[vcpkg] Reset to known-good build scripts

[strega-nil]

Should fix #10847.

[strega-nil]

@timautry @Farwaykorse could you build these and see if these actually do fix your issue?

[ghost]

I replaced the

• toolsrc/CMakeLists.txt,

• scripts/bootstrap.sh with the ones here

• and renamed toolsrc/cmake/utilities.cmake to utilities.cmake.txt

• reran the ./bootstrap-vcpkg.sh with the following errors about VCPKG_DISABLE_METRICS in the attached:
  bootstrap-vcpkg.log
  CMakeError.log
  CMakeOutput.log

• I can help as I am able off and on as I may need to rest due to my disability or do other household chores, etc.

[strega-nil]

@timautry this should actually work -.- I'm sorry, thanks for being my test case

[ghost]

The latest change works... Yeah :)
bootstrap-vcpkg.log

[Farwaykorse]

Cloned in a new directory; checked-out fix-bootstrap; ran ./bootstrap-vcpkg.sh

54ec9b2 builds and links.

[strega-nil]

@Farwaykorse, @timautry can you also try the following?

git clone https://github.com/strega-nil/vcpkg
cd vcpkg
git checkout new-buildsystem
./boostrap-vcpkg.sh

?

[Farwaykorse]

I noticed the current HEAD of vcpkg CMake output Line 12

-- Detecting how to use the C++ filesystem library - <experimental/filesystem>

But when I run the functions in an other CMake project it shows:

-- Detecting how to use the C++ filesystem library - <filesystem>

So I tried changing the CMake version in the vcpkgTools.xml, to CMake v3.17.1.
This worked!

Changing it back to v3.14.0, again resulted in it trying to use <experimental/filesystem> and a failed build.

This seems like a CMake bug.

[Farwaykorse]

@Farwaykorse, @timautry can you also try the following?

git clone https://github.com/strega-nil/vcpkg
cd vcpkg
git checkout new-buildsystem
./boostrap-vcpkg.sh

?

ffac377 builds and links

[ghost]

I created new instance vcpkg.devl from above instructions and it compiled and linked fine.
bootstrap-vcpkg-new-buildsystem.log

[Farwaykorse]

The detection to use <filesystem> works properly for CMake 3.15.0 and newer.
Since there is already a PR to update CMake to 3.17.1 #10767 this should be fixed soon.

@timautry can you try if it works for your issue too?

git clone https://github.com/Farwaykorse/vcpkg
cd vcpkg
git checkout update_cmake_linux
./boostrap-vcpkg.sh

[strega-nil]

@Farwaykorse I think the issue with openSUSE is unrelated -- it looks like the issue was attempting to link with a G++ that was different from the compiler.

[ghost]

@Farwaykorse - I still get a failed to link using the version you have provided using
bootstrap-vcpkg.cmake.test.log
cmake 3.17.1
attached

[strega-nil]

Superseded by #10867