Cleanup: assert.

diff --git a/src/lib/font_config.cc b/src/lib/font_config.cc
index 04f426cf97abc8eb4a5044861713ba95a1d26ae2..653c9ba84683fec52e4fb39f29e6ca04e104a284 100644 (file)
--- a/src/lib/font_config.cc
+++ b/src/lib/font_config.cc
@@ -57,6 +57,8 @@ FontConfig::~FontConfig()
 string
 FontConfig::make_font_available(shared_ptr<dcpomatic::Font> font)
 {
+       DCPOMATIC_ASSERT(font);
+
        auto existing = _available_fonts.find(font->content());
        if (existing != _available_fonts.end()) {
                return existing->second;