RFR: 8368102: Don't store macros in spec.gmk

Fri Sep 19 17:12:34 UTC 2025

We currently have three macros (as in "functions", not just simple strings) that are assigned in spec.gmk. This is in contrast with the rest of the values assigned in spec.gmk, and it is surprising and is forcing an odd syntax. Furthermore, these macros are named as constants, and not as we normally name functions/macros.

We should move them to normal .gmk code, and rename them.

The three macros are `SET_SHARED_LIBRARY_ORIGIN`, `SET_EXECUTABLE_ORIGIN` and `SET_SHARED_LIBRARY_NAME`.

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Commit messages:
 - 8368102: Don't store macros in spec.gmk

Changes: https://git.openjdk.org/jdk/pull/27394/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27394&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8368102
  Stats: 109 lines in 8 files changed: 61 ins; 40 del; 8 mod
  Patch: https://git.openjdk.org/jdk/pull/27394.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27394/head:pull/27394

PR: https://git.openjdk.org/jdk/pull/27394