Added detection for getgroups(), fpathconf(), pathconf(),
confstr(), and sysconf().
diff --git a/configure.in b/configure.in
index 8ba972a..10785bc 100644
--- a/configure.in
+++ b/configure.in
@@ -679,12 +679,13 @@
 LIBS="$LIBS -ldl -ldld"], AC_MSG_RESULT(no))
 
 # checks for library functions
-AC_CHECK_FUNCS(alarm chown clock ctermid ctermid_r dlopen execv flock fork \
- fsync fdatasync ftime ftruncate \
- getpeername getpgrp getpid getpwent gettimeofday getwd \
- kill link lstat mkfifo mktime nice pause plock pthread_init putenv readlink \
+AC_CHECK_FUNCS(alarm chown clock confstr ctermid ctermid_r dlopen execv \
+ flock fork fsync fdatasync fpathconf ftime ftruncate \
+ getgroups getpeername getpgrp getpid getpwent gettimeofday getwd \
+ kill link lstat mkfifo mktime nice pathconf pause plock pthread_init \
+ putenv readlink \
  select setgid setlocale setuid setsid setpgid setpgrp setvbuf \
- sigaction siginterrupt sigrelse strftime strptime symlink \
+ sigaction siginterrupt sigrelse strftime strptime symlink sysconf \
  tcgetpgrp tcsetpgrp tempnam timegm times tmpfile tmpnam tmpnam_r \
  truncate uname waitpid)