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The following changes (to solvers/makefile and solvers/*/makefile)
may permit use of the native Fortran 77 compiler on some systems.
On other systems, you may be able to discover suitable changes by
studying system documents (including man pages), and by using the nm
command to look at the names in relevant libraries. Often the
compiler flags "-v -v" (two -v's) will cause the compiler to tell
you what libraries it references; if, say, /usr/lib/libF77.a is
among them, you could try thing like
nm /usr/lib/libF77.a | grep -i arg
to get a hint at the system's variant (if any) of xargv.
If you make the changes shown below, also remove -lf2c from
solvers/*/makefile. In other words, if you use the native Fortran
compiler, do not link against libf2c.a.
Sun SunOS:
CFLAGS = -O -DKR_headers -DMAIN__=MAIN_ -Dxargv=_xargv
Sun Solaris:
CFLAGS = -O -DMAIN__=main_ -Dxargv=__xargv
For solvers defining MAIN__, add fmain.o built
from fmain.f consisting of the two lines
call main
end
HP:
CFLAGS = -Aa -O
FFLAGS = +ppu
For solvers defining MAIN__, add fmain.o built
from fmain.c consisting of the following:
char **xargv;
extern void MAIN__(void);
main(int argc, char **argv)
{
xargv = argv;
MAIN__();
return 0;
}
IBM RS6000:
CFLAGS = -O -Dxargv=p_xargv -DMAIN__=main_
FFLAGS = -qextname
For solvers defining MAIN__, add fmain.o built
from fmain.f consisting of the two lines
call main
end
SGI IRIX:
CFLAGS = -O -Dxargv=f77argv
DEC OSF1 (Unix for Alpha chip):
CFLAGS = -O -Dxargv=for__a_argv
Linux (with g77):
CFLAGS = -O -Dxargv=f__xargv
Linux (with gfortran):
CFLAGS = -O
For solvers defining MAIN__, supply fmain.o as for HP above.
For solvers (e.g., snopt) that reference etime_(), append
extern double xectim_();
float etime_(float *tarray) { return (float) xectim_(); }
to fmain.c (source for fmain.o; see HP above).
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