From:	"Tim Van Holder" <tim DOT van DOT holder AT pandora DOT be>
To:	<djgpp-workers AT delorie DOT com>
Subject:	Re: Compile gcc 3.0
Date:	Sun, 24 Jun 2001 11:23:14 +0200
Message-ID:	<CAEGKOHJKAAFPKOCLHDIGELKCEAA.tim.van.holder@pandora.be>
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> Did someone submit some changes to the libtool maintainers to fix this
> problem?  I think we should do that ASAP, since DJGPP v2.04 is still
> far away, so we will have to live with the problem for some time.
> Meanwhile, more and more GNU projects start using this version of
> libtool.

That's the problem with libtool - too many versions.  libtool 1.4 does
not have this test, but versions from the multi-language branch (as
used by the gcc and gdb/binutils trees) do.  I'll submit a patch against
CVS HEAD later today.

> I think the only reasonable way to fix that would be for libtool to
> skip this test completely for DJGPP, and use a static limit (like
> 12KB) instead.  That's because even if we fix glob to not blow away

Will do - does this seem acceptable to you?

 AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN],
 [max_cmd_len=
 # find the maximum length of command line arguments
+dnl On DJGPP, this test can blow up pretty badly due to problems in libc
+dnl (any single argument exceeding 2000 bytes causes a buffer overrun
during
+dnl glob expansion).  Even if that were fixed, the result of this check
would
+dnl be larger than it should be.  So override it here.
+case $host_os in
+  msdosdjgpp*) lt_cv_sys_max_cmd_len=12288;; # 12K is about right
+esac
 AC_MSG_CHECKING([the maximum length of command line arguments])
 AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
   i=0

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