[ghemical-devel] On MOPAC, g2c.h and header files

[Tommi Hassinen]

Thanks,

here is the release candidate 3:

 	http://www.uku.fi/~thassine/tmp/mopac7-1.10rc3.tgz

Regards,

 	Tommi


On Wed, 12 Oct 2005, Jean Bréfort wrote:

> It did not configure on a machine with gcc-4.0.1 and libf2c but without
> libg2c. The reason is that libf2c needs the MAIN__ symbol and this is
> not provided by the current AC_CHECK_LIB test. It works if the test is:
>
> saved_flags=$CFLAGS
> CFLAGS="-Dmain=MAIN__"
> # Here is a check whether we have libf2c or libg2c (Jean Brefort).
> # If libf2c is present, it is used and both the library and the
> executable is built.
> # If only libg2c is present, then only the library is built and the
> executable is not built.
> have_f2c="no"
> AC_CHECK_LIB([f2c], [main], [have_f2c="yes"; CFLAGS=$saved_flags],
> 	[# If not found, try -lg2c:
> 	CFLAGS=$saved_flags;
> 	AC_CHECK_LIB([g2c], [main], ,
> 		# Still not found, drop out:
> 		AC_MSG_ERROR([Cannot find either f2c or g2c library])]
> 	)
> )
>
> I have tested this solution with gcc-4.0.1 and f2c and with gcc-3.4.4
> and either f2c or g2c. It works in all cases.
>
> Cheers,
> Jean