[Bug 2062145] Re: python-pyscss: FTBFS: scss/src/scanner.h:20:10: fatal error: pcre.h: No such file or directory

[Jeremy Bícha]

Would using pcre3 (the confusingly named older library) fix the build?

Unfortunately, we just succeeded in demoting pcre3 to universe so it's
not clear whether we would want to let it back into main.

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Title:
  python-pyscss: FTBFS: scss/src/scanner.h:20:10: fatal error: pcre.h:
  No such file or directory

Status in python-pyscss package in Ubuntu:
  New
Status in python-pyscss package in Debian:
  New

Bug description:
  Imported from Debian bug http://bugs.debian.org/1042220:

  Source: python-pyscss
  Version: 1.4.0-3
  Severity: serious
  Justification: FTBFS
  Tags: trixie sid ftbfs
  User: lucas at debian.org
  Usertags: ftbfs-20230726 ftbfs-trixie

  Hi,

  During a rebuild of all packages in sid, your package failed to build
  on amd64.

  Relevant part (hopefully):
  > x86_64-linux-gnu-gcc -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/python3.11 -c scss/src/_speedups.c -o build/temp.linux-x86_64-cpython-311/scss/src/_speedups.o
  > In file included from scss/src/_speedups.c:15:
  > scss/src/scanner.h:20:10: fatal error: pcre.h: No such file or directory
  >    20 | #include <pcre.h>
  >       |          ^~~~~~~~
  > compilation terminated.
  > ==========================================================================
  > WARNING: The C extension could not be compiled, speedups are not enabled.
  > Failure information, if any, is above.
  > Retrying the build without the C extension now.
  >
  > running build
  > running build_py
  > ==========================================================================
  > WARNING: The C extension could not be compiled, speedups are not enabled.
  > pyScss will still work fine, but may be slower.
  > The most likely cause is missing PCRE headers; you may need to install libpcre or libpcre-dev, depending on your platform.
  > Plain-Python installation succeeded.
  > ==========================================================================
  >    dh_auto_test -O--buildsystem=pybuild
  > I: pybuild base:240: cd /<<PKGBUILDDIR>>/.pybuild/cpython3_3.11_pyscss/build; python3.11 -m pytest /<<PKGBUILDDIR>>/scss/tests
  > ============================= test session starts ==============================
  > platform linux -- Python 3.11.4, pytest-7.4.0, pluggy-1.2.0
  > rootdir: /<<PKGBUILDDIR>>/scss
  > collected 220 items
  >
  > ../../../scss/tests/test_cli.py .                                        [  0%]
  > ../../../scss/tests/test_expression.py .....                             [  2%]
  > ../../../scss/tests/test_interactive.py ..                               [  3%]
  > ../../../scss/tests/test_misc.py ......                                  [  6%]
  > ../../../scss/tests/test_types.py .......                                [  9%]
  > ../../../scss/tests/extension/test_core.py ............................. [ 22%]
  > .................................                                        [ 37%]
  > ../../../scss/tests/extension/test_extra.py ....                         [ 39%]
  > ../../../scss/tests/extension/compass/test_gradients.py .x               [ 40%]
  > ../../../scss/tests/extension/compass/test_helpers.py ................   [ 47%]
  > ../../../scss/tests/extension/compass/test_images.py ...                 [ 49%]
  > ../../../scss/tests/from_ruby/test_extend.py EEEEEEEEEEEEEEEEEEEEEEEEEEE [ 61%]
  > EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE [ 94%]
  > EEEEEEEEEEEEE                                                            [100%]
  >
  > ==================================== ERRORS ====================================
  > _________________________ ERROR at setup of test_basic _________________________
  > 'Namespace' object has no attribute 'include_ruby'
  >
  > The above exception was the direct cause of the following exception:
  > no option named 'include_ruby'
  >
  > During handling of the above exception, another exception occurred:
  > Error evaluating 'skipif' condition
  >     not config.getoption('include_ruby')
  > ValueError: no option named 'include_ruby'
  > ___________________ ERROR at setup of test_multiple_targets ____________________
  [...]

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