libphobos: Define main function as extern(C) when compiling without D runtime (PR102476)

[official-gcc.git] / gcc / testsuite / gdc.dg / pr102476.d

// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102476
// { dg-do link }
// { dg-options "-fmain -fno-druntime" }