Builds on modern Ubuntu

[RobertLarsen]

This makes sasquatch build on Ubuntu 22.04

[ladbsoft]

Tested and working in Ubuntu 22.10 with gcc 11.4.0.

Hopefully the owner notices and this gets merged. Thanks, mate!

[0xdead8ead]

Came here because of this error during compilation on Ubuntu 22.04:

cc -g -O2  -I. -I./LZMA/lzma465/C -I./LZMA/lzmalt -I./LZMA/lzmadaptive/C/7zip/Compress/LZMA_Lib -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_GNU_SOURCE -DCOMP_DEFAULT=\"gzip\" -Wall -Werror  -DGZIP_SUPPORT -DLZMA_SUPPORT -DXZ_SUPPORT -DLZO_SUPPORT -DXATTR_SUPPORT -DXATTR_DEFAULT   -c -o unsquashfs.o unsquashfs.c
unsquashfs.c: In function 'read_super':
unsquashfs.c:1835:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
 1835 |     if(swap)
           |     ^~
unsquashfs.c:1841:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
      |         read_fs_bytes(fd, SQUASHFS_START, sizeof(struct squashfs_super_block),
      |         ^~~~~~~~~~~~~
cc1: all warnings being treated as errors
make: *** [<builtin>: unsquashfs.o] Error 1

The above PR works for ubuntu:22.04. Thanks @RobertLarsen !!

For those waiting for this to be merged, for now you can do:

git clone https://github.com/devttys0/sasquatch
(cd sasquatch && git pull origin pull/56/head && ./build.sh)

[leoss]

This also works on Ubuntu 23.04.