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configure: improve error for ucontext coroutine backend

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Instead of using feature_not_found(), which is not a good match because
there is no "remedy" to fix the lack of makecontext(), just print a
custom error.

This happens to remove the last use of feature_not_found(), so remove
the definition and the documentation.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2022-08-19 18:40:46 +02:00
parent 45ed68a1a3
commit 7cb5844808
2 changed files with 1 additions and 15 deletions
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5
docs/devel/build-system.rst
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@ -99,11 +99,6 @@ developers in checking for system features:
Write a minimal C program main() function to the temporary file
indicated by $TMPC
``feature_not_found $NAME $REMEDY``
Print a message to stderr that the feature $NAME was not available
on the system, suggesting the user try $REMEDY to address the
problem.
``error_exit $MESSAGE $MORE...``
Print $MESSAGE to stderr, followed by $MORE... and then exit from the
configure script with non-zero status