From: Akim Demaille <akim@epita.fr>
Date: Mon, 21 May 2001 08:31:45 +0000 (+0000)
Subject: * automake.texi (Macros): Explain the ``AC_PROG_LEX invoked
X-Git-Tag: Release-1-4h~59
X-Git-Url: https://sourceware.org/git/?a=commitdiff_plain;h=e7024f76c162ee97654aca6b546adb56546c76c5;p=automake.git

* automake.texi (Macros): Explain the ``AC_PROG_LEX invoked
multiple times'' warning.
---

diff --git a/ChangeLog b/ChangeLog
index d7ab7053..51dae1f6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2001-05-21  Akim Demaille  <akim@epita.fr>
+
+	* automake.texi (Macros): Explain the ``AC_PROG_LEX invoked
+	multiple times'' warning.
+
 2001-05-20  Tom Tromey  <tromey@redhat.com>
 
 	* configure.in: Updated to 1.4g.
diff --git a/automake.texi b/automake.texi
index 34825b3e..a6c2d5f1 100644
--- a/automake.texi
+++ b/automake.texi
@@ -1302,6 +1302,15 @@ Programs, , Particular Program Checks, autoconf, The Autoconf Manual}),
 but uses the @code{missing} script on systems that do not have
 @code{lex}.  @samp{HP-UX 10} is one such system.
 
+Autoconf 2.50 and higher, in order to simplify the interface, includes
+the body of @code{AC_DECL_YYTEXT} in @code{AC_PROG_LEX}.  To ensure
+backward compatibility, @code{AC_DECL_YYTEXT} is nevertheless defined as
+an invocation of @code{AC_PROG_LEX}.  Since @code{AM_PROG_LEX} invokes
+both, it causes an annoying but benign warning (@code{AC_PROG_LEX}
+invoked multiple times) which you should just ignore.  In the future,
+once Automake requires Autoconf 2.50, this issue will be fixed, but the
+current compatibility with Autoconf 2.13 prevents this.
+
 @item AM_PROG_GCJ
 This macro finds the @code{gcj} program or causes an error.  It sets
 @samp{GCJ} and @samp{GCJFLAGS}.  @code{gcj} is the Java front-end to the
diff --git a/stamp-vti b/stamp-vti
index c6e131bd..0d462d85 100644
--- a/stamp-vti
+++ b/stamp-vti
@@ -1,4 +1,4 @@
-@set UPDATED 17 May 2001
+@set UPDATED 21 May 2001
 @set UPDATED-MONTH May 2001
 @set EDITION 1.4g
 @set VERSION 1.4g
diff --git a/version.texi b/version.texi
index c6e131bd..0d462d85 100644
--- a/version.texi
+++ b/version.texi
@@ -1,4 +1,4 @@
-@set UPDATED 17 May 2001
+@set UPDATED 21 May 2001
 @set UPDATED-MONTH May 2001
 @set EDITION 1.4g
 @set VERSION 1.4g