--- ../cache/vifm-0.9/configure.ac	2017-06-18 14:31:25.000000000 +0000
+++ ./configure.ac	2017-10-03 23:29:41.348507964 +0000
@@ -145,18 +145,11 @@
 AC_CHECK_FUNC([getcwd], [], [AC_MSG_ERROR([getcwd() function not found.])])
 AC_CHECK_FUNC([getenv], [], [AC_MSG_ERROR([getenv() function not found.])])
 AC_CHECK_FUNC([geteuid], [], [AC_MSG_ERROR([geteuid() function not found.])])
-AC_CHECK_FUNC([getgrent], [], [AC_MSG_ERROR([getgrent() function not found.])])
-AC_CHECK_FUNC([getgrgid], [], [AC_MSG_ERROR([getgrgid() function not found.])])
-AC_CHECK_FUNC([getgrgid_r], [], [AC_MSG_ERROR([getgrgid_r() function not found.])])
-AC_CHECK_FUNC([getgrnam], [], [AC_MSG_ERROR([getgrnam() function not found.])])
 if test -n "$HAVE_MNTENT_H" ; then
 	AC_CHECK_FUNC([getmntent], [], [AC_MSG_ERROR([getmntent() function not found.])])
 fi
 AC_CHECK_FUNC([getpid], [], [AC_MSG_ERROR([getpid() function not found.])])
 AC_CHECK_FUNC([getppid], [], [AC_MSG_ERROR([getppid() function not found.])])
-AC_CHECK_FUNC([getpwent], [], [AC_MSG_ERROR([getpwent() function not found.])])
-AC_CHECK_FUNC([getpwnam], [], [AC_MSG_ERROR([getpwnam() function not found.])])
-AC_CHECK_FUNC([getpwuid], [], [AC_MSG_ERROR([getpwuid() function not found.])])
 AC_CHECK_FUNC([getpwuid_r], [], [AC_MSG_ERROR([getpwuid_r() function not found.])])
 AC_CHECK_FUNC([ioctl], [], [AC_MSG_ERROR([ioctl() function not found.])])
 AC_CHECK_FUNC([iswalnum], [], [AC_MSG_ERROR([iswalnum() function not found.])])
@@ -192,13 +185,11 @@
 AC_CHECK_FUNC([rmdir], [], [AC_MSG_ERROR([rmdir() function not found.])])
 AC_CHECK_FUNC([select], [], [AC_MSG_ERROR([select() function not found.])])
 AC_CHECK_FUNC([setenv], [], [AC_MSG_ERROR([setenv() function not found.])])
-AC_CHECK_FUNC([setgrent], [], [AC_MSG_ERROR([setgrent() function not found.])])
 AC_CHECK_FUNC([setlocale], [], [AC_MSG_ERROR([setlocale() function not found.])])
 if test -n "$HAVE_MNTENT_H" ; then
 	AC_CHECK_FUNC([setmntent], [], [AC_MSG_ERROR([setmntent() function not found.])])
 fi
 AC_CHECK_FUNC([setpgid], [], [AC_MSG_ERROR([setpgid() function not found.])])
-AC_CHECK_FUNC([setpwent], [], [AC_MSG_ERROR([setpwent() function not found.])])
 AC_CHECK_FUNC([setsid], [], [AC_MSG_ERROR([setsid() function not found.])])
 AC_CHECK_FUNC([setvbuf], [], [AC_MSG_ERROR([setvbuf() function not found.])])
 AC_CHECK_FUNC([sigaction], [], [AC_MSG_ERROR([sigaction() function not found.])])
@@ -371,11 +362,6 @@
 AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"])
 
 dnl Use pthread library
-AC_CHECK_LIB(pthread, pthread_create,
-	[LIBS="$LIBS -lpthread"
-	AC_CHECK_HEADER([pthread.h], [], [AC_MSG_ERROR([pthread.h header not found.])])
-	],
-	[AC_MSG_ERROR([libpthread not found])])
 
 dnl Check for all required elements in pthread.h.
 AC_CHECK_FUNC([pthread_create], [], [AC_MSG_ERROR([pthread_create() function not found.])])