aws-c-common: add AWS_COMMON_USE_IMPORT_EXPORT interface definition if shared

[SpaceIm]

see https://github.com/awslabs/aws-c-common/blob/v0.8.17/include/aws/common/exports.h

---

• I've read the contributing guidelines.
• I've used a recent Conan client version close to the currently deployed.
• I've tried at least one configuration locally with the conan-center hook activated.

[conan-center-bot]

Conan v1 pipeline ✔️

All green in build 4 (e8a1e1c5d6af167bd4edc984f62953d1174c872f):

• aws-c-common/0.7.0@:
  All packages built successfully! (All logs)

• aws-c-common/0.8.2@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.9@:
  All packages built successfully! (All logs)

• aws-c-common/0.7.2@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.20@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.11@:
  All packages built successfully! (All logs)

• aws-c-common/0.7.4@:
  All packages built successfully! (All logs)

• aws-c-common/0.7.3@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.7@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.14@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.15@:
  All packages built successfully! (All logs)

• aws-c-common/0.4.25@:
  All packages built successfully! (All logs)

• aws-c-common/0.7.1@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.17@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.8@:
  All packages built successfully! (All logs)

• aws-c-common/0.7.5@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.19@:
  All packages built successfully! (All logs)

---

Conan v2 pipeline ✔️

Note: Conan v2 builds may be required once they are on the v2 ready list

All green in build 3 (e8a1e1c5d6af167bd4edc984f62953d1174c872f):

• aws-c-common/0.7.4@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.19@:
  All packages built successfully! (All logs)

• aws-c-common/0.7.2@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.11@:
  All packages built successfully! (All logs)

• aws-c-common/0.8.2@:
  All packages built successfully! (All logs)

• aws-c-common/0.7.5@:
  All packages built successfully! (All logs)

• aws-c-common/0.7.3@:
  All packages built successfully! (All logs)

• aws-c-common/0.7.1@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.7@:
  All packages built successfully! (All logs)

• aws-c-common/0.7.0@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.14@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.15@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.17@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.9@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.8@:
  All packages built successfully! (All logs)

• aws-c-common/0.6.20@:
  All packages built successfully! (All logs)

• aws-c-common/0.4.25@:
  All packages built successfully! (All logs)

[cardinotGV]

This is breaking most of the other aws-* as they look for aws-c-common::aws-c-common-lib

(msvc)

[prince-chrismc]

Please refer to the "consuming recipes" docs for how to enable revisions and store your own copies of recipes
https://github.com/conan-io/conan-center-index/blob/master/docs/consuming_recipes.md

In ConanCenter we can only do one at a time :) so it will take a while for the rest of the AWS family to get updated

[SpaceIm]

Yes sorry for that. Maybe it could have been done in 2 steps to avoid breakage but it would have been super tedious (keep component and not define AWS for cmake_find_package & cmake_find_package_multi in each aws recipe, and do not depend anymore on component explicitly, then few weeks later remove component in each recipe). These recipes could be updated very quickly, I've opened PRs for each aws recipe 2 weeks ago, they build fine locally after updates on macOS, Linux & Windows. They are just waiting for reviewers.

[cardinotGV]

No problem, thanks @SpaceIm and @prince-chrismc. I'm sticking to the previous revisions while it's in progress