* doc/autoconf.texi (Limitations of Make): Macro names and underscore.

diff --git a/ChangeLog b/ChangeLog
index f9630975bace1bd601985ccafff2639040dda23e..af91151c988b8bcbb0809367203404d987cc5e88 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2001-07-14  Akim Demaille  <akim@epita.fr>
+
+       * doc/autoconf.texi (Limitations of Make): Macro names and underscore.
+
 2001-07-14  Akim Demaille  <akim@epita.fr>
 
        * config/config.guess, config/config.sub, config/texinfo.tex

diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index 8c60d00d32b86c4f6cd7a078ee0457107f3507e1..050c454043cb2de22e4e62afbd20d64ac2629655 100644 (file)
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -8748,6 +8748,28 @@ being listed here.  First of all, remember that since commands are
 executed by the shell, all its weaknesses are inherited@dots{}
 
 @table @asis
+@item Leading underscore in macro names
+Some Make don't support leading underscores in macro names, such as on
+NEWS-OS 4.2R.
+
+@example
+$ cat Makefile
+_am_include = #
+_am_quote =
+all:; @@echo this is test
+
+% make
+Make: Must be a separator on rules line 2.  Stop.
+
+$ cat Makefile2
+am_include = #
+am_quote =
+all:; @@echo this is test
+
+$ make -f Makefile2
+this is test
+@end example
+
 @item @code{VPATH}
 @cindex @code{VPATH}
 Don't use it!  For instance any assignment to @code{VPATH} causes Sun