Fixed the include paths. Thank you @richard.barton.arm!

On a clean tree, with the attached patch, I get:

[ 90%] Built target f18
[ 90%] Generating /__fortran_builtins.mod
Enter Fortran source
Use EOF character (^D) to end file

On a clean build, with:

Actually, I cannot find a way to make it work with target_include_directories on a clean build tree.

Followed @DavidTruby's recommendation on how include directories are set by CMake.

@DavidTruby so, how about replacing:

Typo in a comment.

Added include ${CMAKE_CURRENT_BINARY_DIR}, as suggested by @isuruf. I tested it on a clean tree, it seems to work.

yes ;)

Outch, sorry :(
I create my patches with git diff....

I generated the diff again on a clean clone. I don't know why but my CMakeList.txt was wrong even after a git stash. Sorry about that, I hope it should be fine now.

Updated my local clone, fixed the conflicts and re-generated the diff.

No, I don't ;)

Thank you @tskeith for the tip on the tests!

All the comments should be addressed:

• renamed the test for pre-processor macros compiler_defined_macros.F90
• removed __flang_version__ (in f18.cpp and in the tests)
• use %f18 -E in the pre-processor test in order to avoid a full compilation

Some tests for the -v flag and associated macros.

I am writing the tests.

Use CMAKE_CURRENT_BINARY_DIR as the target directory of the geneated .h file, as suggested by @isuruf

Here is a new version with, as suggested by @richard.barton.arm:

• removed __F18*
• added __flang*

I have made the modifications suggested by @richard.barton.arm, but then, CMake does not compile anymore because it relies on __FLANG, __FLANG_MAJOR__, __FLANG_MINOR__ and __FLANG_PATCHLEVEL__.

clang-formated the source code, since I have been told about issues with whitespaces.

@AlexisPerry is right, I removed the vector relocatable.

Replied comment from @DavidTruby.

Let cmake grab the version numbers.

Fixed an error in my reply

Replied inline comment from @klausler

Answered some inline comments.

Applied suggestions from Alexis.