[Bug fortran/14568] [gfortran] should not warn about unused variables in common blocks

[pbrook at gcc dot gnu dot org]

------- Additional Comments From pbrook at gcc dot gnu dot org  2004-03-26 19:17 -------
You must declare variables in a common block in order to determine it's size and layout. 
Hence we should not warn if you only use some of them. 
 
We could warn for entirely unused common blocks. 

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14568