I am trying to use the GNU Multi-Precision (GMP) library with
FreePascal under Linux.
I have a Pascal interface for GMP (originally for Kylix; translated
from C header file).
The header file libgmp.pas and my using program testgmp.pas compile fine.
But linking fails. The message is
/usr/bin/ld: skipping incompatible /usr/lib/crti.o when searching for
/usr/lib/crti.o
/usr/bin/ld: cannot find /usr/lib/crti.o
This might be caused by the fact that I use a 64-bit machine with
a 32-bit version of FPC.
For that reason, I added the command-line option:
-Fl/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.1/32
Without this option, I get the message
/usr/bin/ld: skipping incompatible
/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.1/crtbegin.o when searching for
/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.1/crtbegin.o
/usr/bin/ld: cannot find /usr/lib/gcc/x86_64-pc-linux-gnu/4.1.1/crtbegin.o
With the option, it does find the appropriate crtbegin.o.
Therefore, I also added the command-line option
-Fl/usr/lib32
But this does not help, since /usr/lib is searched first and there if
finds the incompatible (64-bit?) version of crti.o, and fails.
How can I force the linker to look in /usr/lib32 before /usr/lib ?
When inspecting link.res, it starts out
SEARCH_DIR(/lib/)
SEARCH_DIR(/usr/lib/)
SEARCH_DIR(/usr/X11R6/lib/)
SEARCH_DIR(/usr/lib32/)
SEARCH_DIR(/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.1/32/)
SEARCH_DIR(/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.1/)
Apparently, the first three are forced 'out of nowhere', then there are
the two options from the command line, and then the one from /etc/fpc.cfg,
followed by a long list of directories named /usr/lib/fpc/* .
Where do the first three come from? Can those be (re)moved?
Thanks,
Tom
--
E-MAIL: T.Verhoeff @ TUE.NL | Dept. of Math. & Comp. Science
PHONE: +31 40 247 41 25 | Technische Universiteit Eindhoven
FAX: +31 40 247 54 04 | PO Box 513, NL-5600 MB Eindhoven
http://www.win.tue.nl/~wstomv/ | The Netherlands
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