Found the following significant warnings:
  density.c:60:11: warning: passing arguments to 'simpsonm' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  density.c:284:31: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ev_atree.c:151:14: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ev_kdtre.c:206:16: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ev_kdtre.c:215:35: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ev_kdtre.c:246:13: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ev_main.c:92:14: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ev_main.c:112:12: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ev_main.c:125:14: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ev_main.c:147:14: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ev_main.c:173:14: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ev_main.c:219:14: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ev_sphere.c:45:16: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ev_trian.c:301:14: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  family.c:267:33: warning: passing arguments to 'Rf_lgammafn' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  family.c:338:41: warning: passing arguments to 'Rf_lgammafn' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  family.c:346:37: warning: passing arguments to 'Rf_lgammafn' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  family.c:395:15: warning: passing arguments to 'Rf_lgammafn' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  family.c:395:27: warning: passing arguments to 'Rf_lgammafn' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  family.c:395:37: warning: passing arguments to 'Rf_lgammafn' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  lf_fitfun.c:133:15: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  lf_fitfun.c:243:15: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  lf_nbhd.c:146:15: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  lf_nbhd.c:262:15: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  lf_vari.c:52:17: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ./mutil.h:101:51: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_icirc.c:12:6: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ./mutil.h:101:37: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_icirc.c:13:6: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_icirc.c:48:11: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_icirc.c:76:13: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_icirc.c:82:17: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_imont.c:15:13: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ./mutil.h:102:29: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_imont.c:17:6: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_imont.c:33:11: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_isimp.c:13:13: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ./mutil.h:101:25: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_isimp.c:20:6: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ./mutil.h:101:13: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_isimp.c:21:6: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ./mutil.h:103:15: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_isimp.c:22:8: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_isimp.c:44:13: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_isimp.c:67:13: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_isimp.c:90:13: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_isimp.c:120:11: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_isimp.c:163:41: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ./mutil.h:102:38: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_isphr.c:9:6: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ./mutil.h:103:26: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_isphr.c:10:8: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  ./mutil.h:102:13: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_isphr.c:13:6: warning: a function declaration without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_isphr.c:127:11: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_isphr.c:135:15: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:50:10: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:77:19: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:78:19: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:79:45: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:80:45: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:86:49: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:91:49: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:96:49: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:97:49: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:119:19: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:120:19: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:121:25: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:133:13: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:157:15: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:183:9: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_max.c:205:13: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_solve.c:54:10: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_solve.c:55:10: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_solve.c:61:15: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_solve.c:69:15: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_solve.c:89:10: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_solve.c:109:10: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_solve.c:110:15: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  m_solve.c:122:11: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  scb_cons.c:179:18: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  scb_cons.c:397:6: warning: passing arguments to 'rn3' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  scb_cons.c:397:15: warning: passing arguments to 'rn3' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  scb_cons.c:398:22: warning: passing arguments to 'sptarea' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  scb_cons.c:411:12: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  scb_cons.c:455:12: warning: passing arguments to 'monte' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  scb_cons.c:458:27: warning: passing arguments to 'integ_disc' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  scb_cons.c:459:29: warning: passing arguments to 'integ_sphere' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  scb_cons.c:462:30: warning: passing arguments to 'simpson4' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  scb_cons.c:463:30: warning: passing arguments to 'simpson4' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  scb_crit.c:37:28: warning: passing arguments to 'Rf_lgammafn' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  scb_crit.c:164:13: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  scb_crit.c:165:13: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  simul.c:21:14: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  simul.c:30:11: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  simul.c:36:15: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  simul.c:42:15: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  startlf.c:163:31: warning: passing arguments to a function without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  weight.c:236:22: warning: passing arguments to 'Rf_lgammafn' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
  weight.c:237:29: warning: passing arguments to 'Rf_lgammafn' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
See ‘/Volumes/Builds/packages/big-sur-x86_64/results/4.5/locfit.Rcheck/00install.out’ for details.
* used C compiler: ‘Apple clang version 14.0.3 (clang-1403.0.22.14.1)’
* used SDK: ‘MacOSX11.3.sdk’