[Octave-bug-tracker] [bug #60316] New warnings, errors showing up during compilation

[Markus Mützel]

Follow-up Comment #19, bug #60316 (project octave):

In their test function, gnulib has the following:
https://git.savannah.gnu.org/cgit/gnulib.git/tree/tests/test-intprops.c?id=5ccd7e60ad475b481144437c8e4037a56f32e4a0#n19

/* Tell gcc not to warn about the long expressions that the overflow
   macros expand to, or about the (X < 0) expressions.  */
#if 4 < __GNUC__ + (3 <= __GNUC_MINOR__)
# pragma GCC diagnostic ignored "-Woverlength-strings"
# pragma GCC diagnostic ignored "-Wtype-limits"

/* Work around a bug in GCC 6.1 and earlier; see:
   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68971  */
# pragma GCC diagnostic ignored "-Woverflow"

#endif


I'm not exactly sure why they guard those pragmas with that particular
condition. Maybe older gcc version (or other compilers) fail to understand
them? Do we still support gcc 4.3 or older?
If we would like to make the change even more specific, we could also limit to
gcc until version 6.1.


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