will.anderson
8ce8656de2
El SDK CI - dev / build-and-test (pull_request) Successful in 7m33s
epm's sibling modules (registry/install/update) call functions defined in other modules and in the El runtime (config, read_installed, registry_find, manifest_deps, manifest_name, registry_latest_version, registry_token, install_vessel, installed_version) without importing them, so elc emits no C prototype for those calls. gcc<=13 treated the resulting implicit declarations as warnings; gcc>=14 and clang reject them as hard errors, which is why the "Build epm" CI step fails and blocks the whole dev/stage pipeline. Add `extern fn` forward declarations -- El's own separate-compilation mechanism -- for each cross-module callee at the top of registry/install/update. This gives elc the correct C prototype in every generated translation unit, so the calls compile cleanly and still resolve at link time. Simply suppressing -Wimplicit-function-declaration would be unsafe: an implicit int return truncates the 64-bit pointer returns of config/registry_find into a latent crash, so declaring the true signatures is the correct fix. Localized to epm; touches neither elc nor the runtime.