Fix embedding: NoRuntime atexit guard + redirectable cling::outs()#564
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0xeb wants to merge 1 commit intoroot-project:masterfrom
Open
Fix embedding: NoRuntime atexit guard + redirectable cling::outs()#5640xeb wants to merge 1 commit intoroot-project:masterfrom
0xeb wants to merge 1 commit intoroot-project:masterfrom
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Two fixes for embedding cling in other applications: 1. Guard atexit interception with NoRuntime check: PCH files generated with -noruntime included atexit declarations, causing redefinition errors when consumer interpreters loaded the PCH. The guard matches the existing pattern used for gCling/RuntimeUniverse preamble. 2. Make cling::outs() redirectable: adds setOuts(raw_ostream*) API so embedders can capture or redirect cling's output stream. Pass nullptr to restore the default (std::cout wrapper).
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Summary
Two fixes for embedding cling in other applications:
Guard atexit interception with
NoRuntimecheck: PCH files generated with-noruntimeincluded atexit declarations, causing redefinition errors when consumer interpreters loaded the PCH. The guard matches the existing pattern used forgCling/RuntimeUniversepreamble.Make
cling::outs()redirectable: AddssetOuts(raw_ostream*)API so embedders can capture or redirect cling's output stream. Passnullptrto restore the default (std::coutwrapper).Test plan
-noruntimeworks cleanly with the atexit guardsetOuts()verified in embedding test suite