https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91084
--- Comment #3 from Thomas Koenig <tkoenig at gcc dot gnu.org> --- ~/trunk $ svn diff contrib/ Index: contrib/download_prerequisites =================================================================== --- contrib/download_prerequisites (revision 273019) +++ contrib/download_prerequisites (working copy) @@ -50,6 +50,9 @@ "Darwin"|"FreeBSD"|"DragonFly") chksum='shasum -a 512 --check' ;; + "OpenBSD") + chksum="sha512 -c" + ;; *) chksum='sha512sum -c' ;; ~/trunk $ contrib/download_prerequisites (SHA512) gmp-6.1.0.tar.bz2: OK (SHA512) mpfr-3.1.4.tar.bz2: OK (SHA512) mpc-1.0.3.tar.gz: OK (SHA512) isl-0.18.tar.bz2: OK tar: input compressed with bzip2; use the -j option to decompress it error: Cannot extract package from gmp-6.1.0.tar.bz2 *sigh*