According to ARMClang documentation 6.20, the patch version number
should not include the last two digits of `__ARMCOMPILER_VERSION`,
which are reserved for internal use by ARM.
Revise the changes from commit fc7dcc6a24 (FindProtobuf: Support new
version number scheme, 2023-06-19, v3.27.0-rc3~2^2). Changing the
content of `Protobuf_VERSION` to exclude the major version of the library
might break code as it can't be used to detect breaking changes in the
library any more.
However, protoc v22 and up don't print the major version any more, so we
need to compare the against a truncated version number, too.
These distros package the hip-lang package under `lib64`, so search it
too. This is similar to commit bae57dc281 (HIP: Fix search for hip-lang
CMake package on multiarch distros, 2023-05-31, v3.27.0-rc1~28^2).
Fixes: #25050
Note, the argument `DESCRIPTORS` is not documented as upstream doesn't
provide this argument and code might break when switching to upstream
later.
Instead of the argument `DESCRIPTORS`
`PROTOC_OPTIONS "--descriptor_set_out=NAME.desc"` can be used.
Argument description has been copied from [1].
Fixes: #23037
[1] 8ec0295ad7/docs/cmake_protobuf_generate.md
`ExternalProject_Add` treats all keyword arguments as multi-valued.
FetchContent re-orders some keyword arguments w.r.t. unparsed arguments.
Add an internal keyword argument to separate the keyword values from
following unparsed arguments.
This was exposed by commit 550f63447d (ExternalProject/FetchContent:
Support relative remote URLs, 2023-04-21, v3.27.0-rc1~156^2) by adding
`GIT_REPOSITORY` to the set of re-ordered keyword arguments. This
caused its value to absorb following unparsed arguments.
Fixes: #25029
The effect of that hint is to set a CURL_STATICLIB compile definition,
and to auxiliary system windows libraries for MSVC builds.
GDAL-Issue: https://github.com/OSGeo/gdal/issues/7955
Restore definition of `ANDROID` and `UNIX` when `CMAKE_SYSTEM_VERSION`
is `1`. This was broken by commit 1373373823 (enable_language:
Establish target platform identification variables earlier, 2023-06-06,
v3.27.0-rc1~3^2~1).
Fixes: #25004
Protobuf changed it's version number scheme with version 21. The first number
(usually the major version) is not synchronized between compiler and library
version, but the second and third number are. See
https://protobuf.dev/news/2022-05-06/ for more details.
Fixes: #24847
Since commit 03c6ebf2b5 (Modules:Check,GenerateExportHeader: include
only what's needed, 2023-03-09, v3.27.0-rc1~327^2) some existing
projects broke because they were accidentally relying on indirect
inclusion of some check modules. For now, restore the unnecessary
includes for compatibility. They can be removed with a policy later.
Fixes: #24991
Issue: #24994
Previously we added fallbacks to `llvm-{ar,strip}` on Apple hosts
in case of cross-compiling because the `APPLE` platform variable
was not set w.r.t. the target platform. The platform variable
has been fixed, so remove the fallbacks.
Issue: #23333
Set target platform identification variables like `APPLE` and `LINUX`
as soon as the target system is identified. This makes them available
during toolchain and binutils selection.
Fixes: #23333
Make `CMAKE_LIBRARY_ARCHITECTURE_REGEX` available while determining
compilers before `Platform/{kFreeBSD,GNU}` is loaded.
Follow up commit cc737ae829 (Linux: Provide multiarch library directory
regex earlier, 2023-05-31).
