb712101aff9e919009f0683] upgrade ax_prog_cc_for_build.m4 to serial 18
git bisect bad cf09b6742a507555bb712101aff9e919009f0683
# first bad commit: [cf09b6742a507555bb712101aff9e919009f0683] upgrade ax_prog_cc_for_build.m4 to serial 18
```

cc @perexg

Issue URL     : https://github.com/alsa-project/alsa-firmware/issues/3
Repository URL: https://github.com/alsa-project/alsa-firmware