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H A D | configure | 8bbe05d77360b73c1834808023016a778ccf55ca Mon Sep 25 10:41:03 CDT 2017 Ian Jackson <ian.jackson@eu.citrix.com> configure: do_compiler: Dump some extra info under bash
This makes it much easier to find a particular thing in config.log.
We have to use the ${BASH_LINENO[*]} syntax which is a syntax error in other shells, so test what shell we are running and use eval.
The extra output is only printed if configure is run with bash. On systems where /bin/sh is not bash, it is necessary to say bash ./configure to get the extra debug info in the log.
Suggested-by: Eric Blake <eblake@redhat.com> Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com> CC: Kent R. Spillner <kspillner@acm.org> CC: Janosch Frank <frankja@linux.vnet.ibm.com> CC: Thomas Huth <thuth@redhat.com> CC: Peter Maydell <peter.maydell@linaro.org> CC: Paolo Bonzini <pbonzini@redhat.com> Tested-by: Thomas Huth <thuth@redhat.com>
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