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I am trying to install PETSc on Cygwin terminal by invoking following command..

./configure --with-cc='win32fe cl'  --with-fc='win32fe ifort' --with-cxx='win32fe cl' --download-fblaslapack

and 

/configure --with-cc=cl --with-cxx=g++ --with-fc=gfortran --download-fblaslapack --download-mpich

It shoots me below error:

C compiler you provided with -with-cc=win32fe cl does not work
C compiler you provided with -with-cc=cl does not work

I'm new to Unix platform so please help me on this.

Nomesh DeSilva
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Manish
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  • A similar problem: ./configure --with-cc=gcc --with-cxx=g++ --with-fc=gfortran --download-mpich --download-fblaslapack Configuring PETSc to compile on your system TESTING: checkCCompiler from config.setCompilers(config/BuildSystem/config/setCompilers.py:620) UNABLE to CONFIGURE with GIVEN OPTIONS (see configure.log for details): C compiler you provided with -with-cc=gcc does not work. Cannot compile C with gcc. **But let me assure you that gcc works fine. It tests out AOK on helloWorld.cpp.** – Peter Leopold Nov 01 '19 at 02:44

2 Answers2

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Try this :

./configure --with-cc="win32fe\ cl"  --with-fc="win32fe\ ifort" --with-cxx="win32fe\ cl" --download-fblaslapack

Note the backslashes added before the whitespaces to escape them.

Thronghar
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  • ./configure --with-cc=gcc --with-cxx=g++ --with-fc=gfortran --download-mpich --download-fblaslapack does not have any whitespaces to escape, but the error is still the same. This is with a fully functional mingw-gcc installation 5.3.0. – Peter Leopold Nov 01 '19 at 02:52
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Is necessary use VStudio prompt (or other C compiler provider) to run CygWin64.

Have to follow the instructions.

Henrique de Canavarro Alencar
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