Bug 22560 – ImportC: extra semicolon not allowed outside of functions

Compilation fails if an extra semicolon is encountered outside of a function. For example: // semi.c ; // semi.c(1): Error: identifier or `(` expected int main(){return 0;} This is technically correct, but sometimes headers end up with extra semicolons at file scope after pre-processing if conditional type declarations are incorrectly guarded. For example, a header might use a function-like macro to declare a type, conditionally defining it to expand to nothing. Then they incorrectly put a semicolon after the function like macro. For example: #if SOME_CONDITION #define DECLARE(name) struct name #else #define DECLARE(name) #endif DECLARE(name); // this semicolon is incorrect if SOME_CONDITION is false Some headers on macOS have this incorrect pattern. GCC and clang both allow the extra semicolon at file scope.

@WalterBright created dlang/dmd pull request #13385 "fix Issue 22560 - ImportC: extra semicolon not allowed outside of fun…" fixing this issue: - fix Issue 22560 - ImportC: extra semicolon not allowed outside of functions https://github.com/dlang/dmd/pull/13385

dlang/dmd pull request #13385 "fix Issue 22560 - ImportC: extra semicolon not allowed outside of fun…" was merged into stable: - cf325801fe4bfe23e3ea540cdbb9164d3049a832 by Walter Bright: fix Issue 22560 - ImportC: extra semicolon not allowed outside of functions https://github.com/dlang/dmd/pull/13385

dlang/dmd pull request #13421 "merge stable" was merged into master: - 3cfee53f192f71f4f6d4c40b9658ec26559cae62 by Walter Bright: fix Issue 22560 - ImportC: extra semicolon not allowed outside of functions https://github.com/dlang/dmd/pull/13421