https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100910
Dominique d'Humieres <dominiq at lps dot ens.fr> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2021-06-05 Ever confirmed|0 |1 --- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- On my system I get % gfc pr100910.f90 pr100910.c pr100910.c: In function 'c_vrfy_long_double_complex': c_vrfy_long_double_complex': pr100910.c:49:43: warning: implicit declaration of function 'CMPLX' [-Wimplicit-function-declaration] 49 | if ((cabsl (*ip-(long double complex)(CMPLX((double)(i+1), (double)(2*(i+1)))))>(long double)0.0)) | ^~~~~ Undefined symbols for architecture x86_64: "_CMPLX", referenced from: _c_vrfy_long_double_complex in ccyI5oZ3.o ld: symbol(s) not found for architecture x86_64 collect2: error: ld returned 1 exit status