[Slackbuilds-users] lbench

[David Chmelik]

The lbench benchmark program is one SlackBuild that doesn't compile for 
me on Slackware 15 or 15+current from SBo-git.  Here's what it says

    lbench-3.7/Makefile
    g++ -O2 -fPIC -Wall -g -rdynamic -O0 -Wno-format-truncation -c
    `pkg-config --cflags gtk+-3.0`  -o lbench.o lbench-3.7.cc
    lbench-3.7.cc: In function ‘void* matrix_thread(void*)’:
    lbench-3.7.cc:1424:23: warning: empty parentheses were disambiguated
    as a function declaration [-Wvexing-parse]
      1424 |    int matrix_function();
           |                       ^~
    lbench-3.7.cc:1424:23: note: remove parentheses to
    default-initialize a variable
      1424 |    int matrix_function();
           |                       ^~
           |                       --
    lbench-3.7.cc:1424:23: note: or replace parentheses with braces to
    value-initialize a variable
    lbench-3.7.cc: In function ‘void* linpack_thread(void*)’:
    lbench-3.7.cc:2189:27: warning: empty parentheses were disambiguated
    as a function declaration [-Wvexing-parse]
      2189 |    double linpack_function();
           |                           ^~
    lbench-3.7.cc:2189:27: note: remove parentheses to
    default-initialize a variable
      2189 |    double linpack_function();
           |                           ^~
           |                           --
    lbench-3.7.cc:2189:27: note: or replace parentheses with braces to
    value-initialize a variable
    g++ -O2 -fPIC -Wall -g -rdynamic -O0 -Wno-format-truncation -c
    `pkg-config --cflags gtk+-3.0` zfuncs.cc    \
               -D PREFIX=\"/usr\" -D DOCDIR=\"/usr/doc/lbench-3.7\"
    zfuncs.cc: In function ‘int zinitapp(const char*, const char*)’:
    zfuncs.cc:5001:9: warning: ‘int ftime(timeb*)’ is deprecated: Use
    gettimeofday or clock_gettime instead [-Wdeprecated-declarations]
      5001 | ftime(&startime); //  app startup time
           |    ~~~~~^~~~~~~~~~~
    In file included from zfuncs.h:24,
                      from zfuncs.cc:23:
    /usr/include/sys/timeb.h:29:12: note: declared here
        29 | extern int ftime (struct timeb *__timebuf)
           |            ^~~~~
    zfuncs.cc: At global scope:
    zfuncs.cc:10935:6: error: ambiguating new declaration of ‘void
    popup_report_timeout(zdialog*)’
    10935 | void popup_report_timeout(zdialog *zd)
           |      ^~~~~~~~~~~~~~~~~~~~
    zfuncs.cc:10921:8: note: old declaration ‘int
    popup_report_timeout(zdialog*)’
    10921 |    int popup_report_timeout(zdialog *zd);
           |        ^~~~~~~~~~~~~~~~~~~~
    make: *** [Makefile:34: zfuncs.o] Error 1

     I hope it will be updated but I also hope to see a version that 
works on X/TWM, not only Wayland/GNOME.  The lbench author told me GNOME 
might take up 1% or 2% CPU system resources, but for me, that's too 
much.  When I run benchmarks I turn off all but certain hardware & 
logging daemons... I guess because I'm more interested in mathematics 
than engineering, that I want an accurate benchmark--to five numerical 
places (as in science and professional engineering) not an approximation 
to 98%.
     Does the maintainer use this listserv, and what do they or anyone 
think about that?