source/*: Use unique_function so our callbacks can be move-only
This will allow move-only types like unique_ptr to be used in callbacks.
Change-Id: Ia99925cea3bf96e3c213ba0fe093cc6ab3f5a421
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/src/meson.build b/src/meson.build
index 59875da..ebe678c 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -1,6 +1,28 @@
+# Function2 might not have a pkg-config. It is header only so just make
+# sure we can access the needed symbols from the header.
+function2_dep = dependency('function2', required: false)
+has_function2 = meson.get_compiler('cpp').has_header_symbol(
+ 'function2/function2.hpp',
+ 'fu2::unique_function',
+ dependencies: function2_dep,
+ required: false)
+if not has_function2
+ function2_proj = import('cmake').subproject(
+ 'function2',
+ cmake_options: [
+ '-DBUILD_TESTING=OFF',
+ ],
+ required: false)
+ assert(function2_proj.found(), 'function2 is required')
+ if function2_proj.found()
+ function2_dep = function2_proj.dependency('function2')
+ endif
+endif
+
sdeventplus_deps = [
dependency('libsystemd', version: '>=239'),
dependency('stdplus', fallback: ['stdplus', 'stdplus']),
+ function2_dep,
]
sdeventplus_headers = include_directories('.')