Static-libgfortran in library assembly

Question

I am trying to create a library that has only static links to libgfortran (and preferably libgcc ).

However, if I use linker flags

 -static -lgfortran -static-libgfortran -static-libgcc 

on OS X I get

 ld: library not found for -lcrt0.o collect2: error: ld returned 1 exit status 

and if I try to use

 -shared -lgfortran -static-libgfortran 

I get

 Undefined symbols for architecture x86_64: "_quadmath_snprintf", referenced from: _write_float in libgfortran.a(write.o) "_strtoflt128", referenced from: __gfortrani_convert_real in libgfortran.a(read.o) __gfortrani_convert_infnan in libgfortran.a(read.o) 

and everything compiles fine (but has a dynamic link to libgfortran and libgcc) if I use -dynamiclib -lgfortran .

It seems that gcc does not build statically in OS X.

How do I create my library so that end users do not need to install gfortran or gcc?

I am using the gcc version for macports, but I am ready to use another gfortran / gcc distributor if this allows me to do this.

Answer 1

 -dynamiclib -lgfortran -static-libgfortran \ /opt/local/lib/gcc47/libquadmath.a -static-libgcc 

seems to be doing the trick!

The bizarre thing was that I needed to add the full path to libquadmath.a , which would look like a bug with gcc / gfortran , to be honest.