* ensure reproducible builds
* improve patch
* improve patch
* Narrow reproducibility scope to legacy and DEB
Keep the verified Linux legacy Makefile and DEB reproducibility paths, but remove the unverified RPM/openSUSE timestamp changes and AppImage reproducibility behavior from this PR.
The CPack mtime/mode clamp is now installed only for Debian/Ubuntu packaging, matching the scope covered by the provided reproducibility logs.
Retain umask 022 in the RPM/openSUSE wrappers so staged package permissions do not depend on a restrictive caller umask.
* Harden reproducible build cleanup
Validate SOURCE_DATE_EPOCH before interpolating it into Make, CMake or shell packaging paths.
Refuse live DESTDIR values in the CPack mtime clamp and pass makeself options through normal argv construction instead of eval.
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Co-authored-by: curious-rabbit <curious-rabbit@local>
Co-authored-by: Mounir IDRASSI <mounir.idrassi@amcrypto.jp>
curious-rabbit