https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67467
Dominique d'Humieres <dominiq at lps dot ens.fr> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2015-09-06 Summary|Using "-Wall -Wextra |[5 Regression] Using "-Wall |-Wno-unused-dummy-argument" |-Wextra |causes error |-Wno-unused-dummy-argument" | |causes error Ever confirmed|0 |1 --- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- ICE confirmed for 5.2. It is fixed on trunk (6.0), and 4.9 gives pr67467.f90:4:0: warning: unused parameter 'a' [-Wunused-parameter] INTEGER FUNCTION test( a ) IIRC there was some changes recently around 'unused-parameter' (parameter does not have the same meaning in C and Fortran).