message: Add Clang warning flag `-Wunknown-pragmas`
diff: @@ -38,7 +38,7 @@ jobs:
  docker:
  - image: outpostuniverse/nas2d-clang:1.3
  environment:
  - WARN_EXTRA: -Wimplicit-int-conversion -Wunreachable-code -Wunreachable-code-return -Wunreachable-code-break -Wcovered-switch-default -Wshadow-field -Wextra-semi -Wextra-semi-stmt -Wnewline-eof -Wdocumentation -Wdocumentation-unknown-command -Wheader-hygiene -Winconsistent-missing-destructor-override -Wdeprecated-copy-dtor -Wformat-nonliteral
  + WARN_EXTRA: -Wunknown-pragmas -Wimplicit-int-conversion -Wunreachable-code -Wunreachable-code-return -Wunreachable-code-break -Wcovered-switch-default -Wshadow-field -Wextra-semi -Wextra-semi-stmt -Wnewline-eof -Wdocumentation -Wdocumentation-unknown-command -Wheader-hygiene -Winconsistent-missing-destructor-override -Wdeprecated-copy-dtor -Wformat-nonliteral
  steps:
  - checkout
  - run: git submodule update --init nas2d-core/
  