Re: GNU Make 4.4.0.91 on openSUSE Leap 15.2

[Bruno Haible]

Paul Smith wrote:
> In the abstract it would be nice to have configure detect the bug in
> glibc and use our local version of glob on those systems, but writing a
> runtime test for the actual bug would be "interesting".

gnulib/m4/glob.m4 contains a test for this bug:

      AC_CACHE_CHECK([whether glob lists broken symlinks],
                     [gl_cv_glob_lists_symlinks],
        [if test $cross_compiling != yes; then
           if ln -s conf-doesntexist conf$$-globtest 2>/dev/null; then
             gl_cv_glob_lists_symlinks=maybe
           else
             # If we can't make a symlink, then we cannot test this issue.  Be
             # pessimistic about this.
             gl_cv_glob_lists_symlinks=no
           fi
           if test $gl_cv_glob_lists_symlinks = maybe; then
             AC_RUN_IFELSE(
               [AC_LANG_PROGRAM(
                  [[#include <stddef.h>
                    #include <glob.h>]],
                  [[glob_t found;
                    if (glob ("conf*-globtest", 0, NULL, &found) == 
GLOB_NOMATCH)
                      return 1;
                    globfree (&found);
                  ]])],
               [gl_cv_glob_lists_symlinks=yes],
               [gl_cv_glob_lists_symlinks=no],
               [dnl We don't get here.
                :
               ])
           fi
           rm -f conf$$-globtest
         else
           gl_cv_glob_lists_symlinks="$gl_cross_guess_normal"
         fi
        ])