Also works with PathScale EKOPath Compiler Suite installed on MCS machines.
$ pathcc -c check-pic.c -fPIC $ pathcc -c check-pic.c check-pic.c:2:2: error: "no-PIC" #error "no-PIC" ^ 1 error generated. --Junchao Zhang On Tue, May 28, 2019 at 1:54 PM Smith, Barry F. via petsc-users <petsc-users@mcs.anl.gov<mailto:petsc-users@mcs.anl.gov>> wrote: Works for Intel and PGI compiles (the version I checked) bsmith@es:~$ pgcc check-pic.c -PIC pgcc-Error-Unknown switch: -PIC bsmith@es:~$ pgcc check-pic.c -fPIC bsmith@es:~$ pgcc check-pic.c PGC-F-0249-#error -- "no-PIC" (check-pic.c: 2) PGC/x86-64 Linux 19.3-0: compilation aborted bsmith@es:~$ icc check-pic.c check-pic.c(2): error: #error directive: "no-PIC" #error "no-PIC" ^ compilation aborted for check-pic.c (code 2) bsmith@es:~$ icc check-pic.c -PIC icc: command line warning #10006: ignoring unknown option '-PIC' check-pic.c(2): error: #error directive: "no-PIC" #error "no-PIC" ^ compilation aborted for check-pic.c (code 2) bsmith@es:~$ icc check-pic.c -fPIC bsmith@es:~$ You are the man! > On May 28, 2019, at 12:29 PM, Lisandro Dalcin via petsc-users > <petsc-users@mcs.anl.gov<mailto:petsc-users@mcs.anl.gov>> wrote: > > > > On Tue, 28 May 2019 at 18:19, Jed Brown > <j...@jedbrown.org<mailto:j...@jedbrown.org>> wrote: > Lisandro Dalcin via petsc-users > <petsc-users@mcs.anl.gov<mailto:petsc-users@mcs.anl.gov>> writes: > > > On Tue, 28 May 2019 at 17:31, Balay, Satish via petsc-users < > > petsc-users@mcs.anl.gov<mailto:petsc-users@mcs.anl.gov>> wrote: > > > >> Configure.log shows '--with-pic=1' - hence this error. > >> > >> Remove '--with-pic=1' and retry. > >> > >> > > Nonsense. Why this behavior? Building a static library with PIC code is a > > perfectly valid use case. > > And that's what will happen because Inge passed -fPIC in CFLAGS et al. > > Do you know how we could confirm that PIC code is generated without > attempting to use shared libraries? > > > I know how to do it with the `readelf` command for ELF objects. I even know > how to do it compile-time for GCC and clang. Maybe Intel also works this way. > I do not know about a general solution, though. > > $ cat check-pic.c > #ifndef __PIC__ > #error "no-PIC" > #endif > > $ gcc -c check-pic.c -fPIC > > $ clang -c check-pic.c -fPIC > > $ gcc -c check-pic.c > check-pic.c:2:2: error: #error "no-PIC" > 2 | #error "no-PIC" > | ^~~~~ > > $ clang -c check-pic.c > check-pic.c:2:2: error: "no-PIC" > #error "no-PIC" > ^ > 1 error generated. > > -- > Lisandro Dalcin > ============ > Research Scientist > Extreme Computing Research Center (ECRC) > King Abdullah University of Science and Technology (KAUST) > http://ecrc.kaust.edu.sa/
