PR tree-optimization/52019

[pf3gnuchains/gcc-fork.git] / gcc / testsuite / gcc.dg / cpp / warn-undef.c

// { dg-do preprocess }
// { dg-options "-std=gnu99 -fdiagnostics-show-option -Wundef" }

#if x  // { dg-warning "\"x\" is not defined .-Wundef." }
#endif