Hi,
A suspicious thing is that while the header talks about EasyBuild 3.8.1, the patch file it's checksumming is in a directory called 3.2.1. In the 3.8.1 easyconfigs tree, the patch file has the correct checksum. Maybe look at your EasyBuild configuration or show it here (eb --show-config)? // Lars ________________________________ == 2019-03-13 05:14:59,019 easyblock.py:273 INFO This is EasyBuild 3.8.1 (framework: 3.8.1, easyblocks: 3.8.1) on host sny02.sunya.rajagiritech.edu.in<http://sny02.sunya.rajagiritech.edu.in>. == 2019-03-13 05:14:59,020 easyblock.py:279 INFO This is easyblock EB_GCC from module easybuild.easyblocks.gcc (/sNow/easybuild/centos/7.3.1611/Broadwell/software/EasyBuild/3.8.1/lib/python2.7/site-packages/easybuild_easyblocks-3.8.1-py2.7.egg/easybuild/easyblocks/g/gcc.pyo) ... == 2019-03-13 05:15:00,072 filetools.py:725 DEBUG Using blocksize 16777216 for calculating the checksum == 2019-03-13 05:15:00,072 filetools.py:773 DEBUG Computed sha256 checksum for /sNow/easybuild/software/EasyBuild/3.2.1/lib/python2.7/site-packages/easybuild_easyconfigs-3.2.1-py2.7.egg/easybuild/easyconfigs/g/GCCcore/mpfr-3.1.5-allpatches-20170606.patch: 020521f9e993246b294edc8dccf86222a1b887b0ad17d284f14041d119509b1a (correct checksum: 137108952139486755e8c1bee30314ffa9233cc05cddfd848aa85503a6fea9d7)