Package: src:qtbase-opensource-src Version: 5.4.2+dfsg-8 Severity: normal Hi,
I discovered that freeciv, particularly the freeciv-qt client, fails to build from source when I enable all hardening build flags including -fPIE,-pie (position independent executable). This has never been an issue before and it seems this regression surfaced with the introduction of GCC-5. I think Qt's -reduce-relocation option reduces our ability to harden our binaries. To workaround this bug I had to change from export DEB_BUILD_MAINT_OPTIONS = hardening=+all to export DEB_BUILD_MAINT_OPTIONS = hardening=+all,-pie This appears to be not the best solution and Freeciv is not the only affected package: https://bugs.debian.org/792592 There are similar bug reports for other distributions: https://bugs.archlinux.org/task/45283 and there is also a related GCC-5 bug report https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65886 According to the changelog this regression might have been introduced on 24 July 2015 by Rohan Garg. I'm not sure about the severity but I would really like to see the old behaviour again. Regards, Markus -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 4.1.0-1-amd64 (SMP w/2 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: unable to detect
