opencv@3: fix build failure on Linux

Follow-up to Homebrew#131405.
carlocab · Jun 6, 2023 · a395f9e · a395f9e
1 parent c339502
commit a395f9e
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/Formula/opencv@3.rb b/Formula/opencv@3.rb
@@ -116,6 +116,9 @@ def install
       args << "-DENABLE_SSE41=OFF" << "-DENABLE_SSE42=OFF" unless MacOS.version.requires_sse42?
     end
 
+    # error: ‘...’ has virtual functions and accessible non-virtual destructor [-Werror=non-virtual-dtor]
+    ENV.append_to_cflags "-Wno-non-virtual-dtor" if OS.linux?
+
     system "cmake", "-S", ".", "-B", "build_shared", *args
     inreplace "build_shared/modules/core/version_string.inc", "#{Superenv.shims_path}/", ""
     system "cmake", "--build", "build_shared"