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Changes between Version 11 and Version 12 of BuildingOnUnix

v11	v12
40	40	* When using "pre-packaged" versions of dependencies like curl, Python, or HDF4, it is often necessary to install the -dev version of the package. For instance on Ubuntu having libcurl3-gnutls is not sufficient. The libcur3-gnutls-dev package is also required. Configure may seem to succeed but later include files will come up missing during the build.
41	41
42		* check the output of configure carefully if there are any problems. The summary shows clearly what will be included in the build. The tests above can provide clues to an unexpected result.
	42	* Check the output of configure carefully if there are any problems. The summary shows clearly what will be included in the build. The tests above can provide clues to an unexpected result.
43	43
44	44	* The shared library building is pretty specific to the GNU tool chain. If you are using something different than GNU C++, then you will likely finding that the .so files isn't built successfully. You could just link against the static libraries (normally gdal/gdal.a) or you could hack LD_SHARED command in gdal/GDALmake.opt to work on your platform. For the SGI a value of ''c++ -shared -all'' is often suitable.