# FreeFem Installation PETSc config Error **URL:** \ **Category:** FreeFEM installation\ **Created:** [October 16, 2022, 9:08pm UTC](https://community.freefem.org/t/freefem-installation-petsc-config-error/2065 "2022-10-16T21:08:35Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![byb](https://avatars.discourse-cdn.com/v4/letter/b/71e660/32.png) [@byb](https://community.freefem.org/u/byb)\ **Post date:** [October 16, 2022, 9:08pm UTC](https://community.freefem.org/t/freefem-installation-petsc-config-error/2065/1 "2022-10-16T21:08:35Z")
Hello all, I am trying to install the new FreeFem version 4.11 on MacOs Monterey. I am getting this error message when I follow the steps of the installation. I tried previous versions and get the same error message. Do you have an idea from where this can come ? Thank you ```auto ============================================================================================= Configuring PETSc to compile on your system ============================================================================================= ============================================================================================= WARNING! Found environment variable: MAKEFLAGS=SUDO=sudo Ignoring it, since its also set on command line ============================================================================================= TESTING: checkFortranCompiler from config.setCompilers(config/BuildSystem/config/setCompilers.py:1748) ******************************************************************************* UNABLE to CONFIGURE with GIVEN OPTIONS (see configure.log for details): ------------------------------------------------------------------------------- Fortran compiler you provided with --with-fc=gfortran cannot be found or does not work. Cannot compile/link FC with gfortran. ******************************************************************************* make: *** [petsc-3.17.0/tag-conf-real] Error 1 ``` and config.log : ```auto ## ---------------------- ## ## Running config.status. ## ## ---------------------- ## This file was extended by FreeFEM config.status 4.11, which was generated by GNU Autoconf 2.71. Invocation command line was CONFIG_FILES = CONFIG_HEADERS = CONFIG_LINKS = CONFIG_COMMANDS = $ ../../config.status --file=Makefile.inc:Makefile-PETSc.inc on PortYacine.local config.status:1220: creating Makefile.inc ``` ---
**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\ **Post date:** [October 17, 2022, 5:25am UTC](https://community.freefem.org/t/freefem-installation-petsc-config-error/2065/2 "2022-10-17T05:25:03Z")
Could you please: 1. try the `develop` branch instead of `master`, 2. send `3rdparty/ff-petsc/petsc-3.18.0/configure.log` if the error persists. ---
**Author:** ![byb](https://avatars.discourse-cdn.com/v4/letter/b/71e660/32.png) [@byb](https://community.freefem.org/u/byb)\ **Post date:** [October 17, 2022, 10:13pm UTC](https://community.freefem.org/t/freefem-installation-petsc-config-error/2065/3 "2022-10-17T22:13:24Z")
> [@prj](#): > > 3rdparty/ff-petsc/petsc-3.18.0/ Thank you for your reply. I have tried with develop branch and observe the same error. Unfortunatly, as I am a new user I cannot share the configure.log file. Here the last part of the file. ```auto ===== Checking compiler Executing: gfortran -c -o /var/folders/5z/jkmtl4fj6_qb47sgxkbnjn7h0000gn/T/petsc-zm5iwfo1/config.setCompilers/conftest.o -I/var/folders/5z/jkmtl4fj6_qb47sgxkbnjn7h0000gn/T/petsc-zm5iwfo1/config.setCompilers /var/folders/5z/jkmtl4fj6_qb47sgxkbnjn7h0000gn/T/petsc-zm5iwfo1/config.setCompilers/conftest.F90 Successful compile: Source: program main end ===== Checking linker Executing: gfortran -c -o /var/folders/5z/jkmtl4fj6_qb47sgxkbnjn7h0000gn/T/petsc-zm5iwfo1/config.setCompilers/conftest.o -I/var/folders/5z/jkmtl4fj6_qb47sgxkbnjn7h0000gn/T/petsc-zm5iwfo1/config.setCompilers /var/folders/5z/jkmtl4fj6_qb47sgxkbnjn7h0000gn/T/petsc-zm5iwfo1/config.setCompilers/conftest.F90 Successful compile: Source: program main end Executing: gfortran -o /var/folders/5z/jkmtl4fj6_qb47sgxkbnjn7h0000gn/T/petsc-zm5iwfo1/config.setCompilers/conftest /var/folders/5z/jkmtl4fj6_qb47sgxkbnjn7h0000gn/T/petsc-zm5iwfo1/config.setCompilers/conftest.o Possible ERROR while running linker: exit code 1 stderr: ld: library not found for -lSystem collect2: error: ld returned 1 exit status Linker output before filtering: ld: library not found for -lSystem collect2: error: ld returned 1 exit status : Linker output after filtering: ld: library not found for -lSystem collect2: error: ld returned 1 exit status: Error testing Fortran compiler: Cannot compile/link FC with gfortran. Deleting "FC" ******************************************************************************* UNABLE to CONFIGURE with GIVEN OPTIONS (see configure.log for details): ------------------------------------------------------------------------------- Fortran compiler you provided with --with-fc=gfortran cannot be found or does not work. Cannot compile/link FC with gfortran. ******************************************************************************* File "/Users/yacine/Desktop/FreeFem-sources-4.11/3rdparty/ff-petsc/petsc-3.17.0/config/configure.py", line 469, in petsc_configure framework.configure(out = sys.stdout) File "/Users/yacine/Desktop/FreeFem-sources-4.11/3rdparty/ff-petsc/petsc-3.17.0/config/BuildSystem/config/framework.py", line 1404, in configure self.processChildren() File "/Users/yacine/Desktop/FreeFem-sources-4.11/3rdparty/ff-petsc/petsc-3.17.0/config/BuildSystem/config/framework.py", line 1392, in processChildren self.serialEvaluation(self.childGraph) File "/Users/yacine/Desktop/FreeFem-sources-4.11/3rdparty/ff-petsc/petsc-3.17.0/config/BuildSystem/config/framework.py", line 1367, in serialEvaluation child.configure() File "/Users/yacine/Desktop/FreeFem-sources-4.11/3rdparty/ff-petsc/petsc-3.17.0/config/BuildSystem/config/setCompilers.py", line 2651, in configure self.executeTest(self.checkFortranCompiler) File "/Users/yacine/Desktop/FreeFem-sources-4.11/3rdparty/ff-petsc/petsc-3.17.0/config/BuildSystem/config/base.py", line 138, in executeTest ret = test(*args,**kargs) File "/Users/yacine/Desktop/FreeFem-sources-4.11/3rdparty/ff-petsc/petsc-3.17.0/config/BuildSystem/config/setCompilers.py", line 1755, in checkFortranCompiler for compiler in self.generateFortranCompilerGuesses(): File "/Users/yacine/Desktop/FreeFem-sources-4.11/3rdparty/ff-petsc/petsc-3.17.0/config/BuildSystem/config/setCompilers.py", line 1680, in generateFortranCompilerGuesses raise RuntimeError('Fortran compiler you provided with --with-fc='+self.argDB['with-fc']+' cannot be found or does not work.'+'\n'+self.mesg) ================================================================================ Finishing configure run at Tue, 18 Oct 2022 00:01:31 +0200 ================================================================================ ``` ---
**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\ **Post date:** [October 18, 2022, 6:07am UTC](https://community.freefem.org/t/freefem-installation-petsc-config-error/2065/4 "2022-10-18T06:07:40Z")
You are still trying to build PETSc 3.17.0, which means you are not tracking an up-to-date FreeFEM `develop` branch. Please restart from scratch. ---
**Author:** ![byb](https://avatars.discourse-cdn.com/v4/letter/b/71e660/32.png) [@byb](https://community.freefem.org/u/byb)\ **Post date:** [October 19, 2022, 1:28pm UTC](https://community.freefem.org/t/freefem-installation-petsc-config-error/2065/5 "2022-10-19T13:28:30Z")
Hi prj, I downloded the develop branch from this link: [https://github.com/FreeFem/FreeFem-sources/tree/develop](https://github.com/FreeFem/FreeFem-sources/tree/develop) I am still getting the same error message : ```auto ============================================================================================= Configuring PETSc to compile on your system ============================================================================================= TESTING: checkFortranCompiler from config.setCompilers(config/BuildSystem/config/setCompilers.py:1824) ******************************************************************************* UNABLE to CONFIGURE with GIVEN OPTIONS (see configure.log for details): ------------------------------------------------------------------------------- Fortran compiler you provided with --with-fc=gfortran cannot be found or does not work. Cannot compile/link FC with gfortran. ******************************************************************************* make: *** [petsc-3.18.0/tag-conf-real] Error 1 ``` Here is a section of : 3rdparty/ff-petsc/petsc-3.18.0/configure.log ````auto 618 Executing: gfortran -c -o /tmp/petsc-8jrxzd2j/config.setCompilers/conftest.o -I/tmp/petsc-8jrxzd2j/config.setCompilers /tmp/petsc-8jrxzd2j/config.setCompilers/conftest.F90 619 Successful compile: 620 Source: 621 program main 622 623 end 624 625 Executing: gfortran -o /tmp/petsc-8jrxzd2j/config.setCompilers/conftest /tmp/petsc-8jrxzd2j/config.setCompilers/conftest.o 626 Possible ERROR while running linker: exit code 1 627 stderr: 628 ld: library not found for -lSystem 629 collect2: error: ld returned 1 exit status 630 Linker output before filtering: 631 632 ld: library not found for -lSystem 633 collect2: error: ld returned 1 exit status 634 : 635 Linker output after filtering: 636 ld: library not found for -lSystem 637 collect2: error: ld returned 1 exit status: 638 Error testing Fortran compiler: Cannot compile/link FC with gfortran. 639 MPI compiler wrapper gfortran is likely incorrect. 640 Use --with-mpi-dir to indicate an alternate MPI. 641 Deleting "FC" 642 ******************************************************************************* 643 UNABLE to CONFIGURE with GIVEN OPTIONS (see configure.log for details): 644 ------------------------------------------------------------------------------- 645 Fortran compiler you provided with --with-fc=gfortran cannot be found or does not work. 646 Cannot compile/link FC with gfortran. 647 ******************************************************************************* 648 File "/Users/yacine/Desktop/FreeFem-sources-develop/3rdparty/ff-petsc/petsc-3.18.0/config/configure.py", line 461, in petsc_configure 649 framework.configure(out = sys.stdout) 650 File "/Users/yacine/Desktop/FreeFem-sources-develop/3rdparty/ff-petsc/petsc-3.18.0/config/BuildSystem/config/framework.py", line 1409, in configure 651 self.processChildren() 652 File "/Users/yacine/Desktop/FreeFem-sources-develop/3rdparty/ff-petsc/petsc-3.18.0/config/BuildSystem/config/framework.py", line 1397, in processChildren 653 self.serialEvaluation(self.childGraph) 654 File "/Users/yacine/Desktop/FreeFem-sources-develop/3rdparty/ff-petsc/petsc-3.18.0/config/BuildSystem/config/framework.py", line 1372, in serialEvaluation 655 child.configure() 656 File "/Users/yacine/Desktop/FreeFem-sources-develop/3rdparty/ff-petsc/petsc-3.18.0/config/BuildSystem/config/setCompilers.py", line 2741, in configure 657 self.executeTest(self.checkFortranCompiler) 658 File "/Users/yacine/Desktop/FreeFem-sources-develop/3rdparty/ff-petsc/petsc-3.18.0/config/BuildSystem/config/base.py", line 138, in executeTest 659 ret = test(*args,**kargs) 660 File "/Users/yacine/Desktop/FreeFem-sources-develop/3rdparty/ff-petsc/petsc-3.18.0/config/BuildSystem/config/setCompilers.py", line 1831, in checkFortranCompiler 661 for compiler in self.generateFortranCompilerGuesses(): 662 File "/Users/yacine/Desktop/FreeFem-sources-develop/3rdparty/ff-petsc/petsc-3.18.0/config/BuildSystem/config/setCompilers.py", line 1756, in generateFortranCompilerGuesses 663 raise RuntimeError('Fortran compiler you provided with --with-fc='+self.argDB['with-fc']+' cannot be found or does not work.'+'\n'+self.mesg) 664 ================================================================================ 665 Finishing configure run at Wed, 19 Oct 2022 15:22:20 +0200 666 ================================================================================``` Thank you in advance for your time. ```` ---
**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\ **Post date:** [October 19, 2022, 1:33pm UTC](https://community.freefem.org/t/freefem-installation-petsc-config-error/2065/6 "2022-10-19T13:33:06Z")
Is `gfortran` installed on your machine? I would really need that file in full 😕 Can’t you upload it somewhere, e.g., WeTransfer? Or send it directly to my email address? ---
**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\ **Post date:** [October 19, 2022, 1:35pm UTC](https://community.freefem.org/t/freefem-installation-petsc-config-error/2065/7 "2022-10-19T13:35:18Z")
I’ve given you enough privilege on the forum so that you can now upload `configure.log`. Please do so.