The libecap build success on most arches in experimental.
pkgkde-getbuildlogs can download all build logs.
There are 19 arches logs now, I checked these logs:
cd libecap_experimental_logs
grep "^-\ (optional=templinst" * |awk -F":" {'print $2'}|sort|uniq
- (optional=templinst|arch=!powerpc
!riscv64)_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_M_constructIPcEEvT_S7_St20forward_iterator_tag@Base 1.0.1
- (optional=templinst|arch=!powerpc
!riscv64)_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_M_constructIPKcEEvT_S8_St20forward_iterator_tag@Base 1.0.1
grep "^-\ (optional=templinst" * |awk -F":" {'print $2'}|wc -l
34
That is say, these two lines are not need in these 19 arches.