Remove test for getlogin_r(); the interface is not clearly defined, at

least on Solaris (sometimes it's Unix98, sometimes it conforms to an
early draft).

Properly generate config.h.in using autoheader instead of editing it
manually; thanks, Guido!

config.h.in

@@ -215,6 +215,9 @@
 /* Define if you have the clock function.  */
 #undef HAVE_CLOCK
 
+/* Define if you have the confstr function.  */
+#undef HAVE_CONFSTR
+
 /* Define if you have the ctermid function.  */
 #undef HAVE_CTERMID
 
@@ -239,6 +242,9 @@
 /* Define if you have the fork function.  */
 #undef HAVE_FORK
 
+/* Define if you have the fpathconf function.  */
+#undef HAVE_FPATHCONF
+
 /* Define if you have the fseek64 function.  */
 #undef HAVE_FSEEK64
 
@@ -266,17 +272,14 @@
 /* Define if you have the getcwd function.  */
 #undef HAVE_GETCWD
 
-/* Define if you have the getpeername function.  */
-#undef HAVE_GETPEERNAME
-
 /* Define if you have the getgroups function.  */
 #undef HAVE_GETGROUPS
 
 /* Define if you have the getlogin function.  */
 #undef HAVE_GETLOGIN
 
-/* Define if you have the getlogin_r function.  */
-#undef HAVE_GETLOGIN_R
+/* Define if you have the getpeername function.  */
+#undef HAVE_GETPEERNAME
 
 /* Define if you have the getpgrp function.  */
 #undef HAVE_GETPGRP
@@ -293,18 +296,6 @@
 /* Define if you have the getwd function.  */
 #undef HAVE_GETWD
 
-/* Define if you have the fpathconf function.  */
-#undef HAVE_FPATHCONF
-
-/* Define if you have the pathconf function.  */
-#undef HAVE_PATHCONF
-
-/* Define if you have the confstr function.  */
-#undef HAVE_CONFSTR
-
-/* Define if you have the sysconf function.  */
-#undef HAVE_SYSCONF
-
 /* Define if you have the hypot function.  */
 #undef HAVE_HYPOT
 
@@ -329,6 +320,9 @@
 /* Define if you have the nice function.  */
 #undef HAVE_NICE
 
+/* Define if you have the pathconf function.  */
+#undef HAVE_PATHCONF
+
 /* Define if you have the pause function.  */
 #undef HAVE_PAUSE
 
@@ -395,6 +389,9 @@
 /* Define if you have the symlink function.  */
 #undef HAVE_SYMLINK
 
+/* Define if you have the sysconf function.  */
+#undef HAVE_SYSCONF
+
 /* Define if you have the tcgetpgrp function.  */
 #undef HAVE_TCGETPGRP
 

configure.in

@@ -681,8 +681,7 @@ LIBS="$LIBS -ldl -ldld"], AC_MSG_RESULT(no))
 # checks for library functions
 AC_CHECK_FUNCS(alarm chown clock confstr ctermid ctermid_r dlopen execv \
  flock fork fsync fdatasync fpathconf ftime ftruncate \
- getgroups getlogin getlogin_r getpeername getpgrp getpid getpwent \
- gettimeofday getwd \
+ getgroups getlogin 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 \