Hello,
I was trying to compile a simple program from
http://www.geog.le.ac.uk/jwo/teaching/c_prog/12interface/index.html
and the compiler prints that the following things were missing:
inflateInit_, inflate,inflateEnd, deflateInit_,deflate,deflateEnd. I am
trying to compile it with the latest version(stable) of GRASS.
can someone help me rectify this???
thanks
venkat
VENKATARAMANAN RAJAGOPALAN wrote:
I was trying to compile a simple program from
http://www.geog.le.ac.uk/jwo/teaching/c_prog/12interface/index.html
and the compiler prints that the following things were missing:
inflateInit_, inflate,inflateEnd, deflateInit_,deflate,deflateEnd. I am
trying to compile it with the latest version(stable) of GRASS.can someone help me rectify this???
If you call any of the functions which read or write raster layers,
you need to add ${XDRLIB} to the compilation command. This variable
contains any linker switches which are required to obtain:
a) the zlib decompression functions, and
b) the XDR functions.
a) normally comprises "-lz", possibly with a "-L" switch if the
library isn't in a "standard" directory.
b) may be empty (e.g. on Linux/GNU systems, where the XDR functions
are part of libc), or it may reference the "sun", "nsl" or "rpclib"
libraries.
Also, $(MATHLIB) should not be listed as a dependency. In the case of
the example, it shouldn't be included in the definition of LIBES, but
listed separately in the compilation command, i.e.
LIBES = $(GISLIB) $(VASKLIB)
...
$(PROG): $(OBJ) $(LIBES)
$(CC) $(COMPILER_FLAGS) -o $@ $(OBJ) $(LIBES) $(CURSES) $(XDRLIB) $(MATHLIB)
Note: The Vask library also requires curses. The use of $(VASK) as a
shorthand for both of $(VASKLIB) $(CURSES) has been discontinued in
recent versions.
Only libraries which are part of GRASS should be listed as
dependencies.
[Actually, the situation has changed slightly in the most recent CVS
version; if you update from CVS, or obtain a CVS snapshot, look at an
existing Gmakefile for an example, or ask for details.]
--
Glynn Clements <glynn.clements@virgin.net>