Use the most recent versions in ConanCenter.
* Due to a bug in Clang 16, you may get a compile error:
"call to 'async_teardown' is ambiguous"
* A compiler flag workaround is documented in `BUILD.md`.
* At this time, building this with gcc 13 may require editing some files
in `.conan/data`
* A patch to support gcc13 may be added in a later PR.
---------
Co-authored-by: Scott Schurr <scott@ripple.com>
SOCI is the C++ database access library. The SOCI recipe was updated in
Conan Center Index (CCI), and it breaks for our choice of options. This
breakage occurs when you build with a fresh Conan cache (e.g. when you
submit a PR, or delete `~/.conan/data`).
* Add a custom Conan recipe for SOCI v4.0.3
* Update dependency building to handle exporting and installing Snappy
and SOCI
* Fix workflows to use custom SOCI recipe
* Update BUILD.md to include instruction for exporting the SOCI Conan
recipe:
* `conan export external/soci soci/4.0.3@`
This solution has been verified on Ubuntu 20.04 and macOS.
Context:
* There is a compiler error that the `sqlite3.h` header is not available
when building soci.
* When package B depends on package A, it finds the pieces it needs by
importing the Package Configuration File (PCF) that Conan generates
for package A.
* Read the CMake written by package B to check that it is importing
the PCF correctly and linking its exports correctly.
* Since this can be difficult, it is often more efficient to check
https://github.com/conan-io/conan-center-index/issues for package B
to see if anyone else has seen a similar problem.
* One of the issues points to a problem area in soci's CMake. To
confirm the diagnosis, review soci's CMake (after any patches are
applied) in the Conan build directory `build/$buildId/src/`.
* Review the Conan-generated PCF in
`build/$buildId/build/$buildType/generators/`.
* In this case, the problem was likely (re)introduced by
https://github.com/conan-io/conan-center-index/pull/17026
* If there is a problem in the source or in the Conan recipe, the
fastest fix is to copy the recipe and either:
* Add a source patch to fix any problems in the source.
* Change the recipe to fix any problems in the recipe.
* In this case, this can be done by finding soci's Conan recipe at
https://github.com/conan-io/conan-center-index/tree/master/recipes/soci
and then copying the `all` directory as `external/$packageName` in our
project. Then, make any changes.
* Test packages can be removed from the recipe folder as they are not
needed.
* If adding a patch in the `patches` directory, add a description for
it to `conandata.yml`.
* Since `conanfile.py` has no `version` property on the recipe class,
builders need to pass a version on the command line (like they do
for our `snappy` recipe).
* Add an example command to `BUILD.md`.
Future work: It may make sense to refer to recipes by revision, by
checking in a lockfile.
Newer compilers, such as Apple Clang 15.0, have removed `std::result_of`
as part of C++20. The build instructions provided a fix for this (by
adding a preprocessor definition), but the fix was broken.
This fixes the fix by:
* Adding the `conf` prefix for tool configurations (which had been
forgotten).
* Passing `extra_b2_flags` to `boost` package to fix its build.
* Define `BOOST_ASIO_HAS_STD_INVOKE_RESULT` in order to build boost
1.77 with a newer compiler.
* Remove obsolete build instructions.
* By using Conan, builders can choose which dependencies specifically to
build and link as shared objects.
* Refactor the build instructions based on the plan in #4433.
- Copies the recipe for Snappy from Conan Center, but removes three
lines that explicitly link the standard library, which prevents
builders from statically linking it.
- Removes the recipe for RocksDB now that an official recipe for version
6.27.3 is in Conan Center.
Developers will likely need to remove cached versions of both RocksDB
and Snappy:
```
conan remove -f rocksdb
conan remove -f snappy
```
---------
Co-authored-by: John Freeman <jfreeman08@gmail.com>
Introduces a conanfile.py (and a Conan recipe for RocksDB) to enable building the package with Conan, choosing more recent default versions of dependencies. It removes almost all of the CMake build files related to dependencies, and the configurations for Travis CI and GitLab CI. A new set of cross-platform build instructions are written in BUILD.md.
Includes example GitHub Actions workflow for each of Linux, macOS, Windows.
* Test on macos-12
We use the <concepts> library which was not added to Apple Clang until
version 13.1.6. The default Clang on macos-11 (the sometimes current
version of macos-latest) is 13.0.0, and the default Clang on macos-12 is
14.0.0.
Closes#4223.
