[mercury-users] Problem running Mercury on Mandrake 9.0

[Michael Wybrow]

Ok, so I just recently upgraded my Linux machine at home to Mandrake 9.0.
I have installed Mercury from source (specifically 0.11.1-beta-2003-01-22)
and it all seemed to work fine.

Unfortunately, whenever I try to compile anything `ml' fails with:
	
	[mjwybrow at archroy tmp]$ ml
	/usr/bin/ld: cannot find -lm
	collect2: ld returned 1 exit status

The reason for this is that shared libraries are not used as the default
on Linux but on this machine there is no static version of libm:

	[mjwybrow at archroy tmp]$ gcc --static -lm
	/usr/bin/ld: cannot find -lm
	collect2: ld returned 1 exit status

	[mjwybrow at archroy tmp]$ locate libm.{a,so}
	/usr/lib/libm.so
	/lib/i686/libm.so.6
	/lib/libm.so.6

The simple solution for me was to edit `ml' to manually set the variable
all_libs:

	all_libs=shared

This seems to be similar to the situation documented for Solaris/x86 in
`ml':

	# shared libraries are not the default on Linux
	# -- see README.Linux
	# Likewise for FreeBSD and Cygwin
	#
	# We don't do this for Solaris/x86 because -ldl is
	# only available for dynamically linked executables
	# XXX With these defaults linking with Mercury libraries
	# other than the standard library will fail.

Is this a case that should perhaps be checked for by the configure
script?


Cheers,
Michael
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