Several non-descript cases of "core::Error" while compiling with GCC 10.3 in MSYS2

[LigH-de]

Environment

• Tesseract Version: HEAD
• Commit Number: 5.0.0-beta-20210916-63-g0d57
• Platform: media-autobuild suite = MSYS2 + MinGW64 + GCC 10.3 Win32 cross-compiler (ccache enabled) on Windows 7 SP1 x64 and Windows 10

Current Behavior:

Several non-descript cases of "core::Error" while compiling with GCC 10.3:

...
  CXX      src/dict/libtesseract_la-dawg_cache.lo
terminate called after throwing an instance of 'core::Error'
terminate called recursively
make[1]: *** [Makefile:5779: src/cutil/libtesseract_la-oldlist.lo] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory '/build/tesseract-git/build-32bit'
make: *** [Makefile:8149: all-recursive] Error 1
Making all in .
make[1]: Entering directory '/build/tesseract-git/build-32bit'
  CXX      src/cutil/libtesseract_la-oldlist.lo
  CXX      src/dict/libtesseract_la-dict.lo
  CXX      src/dict/libtesseract_la-stopper.lo
  CXX      src/dict/libtesseract_la-trie.lo
terminate called after throwing an instance of 'core::Error'
terminate called recursively
make[1]: *** [Makefile:5821: src/dict/libtesseract_la-trie.lo] Error 1
make[1]: Leaving directory '/build/tesseract-git/build-32bit'
make: *** [Makefile:8149: all-recursive] Error 1

See more verbose log files in logs.zip collected by media-autobuild_suite

I am a bit confused why it does not contain verbose C/C++ compiler errors with references to source lines. 🤔

Expected Behavior:

successful compilation

Suggested Fix:

none; I am not a C/C++ developer

[stweil]

I am a bit confused why it does not contain verbose C/C++ compiler errors with references to source lines.

The reason is simple: it's not caused by the Tesseract source code, but a problem of the compiler, either not enough RAM or a compiler bug.

[stweil]

It looks like you used a parallel build. I suggest to try a single threaded build.

[LigH-de]

So I did, but it still produced such an error.

logs.zip

[LigH-de]

Testing on a second PC. Here, after a lot of updates, same error for cargo building a rust project, and ccache seems to crash with OS error 3. I guess I have to purge the whole msys64 tree and reinstall it. Will refresh both PCs and tell later.

[stweil]

Disabling the ccache might also help.

[LigH-de]

But that may hurt compiling a few dozen of other projects ffmpeg is made of.

Furthermore, it has never been an issue during the last few years.

[zdenop]

But none of this is tesseract problem. Problem is in the tools (compiler and build system) you chose.

[LigH-de]

OK. A completely new MSYS2 in the suite fails as well. I'll see if they have an idea.

---

PS: Reason seems to be msys2/MINGW-packages#9771