Description of problem:

When I try to run the first example in the "Fenics book" :


python -c 'import dolfin ; u0 = dolfin.Expression("1 + x[0]*x[0] + 2*x[1]*x[1]")'

... I get an error :

/usr/include/dolfin/function/Expression.h:25:10: fatal error: ufc.h: No such file or directory


Version-Release number of selected component (if applicable):

python3-dolfin-2019.1.0.post0-30.fc36.x86_64
dolfin-2019.1.0.post0-30.fc36.x86_64
dolfin-devel-2019.1.0.post0-30.fc36.x86_64
python3-dijitso-2019.1.0-9.fc36.noarch
python3-ffc-2019.1.0.post0-8.fc36.noarch


How reproducible:

Every time


Steps to Reproduce:

1.

python -c 'import dolfin ; u0 = dolfin.Expression("1 + x[0]*x[0] + 2*x[1]*x[1]")'

2.

:-(

3.

Actual results:


------------------- Start compiler output ------------------------
In file included from /tmp/tmpupqqenu_/dolfin_expression_c49ebd8fd6c25a3c31b612f2a1752a2c.cpp:13:
/usr/include/dolfin/function/Expression.h:25:10: fatal error: ufc.h: No such file or directory
   25 | #include <ufc.h>
      |          ^~~~~~~
compilation terminated.

-------------------  End compiler output  ------------------------
Compilation failed! Sources, command, and errors have been written to: /tmp/jitfailure-dolfin_expression_c49ebd8fd6c25a3c31b612f2a1752a2c
Traceback (most recent call last):
  File "/usr/lib64/python3.10/site-packages/dolfin/jit/jit.py", line 165, in compile_class
    module, signature = dijitso_jit(cpp_data, module_name, params,
  File "/usr/lib64/python3.10/site-packages/dolfin/jit/jit.py", line 47, in mpi_jit
    return local_jit(*args, **kwargs)
  File "/usr/lib64/python3.10/site-packages/dolfin/jit/jit.py", line 103, in dijitso_jit
    return dijitso.jit(*args, **kwargs)
  File "/usr/lib/python3.10/site-packages/dijitso/jit.py", line 216, in jit
    raise DijitsoError("Dijitso JIT compilation failed, see '%s' for details"
dijitso.jit.DijitsoError: Dijitso JIT compilation failed, see '/tmp/jitfailure-dolfin_expression_c49ebd8fd6c25a3c31b612f2a1752a2c' for details

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib64/python3.10/site-packages/dolfin/function/expression.py", line 400, in __init__
    self._cpp_object = jit.compile_expression(cpp_code, params)
  File "/usr/lib64/python3.10/site-packages/dolfin/function/jit.py", line 158, in compile_expression
    expression = compile_class(cpp_data, mpi_comm=mpi_comm)
  File "/usr/lib64/python3.10/site-packages/dolfin/jit/jit.py", line 170, in compile_class
    raise RuntimeError("Unable to compile C++ code with dijitso")
RuntimeError: Unable to compile C++ code with dijitso


Expected results:


Additional info:


Dunno what the problem is.

FYI, there is a ufc.h file in python3-ffc : /usr/lib/python3.10/site-packages/ffc/backends/ufc/ufc.h

Also, I notice in dolfin-devel, there is a /usr/lib64/pkgconfig/dolfin.pc file ...