replace Catch2 build dep in pybind11 via parse hook

easystacks/software.eessi.io/2023.06/eessi-2023.06-eb-4.8.2-2023a.yml

@@ -3,10 +3,10 @@ easyconfigs:
       options:
         from-pr: 19264
   - foss-2023a.eb
-  - SciPy-bundle-2023.07-gfbf-2023a.eb
   - pybind11-2.11.1-GCCcore-12.3.0.eb:
       options:
         from-pr: 19270
+  - SciPy-bundle-2023.07-gfbf-2023a.eb
   - TensorFlow-2.13.0-foss-2023a.eb:
       options:
         from-pr: 19268

eb_hooks.py

@@ -4,6 +4,7 @@
 import re
 
 from easybuild.easyblocks.generic.configuremake import obtain_config_guess
+from easybuild.framework.easyconfig.constants import EASYCONFIG_CONSTANTS
 from easybuild.tools.build_log import EasyBuildError, print_msg
 from easybuild.tools.config import build_option, update_build_option
 from easybuild.tools.filetools import apply_regex_substitutions, copy_file, which
@@ -22,6 +23,8 @@
 
 EESSI_RPATH_OVERRIDE_ATTR = 'orig_rpath_override_dirs'
 
+SYSTEM = EASYCONFIG_CONSTANTS['SYSTEM'][0]
+
 
 def get_eessi_envvar(eessi_envvar):
     """Get an EESSI environment variable from the environment"""
@@ -180,6 +183,25 @@ def parse_hook_openblas_relax_lapack_tests_num_errors(ec, eprefix):
         raise EasyBuildError("OpenBLAS-specific hook triggered for non-OpenBLAS easyconfig?!")
 
 
+def parse_hook_pybind11_replace_catch2(ec, eprefix):
+    """
+    Replace Catch2 build dependency in pybind11 easyconfigs with one that doesn't use system toolchain.
+    cfr. https://github.com/easybuilders/easybuild-easyconfigs/pull/19270
+    """
+    # tihs is mainly necessary to avoid that --missing keeps reporting Catch2/2.13.9 is missing,
+    # and to avoid that we need to use "--from-pr 19270" for every easyconfigs that (indirectly) depends on pybind11
+    if ec.name == 'pybind11' and ec.version in ['2.10.3', '2.11.1']:
+        build_deps = ec['builddependencies']
+        catch2_build_dep = None
+        catch2_name, catch2_version = ('Catch2', '2.13.9')
+        for idx, build_dep in enumerate(build_deps):
+            if build_dep[0] == catch2_name and build_dep[1] == catch2_version:
+                catch2_build_dep = build_dep
+                break
+        if catch2_build_dep and len(catch2_build_dep) == 4 and catch2_build_dep[3] == SYSTEM:
+            build_deps[idx] = (catch2_name, catch2_version)
+
+
 def parse_hook_qt5_check_qtwebengine_disable(ec, eprefix):
     """
     Disable check for QtWebEngine in Qt5 as workaround for problem with determining glibc version.
@@ -341,6 +363,7 @@ def pre_single_extension_isoband(ext, *args, **kwargs):
     'CGAL': parse_hook_cgal_toolchainopts_precise,
     'fontconfig': parse_hook_fontconfig_add_fonts,
     'OpenBLAS': parse_hook_openblas_relax_lapack_tests_num_errors,
+    'pybind11': parse_hook_pybind11_replace_catch2,
     'Qt5': parse_hook_qt5_check_qtwebengine_disable,
     'UCX': parse_hook_ucx_eprefix,
 }