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docs/known-issues: document the "error compiling FC test program" issue

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Yann E. MORIN" 2010-07-22 23:33:17 +02:00
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docs/known-issues.txt
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@ -97,3 +97,25 @@ Workaround:
Build shared companion libraries.
--------------------------------
Symptoms:
While building the final gcc, I get an error message that ends with:
libtool.m4: error: problem compiling FC test program
Explanations:
The gc build procedure tries to run a Fortran test to see if it has a
working native fortran compiler installed on the build machine, and it
can't find one. A native Fortran compielr is needed (seems to be) to
build the Fortran frontend of the cross-compiler.
Even if you don't want to build the Fortran frontend, gcc tries to see
if it has one, but fails. This is no problem, as the Fortran frontend
will not be built. There is nothing to be worry about (unless you do
want to build the Fortran frontend, of course).
Fix:
None so far. It's a spurious error, so there will probably never be
a fix for this issue.
Workaround:
None needed, it's a spurious error.
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