1 // { dg-do preprocess }
2 // { dg-options "-std=gnu99 -fdiagnostics-show-option -Wcomments" }
3
4 /* /* */ // { dg-warning "4: \"\.\*\" within comment .-Wcomment." }
5
6 // \
7 // { dg-warning "1: multi-line comment .-Wcomment." "multi-line" { target *-*-* } .-1 }
8