Failed to build due to pycairo error

[anderspetersson]

When bumping dependency to svglib==1.6.0 i'm getting this build error.

uv sync Resolved 74 packages in 168ms Built quizportal @ file:///Users/anders/Projects/quizme_project × Failed to build pycairo==1.28.0├─▶ The build backend returned an error ╰─▶ Call tomesonpy.build_wheel` failed (exit status: 1)

  [stdout]
  + meson setup /Users/anders/.cache/uv/sdists-v9/pypi/pycairo/1.28.0/qutvWnodCpGua3tLtEEhE/src
  /Users/anders/.cache/uv/sdists-v9/pypi/pycairo/1.28.0/qutvWnodCpGua3tLtEEhE/src/.mesonpy-zo14lsgq
  -Dbuildtype=release -Db_ndebug=if-release -Db_vscrt=md -Dwheel=true -Dtests=false
  --native-file=/Users/anders/.cache/uv/sdists-v9/pypi/pycairo/1.28.0/qutvWnodCpGua3tLtEEhE/src/.mesonpy-zo14lsgq/meson-python-native-file.ini
  The Meson build system
  Version: 1.9.1
  Source dir: /Users/anders/.cache/uv/sdists-v9/pypi/pycairo/1.28.0/qutvWnodCpGua3tLtEEhE/src
  Build dir:
  /Users/anders/.cache/uv/sdists-v9/pypi/pycairo/1.28.0/qutvWnodCpGua3tLtEEhE/src/.mesonpy-zo14lsgq
  Build type: native build
  Project name: pycairo
  Project version: 1.28.0

  ../meson.build:1:0: ERROR: Unknown compiler(s): [['cc'], ['gcc'], ['clang'], ['nvc'], ['pgcc'], ['icc'],
  ['icx']]
  The following exception(s) were encountered:
  Running `nvc --version` gave "[Errno 2] No such file or directory: 'nvc'"
  Running `pgcc --version` gave "[Errno 2] No such file or directory: 'pgcc'"
  Running `icc --version` gave "[Errno 2] No such file or directory: 'icc'"
  Running `icx --version` gave "[Errno 2] No such file or directory: 'icx'"

  A full log can be found at
  /Users/anders/.cache/uv/sdists-v9/pypi/pycairo/1.28.0/qutvWnodCpGua3tLtEEhE/src/.mesonpy-zo14lsgq/meson-logs/meson-log.txt

  hint: This usually indicates a problem with the package or the build environment.

help: pycairo (v1.28.0) was included because quizportal (v1.0.0) depends on svglib (v1.6.0) which
depends on rlpycairo (v0.4.0) which depends on `pycairo``

Reverting back to svglib==1.5.1 solves the issue.

[github-actions]

Thank you for raising your first issue! Your help to improve svglib is much appreciated!

[deeplook]

Are you on macOS and don't have Xcode installed, maybe? This will provide a compiler. The GitHub macOS runner has Xcode already installed, see https://github.com/deeplook/svglib/blob/main/.github/workflows/ci-macos.yml. But be aware that 1.6.0 is a "make-over" release without any new functionality.

[anderspetersson]

brew install cairo solves the issue.

[codedoga]

You should just pin to v1.5.1 as everyone in this issue already suggested.

They introduced huge pycairo library as dependency without any reason whatsoever with this PR - #405

If you look at the previous setup.cfg it never required it but newly created pyproject.toml it does via rlpycairo.

Not only does it require changes in CI/CD, makes Docker images bigger but also fails on linux more linux, macOS and windows.

Report lab doesn't make it hard requirement as per their docs: https://docs.reportlab.com/install/open_source_installation/