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[tree-ssa, committed] Re-instated f/config-lang.in


L.S.,

Richard Henderson removed this file, I re-instated it.

My motivation was that, with "build_by_default"=no, it would better serve its purpose, namely to prevent building g77 *and its runtime libraries*.

Building g77 on the tree-ssa branch with --enable-languages=f77 indeed draws a lot of error messages. However, all that I examined were of the type:

/home/toon/compilers/tree-ssa/gcc/gcc/testsuite/g77.dg/bprob/g77-bprob-1.f:100: internal compiler error: in create_loop_notes, at cfgloopmanip.c:1273

So I don't think g77 is yet that much incompatible with the tree-ssa effort.

--
Toon Moene - mailto:toon@moene.indiv.nluug.nl - phoneto: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
Maintainer, GNU Fortran 77: http://gcc.gnu.org/onlinedocs/g77_news.html
GNU Fortran 95: http://gcc.gnu.org/fortran/ (under construction)


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