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-rw-r--r--CMakeLists.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 354a6ae08..98e97473b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -73,6 +73,7 @@ add_optional_compile_options(Wundef)
add_optional_compile_options(Wdouble-promotion)
add_optional_compile_options(Wsuggest-override)
add_optional_compile_options(Werror=suggest-override)
+add_optional_compile_options(Werror=return-type)
# apt-ftparchive dependencies
find_package(BerkeleyDB REQUIRED)
if (BERKELEY_DB_FOUND)