Pre-processing problems

Jan-Oliver Wagner jan at
Wed Mar 12 17:06:37 CET 2003

Hello Johan,

Since you are on a RedHat GNU/Linux, you might simply want
to use the RPM packages of shapelib and gen2shp:

The full story on the FreeGIS CD is here:

Else the following hints might help:

On Wed, Mar 12, 2003 at 02:35:20PM +0000, Johan Olanders wrote:
> Next I tried to install the gen2shp program. First I got loads of errors
> when executing make. After changing a path to the place where my
> shapfil.h were located in gen2shp.c (#include
> </home/johan/Greater/Preproc/shapelib-1.2.9/shapefil.h>)

You usually specify the include path in the Makefile like this:
CFLAGS=-I /home/johan/Greater/Preproc/shapelib-1.2.9
You then do not need to change the actual source code.

> I get this error message when executing the make command:
> [johan at ouse gen2shp-0.3.1]$ make
> cc  -o gen2shp -lshp gen2shp.c utils.o
> /usr/bin/ld: cannot find -lshp
> collect2: ld returned 1 exit status
> make: *** [gen2shp] Error 1

Same here: You need to specify where to find the
and adapt the CFLAGS.
Maybe this works four your setup:
CFLAGS=-I /home/johan/Greater/Preproc/shapelib-1.2.9 -L /home/johan/Greater/Preproc/shapelib-1.2.9
but this is just a guess - you should find out yourself the correct path.

Hope this helps

Jan-Oliver Wagner     

Intevation GmbH	          

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