18.05.2016, 00:57, William Kelly Magee kirjoitti:
Hello
I am trying to build GDAL with GEOS support on RHEL 6 (64-bit) and am
getting nowhere fast!
I've been using the OGR api from gdal-1.11.1 for over a year with
excellent results and now need to use the geometry methods that are
only available with the inclusion of GEOS (else the message ERROR 6:
GEOS support not enabled").
I've built geos-3.1.0 and the set the GDAL configure option
"--with-geos" to point to "geos-config". Initially this did not work
as gdal configure was attempting to execute "geos-config" which did
not have execute permission (doing a chmod 777 on "geos-config"
resolved this).
GDAL builds fine and appears to partially recognize GEOS availability
but cannot confirm "GEOSversion" in geos_c. The following two lines
are output from gdal configure;
checking for GEOS version >= 3.1.0... yes
checking for GEOSversion in -lgeos_c... no
At this point it looked like a search issue so I've updated the PATH
and LIBRARY_PATH env vars to point to the geos "capri" directory
containing "libgeos_c.la". Still no luck. Have tried copying
libgeos_c.la to the gdal folder and /usr/local/lib but still no luck.
Going through the list I see where others have run across similar but
not the same problem.
Does anyone have any suggestions on how to resolve this?
Kelly,
I've never come across problems like this with GEOS and GDAL. If GEOS is
in usual place (/usr/local/lib for example) GDAL configure picks it up
by default.
It sounds a bit like you did not install GEOS. Did you issue "make
install" after building GEOS?
Ari
Thanks,
Kelly
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