[yocto] gcc enable-languages

[Edward Vidal]

Hello,
I want to add support for FORTRAN in my image.
On target gcc -v shows --enable-languages=c,c++
This needs to --enable-languages=c,c++,fortran.based on my host system.
How does the variable FORTRAN in
/home/vidal/POKY/build032813_panda/poky/meta/recipes-devtools/gcc/gcc-configure-common.inc
get set?  Can this be done in the local.conf file?
Does the FORTRAN ?= ",f77" this need to be FORTRAN ?= ",fortran" since we
are building gcc4.7?
Any and all help will be appreciated.
Thanks
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