Possible the Xcode command line tools need updating. Take a look at https://stackoverflow.com/questions/42538171/how-to-update-xcode-command-line-tools
> On Sep 20, 2023, at 10:43 PM, Ju Liu <[email protected]> wrote: > > Hi PETSc team: > > I recently got my Xcode command line tools upgraded to version 15. When > installing PETSc, the configure command returns an error. My configure > command is > > ./configure --with-cc=gcc --with-fc=0 --with-cxx=0 --download-f2cblaslapack > --download-mpich > > and the message is "Cannot locate all the standard C header files needed by > PETSc". > > The configure.log file is attached. > > How shall I fix this? > > Thanks, > > Ju > <configure.log>
