/usr/bin/siril defines the reallocarray symbol, which is also provided by glibc. Please use the function from glibc, rather than supplying your own. A simple recompile against current rawhide might be sufficient, depending on the autoconf logic in the package.
This bug appears to have been reported against 'rawhide' during the Fedora 27 development cycle. Changing version to '27'.
siril-0.9.7-1.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2017-bcf8fcc69f
siril-0.9.7-1.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2017-3b3528a59b
siril-0.9.7-1.fc25 has been submitted as an update to Fedora 25. https://bodhi.fedoraproject.org/updates/FEDORA-2017-a25bb3fe3c
siril-0.9.7-1.fc27 has been pushed to the Fedora 27 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-bcf8fcc69f
siril-0.9.7-1.fc26 has been pushed to the Fedora 26 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-3b3528a59b
siril-0.9.7-1.fc25 has been pushed to the Fedora 25 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-a25bb3fe3c
siril-0.9.7-1.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.
siril-0.9.7-1.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.
siril-0.9.7-1.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.