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-rw-r--r--mesonbuild/dependencies/base.py14
1 files changed, 9 insertions, 5 deletions
diff --git a/mesonbuild/dependencies/base.py b/mesonbuild/dependencies/base.py
index 5e1109d..4ef3603 100644
--- a/mesonbuild/dependencies/base.py
+++ b/mesonbuild/dependencies/base.py
@@ -977,7 +977,7 @@ class CMakeDependency(ExternalDependency):
def _extra_cmake_opts(self):
return []
- def _map_module_list(self, modules: List[str]) -> List[str]:
+ def _map_module_list(self, modules: List[Tuple[str, bool]]) -> List[Tuple[str, bool]]:
# Map the input module list to something else
# This function will only be executed AFTER the initial CMake
# interpreter pass has completed. Thus variables defined in the
@@ -1074,7 +1074,8 @@ class CMakeDependency(ExternalDependency):
if self.cmakeinfo is None:
raise self._gen_exception('Unable to obtain CMake system information')
- modules = kwargs.get('modules', [])
+ modules = [(x, True) for x in kwargs.get('modules', [])]
+ modules += [(x, False) for x in kwargs.get('optional_modules', [])]
cm_path = kwargs.get('cmake_module_path', [])
cm_args = kwargs.get('cmake_args', [])
if not isinstance(modules, list):
@@ -1255,7 +1256,7 @@ class CMakeDependency(ExternalDependency):
return False
- def _detect_dep(self, name: str, modules: List[str], args: List[str]):
+ def _detect_dep(self, name: str, modules: List[Tuple[str, bool]], args: List[str]):
# Detect a dependency with CMake using the '--find-package' mode
# and the trace output (stderr)
#
@@ -1352,7 +1353,7 @@ class CMakeDependency(ExternalDependency):
lname = name.lower()
if '{}::{}'.format(lname, lname) == tg or lname == tg.replace('::', ''):
mlog.debug('Guessed CMake target \'{}\''.format(i))
- modules = [i]
+ modules = [(i, True)]
break
# Failed to guess a target --> try the old-style method
@@ -1380,8 +1381,11 @@ class CMakeDependency(ExternalDependency):
compileDefinitions = []
compileOptions = []
libraries = []
- for i in modules:
+ for i, required in modules:
if i not in self.targets:
+ if not required:
+ mlog.warning('CMake: Optional CMake target', mlog.bold(i), 'for', mlog.bold(name), 'was not found')
+ continue
raise self._gen_exception('CMake: invalid CMake target {} for {}.\n'
'Try to explicitly specify one or more targets with the "modules" property.\n'
'Valid targets are:\n{}'.format(i, name, list(self.targets.keys())))