Fails to compile with icc #269
Description
I tried to build using Intel icc version 19.1.0.20191121 and the cmake succeeds to run:
$ cmake -DCMAKE_INSTALL_PREFIX:PATH=/builds/certik/truchas/scratch/python-install ../python-cmake-buildsystem
-- The C compiler identification is Intel 19.1.0.20191121
-- The ASM compiler identification is Intel
-- Found assembler: /opt/intel/bin/icc
-- Check for working C compiler: /opt/intel/bin/icc
-- Check for working C compiler: /opt/intel/bin/icc -- works
-- Detecting C compiler ABI info
...
-- Configuring done
-- Generating done
-- Build files have been written to: /builds/certik/truchas/scratch/python-build
But when I run make, it fails:
$ make -j8
...
[ 31%] Building C object CMakeBuild/libpython/CMakeFiles/pgen.dir/builds/certik/truchas/scratch/Python-3.6.7/Parser/grammar.c.o
/builds/certik/truchas/scratch/Python-3.6.7/Parser/grammar.c(37): error: expected an expression
for (int j = 0; j < g->g_dfa[i].d_nstates; j++)
^
/builds/certik/truchas/scratch/Python-3.6.7/Parser/grammar.c(37): error: identifier "j" is undefined
for (int j = 0; j < g->g_dfa[i].d_nstates; j++)
^
compilation aborted for /builds/certik/truchas/scratch/Python-3.6.7/Parser/grammar.c (code 2)
make[2]: *** [CMakeBuild/libpython/CMakeFiles/pgen.dir/builds/certik/truchas/scratch/Python-3.6.7/Parser/grammar.c.o] Error 2
It looks like the icc compiler does not allow to define variables inside the for loop.
I don't know if icc is supported, but if not, then I would expect cmake to error out sooner. It might also be possible to fix the failures with a patch.