By default, git has the "autocrlf" """feature""" enabled. This causes the files
to have CRLF line endings when checked out on windows, which in the case of
configure, causes confusing errors like:

./gcc/configure: line 14: $'\r': command not found
./gcc/configure: line 29: syntax error near unexpected token `newline'
'/gcc/configure: line 29: `     ;;

when it is invoked.

Any files damaged in this way can be fixed with:
$ git config core.autocrlf false
$ git reset
$ git checkout .

But, it's better to simply avoid this problem in the first place.
This behavior is never helpful or desired for gcc.

Signed-off-by: Peter Damianov <peter0...@disroot.org>
---
 .gitattributes | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.gitattributes b/.gitattributes
index e75bfc595bf..1e116987c98 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -8,3 +8,6 @@ ChangeLog 
whitespace=indent-with-non-tab,space-before-tab,trailing-space
 # Use together with git config diff.md.xfuncname '^\(define.*$'
 # which is run by contrib/gcc-git-customization.sh too.
 *.md diff=md
+
+# Disable lf -> crlf translation on windows.
+* -crlf
-- 
2.39.2

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