This is an auto-filed bug because dev-lang/fpc does not respect CFLAGS/LDFLAGS. The issue was originally discovered on amd64, but it may be reproducible on other arches as well. If you think that a different summary clarifies the issue better, feel free to change it. Attached build log and emerge --info. NOTE: To reproduce this issue you may want to add "-frecord-gcc-switches" to CFLAGS/CXXFLAGS/FFLAGS/FCFLAGS and LDFLAGS="${LDFLAGS} -Wl,--defsym=__gentoo_check_ldflags__=0". If this is not something about c/c++ see this bug as an hint to hide the QA warning (with QA_FLAGS_IGNORED) where is not possible to respect CFLAGS/LDFLAGS.
Created attachment 643186 [details] build.log build log and emerge --info
It seems that the QA_FLAGS_IGNORED has been set correctly in the current version of fpc in portage (dev-lang/fpc-3.2.2), so in my opinion this bug can be closed.