You need the rrdtool and rrdtool development packages.  What they're called will depend on which version of Linux you're installing on.  I have an old Centos 7 with these packages installed:
rrdtool-devel-1.5.5-1.1.el7.x86_64
rrdtool-1.5.5-1.1.el7.x86_64

Info on the devel package says:
     Packager     : Japheth Cleaver
     URL             : http://oss.oetiker.ch/rrdtool/
     Summary     : RRDtool libraries and header files

If you have Ubuntu or some other OS, you'd be looking for something different.

Ralph Mitchell



On Fri, Nov 1, 2024 at 5:36 PM Kim Scarborough <kim@scarborough.kim> wrote:
Hi folks,

Trying to set up a Xymon 4,4 server and I'm getting these errors when it
tries to detect the latest RRDtool:

Checking for RRDtool ...
Not RRDtool 1.0.x, checking for 1.4.x
test-rrd.c: In function 'main':
test-rrd.c:28:42: error: passing argument 2 of 'rrd_flushcached' from
incompatible pointer type [-Wincompatible-pointer-types]
    28 |         result = rrd_flushcached(pcount, rrdargs); printf("%d",
result);
       |                                          ^~~~~~~
       |                                          |
       |                                          char **
In file included from test-rrd.c:3:
/usr/include/rrd.h:242:18: note: expected 'const char **' but argument
is of type 'char **'
   242 |     const char **argv);
       |     ~~~~~~~~~~~~~^~~~
test-rrd.c:32:36: error: passing argument 2 of 'rrd_graph' from
incompatible pointer type [-Wincompatible-pointer-types]
    32 |         result = rrd_graph(pcount, rrdargs, &calcpr, &xsize,
&ysize, NULL, &ymin, &ymax); printf("%d", result);
       |                                    ^~~~~~~
       |                                    |
       |                                    char **
/usr/include/rrd.h:185:5: note: expected 'const char **' but argument is
of type 'char **'
   185 |     const char **,
       |     ^~~~~~~~~~~~~
make: *** [Makefile.test-rrd:4: test-compile] Error 1
Not RRDtool 1.0.x or 1.4.x, checking for 1.2.x
test-rrd.c: In function 'main':
test-rrd.c:32:36: error: passing argument 2 of 'rrd_graph' from
incompatible pointer type [-Wincompatible-pointer-types]
    32 |         result = rrd_graph(pcount, rrdargs, &calcpr, &xsize,
&ysize, NULL, &ymin, &ymax); printf("%d", result);
       |                                    ^~~~~~~
       |                                    |
       |                                    char **
In file included from test-rrd.c:3:
/usr/include/rrd.h:185:5: note: expected 'const char **' but argument is
of type 'char **'
   185 |     const char **,
       |     ^~~~~~~~~~~~~
make: *** [Makefile.test-rrd:4: test-compile] Error 1
ERROR: Cannot compile with RRDtool.
ERROR: Linking with RRDtool fails
RRDtool include- or library-files not found.

Any thoughts or fixes?

--
Kim Scarborough
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