Hi, all!
I'm trying to compile R on a Solaris machine. The default C compiler is
cc (although gcc is available) and the default Fortran compiler is f95
(although g77 is available).
Without defining the F77 environment variable, configure defaults to f95
as a Fortran compiler and eventually fails with the following output:
---------------------------------
checking whether mixed C/Fortran code can be run... configure: WARNING:
cannot run mixed C/Fortan code
configure: error: Maybe check LDFLAGS for paths to Fortran libraries?
---------------------------------
Setting LDFLAGS to the path where the Fortran libraries sit makes the C
compiler complain.
If I give the value g77 to F77, there are two interesting issues:
1)
-------------------------
defining F77 to be g77
checking whether we are using the GNU Fortran 77 compiler... no
checking whether g77 accepts -g... yes
-------------------------
Why does configure think we are not using the GNU Fortran 77 compiler?
But more importantly
2)
-------------------------------------
checking how to get verbose linking output from g77... configure:
WARNING: compilation failed
checking for Fortran libraries of g77...
checking how to get verbose linking output from cc... -###
checking for C libraries of cc... -L/usr/local/lib -lthread
checking for dummy main to link with Fortran libraries... none
checking for Fortran name-mangling scheme... configure: error: cannot
compile a simple Fortran program
-------------------------------------
I tried to compile a simple "Hello World" program with either compiler
and both work without a problem.
Any ideas?
Toby
