Solus Linux can't build from source

[maksakovaa]

Hello! I've getting issues with building from scratch.
First problem in some cmake files where set cmake minimum required version is lower than 3.5.0, after change it to 3.5 i'm stack on
make libappimage libappimageupdate libappimageupdate-qt
step from build.md with this message:

[ 0%] Built target libappimage_hashlib
[ 0%] Built target xz-EXTERNAL
[ 0%] Performing build step for 'squashfuse-EXTERNAL'
CC libsquashfuse_ll_la-ll.lo
ll.c: In function 'fusefs_main':
ll.c:518:11: error: implicit declaration of function 'rmdir' [-Wimplicit-function-declaration]
518 | rmdir (mountpoint);
| ^~~~~
make[5]: *** [Makefile:862: libsquashfuse_ll_la-ll.lo] Ошибка 1
make[4]: *** [Makefile:531: all] Ошибка 2
make[3]: *** [lib/libappimage/CMakeFiles/squashfuse-EXTERNAL.dir/build.make:86: lib/libappimage/squashfuse-EXTERNAL-prefix/src/squashfuse-EXTERNAL-stamp/squashfuse-EXTERNAL-build] Ошибка 2
make[2]: *** [CMakeFiles/Makefile2:1461: lib/libappimage/CMakeFiles/squashfuse-EXTERNAL.dir/all] Ошибка 2
make[1]: *** [CMakeFiles/Makefile2:2528: lib/libappimage/src/libappimage/CMakeFiles/libappimage.dir/rule] Ошибка 2
make: *** [Makefile:722: libappimage] Ошибка 2
Any ideas why it can happen?

[maksakovaa]

Fixed: missing include header for rmdir in file:
AppImageLauncher/build/lib/libappimage/squashfuse-EXTERNAL-prefix/src/squashfuse-EXTERNAL/ll.h
add #include <unistd.h>

[maksakovaa]

Now problem with outdated link to boost 1.69 sources in scripts, downloaded it manually, then get trouble in:
missing binary operator before token "(" in AppImageLauncher/build/lib/libappimage/boost-EXTERNAL-prefix/src/boost-EXTERNAL/boost/thread/pthread/thread_data.hpp. (line 60).
fixed changing

#if PTHREAD_STACK_MIN > 0
          if (size<PTHREAD_STACK_MIN) size=PTHREAD_STACK_MIN;
#endif

to

#ifdef PTHREAD_STACK_MIN > 0
          if (size<PTHREAD_STACK_MIN) size=PTHREAD_STACK_MIN;
#endif

[maksakovaa]

Also have problem with missed header cstdint in /home/aleksandr/Загрузки/AppImageLauncher/lib/libappimage/src/libappimage/utils/hashlib.h.