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--- diana:windows:building:grib [2009-11-16 13:34:56]
dages created
+++ diana:windows:building:grib [2022-05-31 09:29:31] (current)
@@ Line 1: / Line 1: @@
-====== Building the Grib API on Windows ======
+====== Building JasPer and the Grib API on Windows ======
-Download the source tarball from http://www.ecmwf.int/products/data/software/download/grib_api.html and extract it in a convenient place.
+**XXX** is JasPer really required? ''lisbethb'', ''audunc'' say probably not.
+===== JasPer =====
+JasPer is an obnoxious little piece of software that should be avoided at all costs, but Grib uses it, so we're stuck with it.
+Download the latest source (currently 1.900.1) from http://www.ece.uvic.ca/~mdadams/jasper/ and extract it in a convenient place.
+Next, in ''src/appl/tmrdemo.c'', replace ''sleep(1)'' with ''usleep(1000)''.
+Finally, configure, build and install:
+  $ LDFLAGS=-L/c/met.no/lib CPPFLAGS=-I/c/met.no/include ./configure --prefix=/c/met.no
+  $ make all install
+  $ cp LICENSE /c/met.no/copyright/jasper.txt
+**TODO:** replace with [[http://www.openjpeg.org/|OpenJPEG]]?
+===== Grib API =====
+First, get the latest source (currently 1.8.0) from http://www.ecmwf.int/products/data/software/download/grib_api.html and extract it in a convenient place.
+Grib comes with a tool called ''grib1to2'' which is used to convert grib1 data sets to grib2.  This is a shell script, which is useless on Windows anyway, but more importantly, it is listed in ''tools/Makefile.am'' as a program rather than a script.  On Windows, automake automatically appends ''.exe'' to program names, and there is no rule to generate ''grib1to2.exe''.  The simple fix is to remove all mention of ''grib1to2'' from ''tools/Makefile.am'' (end of line 16, entire line 55, lines 65-67), then regenerate ''tools/Makefile.in'' by running the following commands in the top-level directory:
+  $ aclocal
+  $ automake
+You may have to ''chmod u+w tools/Makefile.am'' before editing it.
+Finally, configure, build and install:
+  $ LDFLAGS=-L/c/met.no/lib CPPFLAGS=-I/c/met.no/include ./configure --prefix=/c/met.no
+  $ make all install
+  $ cp AUTHORS /c/met.no/copyright/grib_api.txt
+  $ cat LICENSE >>/c/met.no/copyright/grib_api.txt
+<del>Note that Grib does not build shared libraries (not sure why, the code to do so is partly present but commented out).</del> that's OK since we've decided not to use shared libraries.
+**TODO:** check configure options
+**TODO:** check interactions between GPLv3 and licenses for other third-party components used by metlibs / diana
+Comment from SMHI.
+All fopen need to be with rb and wb, otherwise fseek doesn't work.
+GRIB_DEFINITION_PATH must be correct.