[BUILD] Added --with-libedit option to configure

Add to the configure.ac new option:
--with-libedit - Compile with libedit support.

ChangeLog

@@ -1,3 +1,7 @@
+2006-05-23  Alexey Gladkov <legion@altlinux.org>
+
+	* Added --with-libedit option to configure.
+
 2006-03-29  Herbert Xu <herbert@gondor.apana.org.au>
 
 	* Removed useless parsebackquote flag.

configure.ac

@@ -42,5 +42,18 @@ AC_CHECK_FUNC(stat64,, [
 	AC_DEFINE(open64, open, [64-bit operations are the same as 32-bit])
 ])
 
+AC_ARG_WITH(libedit, AS_HELP_STRING(--with-libedit, [Compile with libedit support]))
+use_libedit=
+if test "$with_libedit" = "yes"; then
+	AC_CHECK_LIB(edit, history_init, [
+		AC_CHECK_HEADER([histedit.h], [use_libedit="yes"],
+				AC_MSG_ERROR(
+					[Can't find required header files.]))])
+fi
+if test "$use_libedit" != "yes"; then
+	AC_DEFINE([SMALL], 1, [Define if you build with -DSMALL])
+else
+	export LIBS="$LIBS -ledit"
+fi
 AC_CONFIG_FILES([Makefile src/Makefile])
 AC_OUTPUT

src/Makefile.am

@@ -3,7 +3,7 @@ AM_YFLAGS = -d
 COMMON_CFLAGS = -Wall
 COMMON_CPPFLAGS = \
 	-include $(top_builddir)/config.h \
-	-DBSD=1 -DSMALL -DSHELL \
+	-DBSD=1 -DSHELL \
 	-DGLOB_BROKEN -DFNMATCH_BROKEN -DIFS_BROKEN
 
 AM_CFLAGS = $(COMMON_CFLAGS)