This file is generated by configure and placed in $PETSC_DIR/$PETSC_ARCH/include Jose > El 8 jul 2022, a las 15:21, Altaf Ahmed <altafahmed61223 at gmail.com> escribió: > > Hi, > "petscmacros.h" header file uses "petscconf_poison.h" file but I am > unable to locate this file. Any help would be appreciated. > Thank you.