See below

On 11/2/24 02:35, Kim Scarborough wrote:

No distribution, it's Linux from scratch. RRDtool version is the latest version, 1.9.0.

If 1.7.2 works, I can downgrade to that.

On 11/2/24 12:34 AM, Tom Schmidt wrote:

...

It would help to know what Linux distribution and version you have installed and what version of rrdtool package (including the development package).  I have a current Rocky Linux 9.4 installation that compiled and is running Xymon 4.4.0-alpha1 using rrdtool 1.7.2.

rpm -qa | grep rrdtool

rrdtool-1.7.2-21.el9.x86_64 rrdtool-perl-1.7.2-21.el9.x86_64 rrdtool-devel-1.7.2-21.el9.x86_64

Tom

On Fri, Nov 1, 2024 at 3:36 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?

I've had a bunch of these errors after updating my Gentoo setup to use gcc 14.

The issue here isn't rrd, but the test that is used in xymon to detect the presence of rrdtool's installation.

The file itself is in the build folder, test-rrd.c

As it does look like you have rrd installed, you could replace the int main to simply return 0.

Changing

char* rrdargs

to

const char* rrdargs

also seems to work.

The next stumbling block looks like more of those errors in a few files.

I've naively added a (const char **) besides all parameters that complain in the error, but I have no idea whatsoever if it is a good fix. But it does compile.

I've attached the patch, not tested beyond "it compiles."