/bin/grep: warning: stray \ before -
configure: WARNING: failed to find libyaml; compatibility disabled
lib/fy-diag.c: In function ‘fy_diag_error_atom_display’:
lib/fy-diag.c:777:28: warning: ‘cols’ may be used uninitialized [-Wmaybe-uninitialized]
  777 |                         if (tilde_start + tilde_width > cols)
      |                            ^
lib/fy-diag.c:583:19: note: ‘cols’ was declared here
  583 |         int pass, cols, min_col, max_col, max_line_count, max_line_col8, max_width;
      |                   ^~~~
lib/fy-diag.c:779:28: warning: ‘rowbufsz’ may be used uninitialized [-Wmaybe-uninitialized]
  779 |                         if ((size_t)tilde_width >= rowbufsz)
      |                            ^
lib/fy-diag.c:594:16: note: ‘rowbufsz’ was declared here
  594 |         size_t rowbufsz;
      |                ^~~~~~~~
lib/fy-composer.c:348:1: warning: conflicting types for ‘fy_composer_process_event’ due to enum/integer mismatch; have ‘enum fy_composer_return(struct fy_composer *, struct fy_event *)’ [-Wenum-int-mismatch]
  348 | fy_composer_process_event(struct fy_composer *fyc, struct fy_event *fye)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from lib/fy-parse.h:40,
                 from lib/fy-composer.c:21:
lib/fy-composer.h:51:5: note: previous declaration of ‘fy_composer_process_event’ with type ‘int(struct fy_composer *, struct fy_event *)’
   51 | int fy_composer_process_event(struct fy_composer *fyc, struct fy_event *fye);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~
libtool: warning: remember to run 'libtool --finish /usr/lib'
libtool: warning: 'libfyaml.la' has not been installed in '/usr/lib'