[mrtg] Re: MRT 2.8.6, GD 1.6.3

Yozo Toda yozo at aohakobe.ipc.chiba-u.ac.jp
Tue Aug 3 17:28:56 MEST 1999

> ld.so.1: .//rateup: fatal: libgd.so.0: open failed: No such file or directory

gd-1.6.3 now installs both "archive library" libgd.a and
"shared object" libgd.so, and
rateup is compiled with the shared object libgd.so
which is linked on runtime.
you can check this situation using /usr/bin/ldd command.

solution 1: set environment variable LD_LIBRARY_PATH appropriately
            when invoking rateup (see "man ld")

              rename rateup to .rateup (or any name you like)
              edit rateup as shell script containg the following four lines
              (assuming gd library resides in /opt/gd/lib/)

                export LD_LIBRARY_PATH
                ./.rateup $*

solution 2: after configure'd and before make'ing,
            edit Makefile and add -R option to LDFLAG
            to specify the directory gd library resides.
            for example, change the line
                LDFLAGS =  -lm -L/opt/gd/lib -lgd -lpng -lz
                LDFLAGS =  -lm -L/opt/gd/lib -R/opt/gd/lib -lgd -lpng -lz
            which effects ld.so to search that directory.

solution 3: after configure'd and before make'ing,
            edit Makefile and add an option to LDFLAG
            to force ld to link the static library libgd.a.
            for example, option "-B static" is needed for Solaris /usr/ccs/ld.
            with GNU egcs compiler I can use -Xlinker option;

     LDFLAGS =  -lm -Xlinker -B -Xlinker static -L/opt/gd/lib -lgd -lpng -lz

-- yozo.

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