replace libeditline with libedit

lib/libedit/acinclude.m4

@@ -0,0 +1,85 @@
+
+dnl
+dnl read lib version from file (and trim trailing newline)
+dnl
+define([EL_RELEASE], [patsubst(esyscmd([. src/shlib_version; echo $major.$minor]), [
+])])
+
+dnl
+dnl read cvsexport timestamp from file (and trim trailing newline)
+dnl
+define([EL_TIMESTAMP], [patsubst(esyscmd([date +"%Y%m%d"]), [
+])])
+
+
+dnl
+dnl NetBSD use the -mdoc macro package for manpages, but e.g.
+dnl AIX and Solaris only support the -man package. 
+dnl
+AC_DEFUN([EL_MANTYPE],
+[
+   MANTYPE=
+   TestPath="/usr/bin${PATH_SEPARATOR}/usr/ucb"
+   AC_PATH_PROGS(NROFF, nroff awf, /bin/false, $TestPath)
+   if ${NROFF} -mdoc ${srcdir}/doc/editrc.5.roff >/dev/null 2>&1; then
+      MANTYPE=mdoc
+   fi
+   AC_SUBST(MANTYPE)
+])
+
+
+dnl
+dnl Check if getpwnam_r and getpwuid_r are POSIX.1 compatible
+dnl POSIX draft version returns 'struct passwd *' (used on Solaris)
+dnl NOTE: getpwent_r is not POSIX so we always use getpwent
+dnl
+AC_DEFUN([EL_GETPW_R_POSIX],
+[
+   AC_MSG_CHECKING([whether getpwnam_r and getpwuid_r are posix like])
+      # The prototype for the POSIX version is:
+      # int getpwnam_r(char *, struct passwd *, char *, size_t, struct passwd **)
+      # int getpwuid_r(uid_t, struct passwd *, char *, size_t, struct passwd **);
+   AC_TRY_LINK([#include <stdlib.h>
+                #include <sys/types.h>
+                #include <pwd.h>],
+               [getpwnam_r(NULL, NULL, NULL, (size_t)0, NULL);
+                getpwuid_r((uid_t)0, NULL, NULL, (size_t)0, NULL);],
+      [AC_DEFINE([HAVE_GETPW_R_POSIX], 1, [Define to 1 if you have getpwnam_r and getpwuid_r that are POSIX.1 compatible.]) 
+       AC_MSG_RESULT(yes)],
+      [AC_MSG_RESULT(no)])
+])
+
+AC_DEFUN([EL_GETPW_R_DRAFT],
+[
+   AC_MSG_CHECKING([whether getpwnam_r and getpwuid_r are posix _draft_ like])
+      # The prototype for the POSIX draft version is:
+      # struct passwd *getpwuid_r(uid_t, struct passwd *, char *, int);
+      # struct passwd *getpwnam_r(char *, struct passwd *,  char *, int);
+   AC_TRY_LINK([#include <stdlib.h>
+                #include <sys/types.h>
+                #include <pwd.h>],
+               [getpwnam_r(NULL, NULL, NULL, (size_t)0);
+                getpwuid_r((uid_t)0, NULL, NULL, (size_t)0);],
+      [AC_DEFINE([HAVE_GETPW_R_DRAFT], 1, [Define to 1 if you have getpwnam_r and getpwuid_r that are draft POSIX.1 versions.]) 
+       AC_MSG_RESULT(yes)],
+      [AC_MSG_RESULT(no)])
+])
+
+
+dnl
+dnl use option --enable-widec to turn on use of wide-character support
+dnl
+AC_DEFUN([EL_ENABLE_WIDEC],
+[
+   AC_MSG_CHECKING(if you want wide-character code)
+   AC_ARG_ENABLE(widec,
+      [  --enable-widec          compile with wide-char/UTF-8 code],
+      [with_widec=$enableval],
+      [with_widec=no])
+   AC_MSG_RESULT($with_widec)
+   if test "$with_widec" = yes ; then
+      AC_DEFINE(WIDECHAR, 1, [Define to 1 if you want wide-character code])
+   fi
+   AM_CONDITIONAL([WIDECHAR], [test "$with_widec" = yes])
+])
+