Meta: Pass compiler's builtin includes to jakt too

[alimpfard]

This is not an issue with clang, but when gcc is used as the c++ compiler, jakt can't know its builtin include paths; so come up with a nice and hacky cmake blob to fix the problem.

Warning: hacky!

[BuggieBot]

Hello!

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[ADKaster]

I mean, this works. But would it be easier to understand if it was a python script instead?

I'm scared of regexes :)

Also why are there two commands? Surely This is good enough?

$ ./Toolchain/Local/aarch64/bin/aarch64-pc-serenity-gcc  -xc++ -E -Wp,-v - < /dev/null
ignoring nonexistent directory "/Users/andrew/Source/serenity/Toolchain/../Build/aarch64/Root/usr/local/include"
#include "..." search starts here:
#include <...> search starts here:
 /Users/andrew/Source/serenity/Toolchain/Local/aarch64/lib/gcc/aarch64-pc-serenity/13.2.0/../../../../aarch64-pc-serenity/include/c++/13.2.0
 /Users/andrew/Source/serenity/Toolchain/Local/aarch64/lib/gcc/aarch64-pc-serenity/13.2.0/../../../../aarch64-pc-serenity/include/c++/13.2.0/aarch64-pc-serenity
 /Users/andrew/Source/serenity/Toolchain/Local/aarch64/lib/gcc/aarch64-pc-serenity/13.2.0/../../../../aarch64-pc-serenity/include/c++/13.2.0/backward
 /Users/andrew/Source/serenity/Toolchain/Local/aarch64/lib/gcc/aarch64-pc-serenity/13.2.0/include
 /Users/andrew/Source/serenity/Toolchain/Local/aarch64/lib/gcc/aarch64-pc-serenity/13.2.0/include-fixed
 /Users/andrew/Source/serenity/Toolchain/Local/aarch64/lib/gcc/aarch64-pc-serenity/13.2.0/../../../../aarch64-pc-serenity/include
 /Users/andrew/Source/serenity/Toolchain/../Build/aarch64/Root/usr/include
End of search list.
# 0 "<stdin>"
# 0 "<built-in>"
# 0 "<command-line>"
# 1 "<stdin>"

got_dotdotdot = False
paths = []
for path.strip() in lines:
    if not got_dotdotdot:
        if path == "#include "..." search starts here:"
            got_dotdotdot = True
         continue
    if path ==  "#include <...> search starts here:"
        continue
    if path == "End of search list."
        break    
    paths.append(pathlib.Path(path.split(" ")[0]).resolve())

?