[GRASS-dev] GRASS 6.5 GEOS build fails

[Markus Neteler]

On Mon, Aug 3, 2009 at 8:19 PM, Glynn Clements<glynn at gclements.plus.com> wrote:
> Markus Neteler wrote:
>
>> > LOC_CHECK_LIBS checks for a specific symbol, so it should be
>> > straightforward to check for a symbol which is only present in 3.x.
>>
>> Something like this?
>> [neteler at localhost grass70]$ svn diff configure.in
>
>> +  LOC_CHECK_LIBS(geos,GEOSGeom_createLinearRing,GEOS,$GEOS_CFLAGS,$GEOS_LIBS,,,,)
>
> Probably:
>
>        LOC_CHECK_LIBS(geos,GEOSGeom_createLinearRing,GEOS,$GEOS_LIBS,GEOS_LIBS)

I have submitted that.

Locally it fails for me, according to config.log the following line is missing:
#include <geos_c.h>

If I extract the test manually, it find the function GEOSGeom_createLinearRing()
but complains about:

gcc -o conftest -g -Wall -Werror-implicit-function-declaration
-fno-common -mtune=nocona -m64 -minline-all-stringops
-L/usr/local/lib -lgeos -Wl,--no-undefined -Wl,--export-dynamic
-L/usr/lib64 conftest.c -lgeos
conftest.c:7: error: conflicting types for ‘GEOSGeom_createLinearRing’
/usr/local/include/geos_c.h:237: error: previous declaration of
‘GEOSGeom_createLinearRing’ was here

In /usr/local/include/geos_c.h it is
extern GEOSGeometry GEOS_DLL *GEOSGeom_createLinearRing(GEOSCoordSequence* s);

but in conftest.c it is:
char GEOSGeom_createLinearRing();

No idea how to fix the test in configure.in.

Markus