Merge pull request #107 from kwvg/bump_1.3.5 #411

Job	Run time
macos-latest, cmake, gcc, easy backend	43s
macos-latest, cmake, gcc, gmp backend	1m 7s
macos-latest, cmake, clang, easy backend	31s
macos-latest, cmake, clang, gmp backend	32s
macos-latest, autotools, gcc, easy backend	1m 0s
macos-latest, autotools, gcc, gmp backend	1m 47s
macos-latest, autotools, clang, easy backend	58s
macos-latest, autotools, clang, gmp backend	58s
ubuntu-20.04, cmake, gcc, easy backend	1m 29s
ubuntu-20.04, cmake, gcc, gmp backend	1m 24s
ubuntu-20.04, cmake, clang, easy backend	1m 41s
ubuntu-20.04, cmake, clang, gmp backend	1m 23s
ubuntu-20.04, autotools, gcc, easy backend	2m 10s
ubuntu-20.04, autotools, gcc, gmp backend	2m 6s
ubuntu-20.04, autotools, clang, easy backend	2m 17s
ubuntu-20.04, autotools, clang, gmp backend	2m 4s
	22m 10s

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