https://github.com/libsdl-org/autoconf/commit/aa955fdcbb0413b169c5f7137b88df97cac7cc52
From aa955fdcbb0413b169c5f7137b88df97cac7cc52 Mon Sep 17 00:00:00 2001
From: Akim Demaille <[EMAIL REDACTED]>
Date: Mon, 4 Oct 1999 12:44:50 +0000
Subject: [PATCH] 1999-10-04 Akim Demaille <akim@epita.fr>
Beware of the expansions of $n in comments.
* acgeneral.m4 (AC_OUTPUT): Changed $1 into [$1] in dnls.
---
ChangeLog | 6 ++++++
acgeneral.m4 | 8 +++++---
lib/autoconf/general.m4 | 8 +++++---
3 files changed, 16 insertions(+), 6 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index bf6372ce..c780e8d8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+1999-10-04 Akim Demaille <akim@epita.fr>
+
+ Beware of the expansions of $n in comments.
+
+ * acgeneral.m4 (AC_OUTPUT): Changed $1 into [$1] in dnls.
+
1999-10-04 Akim Demaille <akim@epita.fr>
Revert partially the previous changes: AC_CHECK_HEADERS_DIRENT is
diff --git a/acgeneral.m4 b/acgeneral.m4
index 2bcc3ffa..9b7bbc4f 100644
--- a/acgeneral.m4
+++ b/acgeneral.m4
@@ -2904,8 +2904,10 @@ Usage: $CONFIG_STATUS @BKL@OPTIONS@BKR@ FILE...
--version Print the version of Autoconf and exit
--help Display this help and exit
-dnl Output this only if there are files to instantiate.
-ifset(ifdef([AC_LIST_HEADERS], 1)$1,
+dnl Issue this section only if there were actually config files.
+dnl The following test checks if one of AC_LIST_HEADERS, the CONFIG_FILES
+dnl which are given via [$1], or AC_LIST_LINKS is set.
+ifset(ifdef([AC_LIST_HEADERS], 1)ifdef([AC_LIST_LINKS], 1)[$1],
[Files to instantiate:
ifset($1, [ Configuration files:
\$config_files
@@ -2985,7 +2987,7 @@ EOF
dnl Issue this section only if there were actually config files.
dnl The following test checks if one of AC_LIST_HEADERS, the CONFIG_FILES
-dnl which are given via $1, or AC_LIST_LINKS is set.
+dnl which are given via [$1], or AC_LIST_LINKS is set.
ifset(ifdef([AC_LIST_HEADERS], 1)ifdef([AC_LIST_LINKS], 1)[$1],
[cat >> $CONFIG_STATUS <<EOF
# If there were arguments, don't assign a default value.
diff --git a/lib/autoconf/general.m4 b/lib/autoconf/general.m4
index 2bcc3ffa..9b7bbc4f 100644
--- a/lib/autoconf/general.m4
+++ b/lib/autoconf/general.m4
@@ -2904,8 +2904,10 @@ Usage: $CONFIG_STATUS @BKL@OPTIONS@BKR@ FILE...
--version Print the version of Autoconf and exit
--help Display this help and exit
-dnl Output this only if there are files to instantiate.
-ifset(ifdef([AC_LIST_HEADERS], 1)$1,
+dnl Issue this section only if there were actually config files.
+dnl The following test checks if one of AC_LIST_HEADERS, the CONFIG_FILES
+dnl which are given via [$1], or AC_LIST_LINKS is set.
+ifset(ifdef([AC_LIST_HEADERS], 1)ifdef([AC_LIST_LINKS], 1)[$1],
[Files to instantiate:
ifset($1, [ Configuration files:
\$config_files
@@ -2985,7 +2987,7 @@ EOF
dnl Issue this section only if there were actually config files.
dnl The following test checks if one of AC_LIST_HEADERS, the CONFIG_FILES
-dnl which are given via $1, or AC_LIST_LINKS is set.
+dnl which are given via [$1], or AC_LIST_LINKS is set.
ifset(ifdef([AC_LIST_HEADERS], 1)ifdef([AC_LIST_LINKS], 1)[$1],
[cat >> $CONFIG_STATUS <<EOF
# If there were arguments, don't assign a default value.