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[PATCH 1/4] DJGPP fix: Do not redirect standard input in configure scrip

From: Ralf Wildenhues
Subject: [PATCH 1/4] DJGPP fix: Do not redirect standard input in configure scripts.
Date: Sun, 13 Sep 2009 21:14:27 +0200
User-agent: Mutt/1.5.20 (2009-08-09)

* lib/autoconf/general.m4 (_AC_INIT_DEFAULTS): If $DJGPP is
nonempty, do not dup fd 0 to AS_ORIGINAL_STDIN_FD, do not close
fd 0.

* Ralf Wildenhues wrote on Sun, Sep 13, 2009 at 09:12:28PM CEST:
> -- ./script: redirection error: Bad file descriptor (EBADF) or other I/O error
> Test failures, untreated: 88 195
> Test failures due to redirection of fd 1 in configure: many,
> (worked around with patch)

This patch should be changed to use a more reliable way to detect DJGPP.

 lib/autoconf/general.m4 |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/lib/autoconf/general.m4 b/lib/autoconf/general.m4
index 4e5cddb..b82999a 100644
--- a/lib/autoconf/general.m4
+++ b/lib/autoconf/general.m4
@@ -385,7 +385,8 @@ AU_ALIAS([AC_FD_MSG], [AS_MESSAGE_FD])
-exec AS_ORIGINAL_STDIN_FD<&0 </dev/null AS_MESSAGE_FD>&1
+test -n "$DJGPP" || exec AS_ORIGINAL_STDIN_FD<&0 </dev/null
+exec AS_MESSAGE_FD>&1
 # Name of the host.
 # hostname on some systems (SVR3.2, Linux) returns a bogus exit status,

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