Enhance gcc test for visible variables with -fwhole-program.

Add 'extern' decl before variable test - some older compilers wont
    mark a variable visible if an extern decl precedes it.
1 file changed
tree: 6765950167fe6553fe220f792f0a26fa75a3c197
  1. src/
  2. tools/
  3. vgasrc/
  4. .gitignore
  5. COPYING
  6. COPYING.LESSER
  7. Makefile
  8. README
  9. TODO