https://gcc.gnu.org/bugzilla/show_bug.cgi?id=35014
--- Comment #10 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
The manual says:
> On systems that provide libgfortran as a shared and a static library,
> this option forces the use of the static version. If no shared version
> of libgfortran was built when the compiler was configured, this option
> has no effect.
On MacOSX if I compile a simple test, I get
a.out:
/opt/gcc/gcc11w/lib/libgfortran.5.dylib (compatibility version 6.0.0,
current version 6.0.0)
/opt/gcc/gcc11w/lib/libgcc_s.2.dylib (compatibility version 2.0.0,
current version 2.0.0)
/opt/gcc/gcc11w/lib/libquadmath.0.dylib (compatibility version 1.0.0,
current version 1.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current
version 1292.0.0)
with -static-libgfortran
a.out:
/opt/gcc/gcc11w/lib/libgcc_s.2.dylib (compatibility version 2.0.0,
current version 2.0.0)
/opt/gcc/gcc11w/lib/libquadmath.0.dylib (compatibility version 1.0.0,
current version 1.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current
version 1292.0.0)
and with -static-libgfortran -static-libgcc
a.out:
/opt/gcc/gcc11w/lib/libquadmath.0.dylib (compatibility version 1.0.0,
current version 1.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current
version 1292.0.0)
So AFAICT on an OS for which -fpic is the default everything seems to work.
