Partial fix for autotools configuration after source tree reorganisation

Now "make check" also works again.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

This should fix "make" and "make training".
Signed-off-by: NStefan Weil <sw@weilnetz.de>

Fix file endings

Text files should end with a LF, but not additional empty lines.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

Fix line endings

Replace DOS line endings (CRLF) by standard (LF only).
Signed-off-by: NStefan Weil <sw@weilnetz.de>

Fix unittest (missing include path)

Add include path for api/tess_version.h.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

Revert failed attempt to support MacPort's g++

The support will require more work, and postpone for now.

Fix CID 1164613 (Uninitialized pointer field)

This involves removing some constructors without argument.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

Fix linker regression for Visual Studio

Remove 'AUTOMAKE_OPTIONS' from all Makefile.am files

Commit cb77067f changed the declaration of
null_script. An additional TESS_API is needed to satisfy the VS linker.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

 Fix two reports from Coverity Scan (Copy into fixed size buffer)

Fix wrong environment test that breaks clang++ builds.

Update .gitignore

'AM_INIT_AUTOMAKE()' in configure.ac sets options globally.

* Ignore generated version file
* Add some comments
* Add missing training executable
* Remove two CR at line endings
* Remove googletest (part of the git repository, so cannot be ignored)
* Add test related files
Signed-off-by: NStefan Weil <sw@weilnetz.de>

g++ builds require extra flags rejected by clang++. The bug is that the
flags are actually added unconditionally. This commit fixes the
condition.

See https://github.com/tesseract-ocr/tesseract/pull/1474

Using STRING removes the limitation for the filename length.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

As null_script never changes, it is not necessary to allocate it in
each class instance. Change this, too.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

training: Remove some cube relicts

Remove nullptr checks before destructor

Signed-off-by: NStefan Weil <sw@weilnetz.de>

It is not needed because delete accepts a nullptr argument.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

Support version names starting with non numeric characters

Replace NULL by nullptr

Change info message from tesstrain.sh

Fixes https://github.com/tesseract-ocr/tesseract/issues/1149 and https://github.com/tesseract-ocr/tesseract/issues/1508

Signed-off-by: NStefan Weil <sw@weilnetz.de>

Signed-off-by: NStefan Weil <sw@weilnetz.de>