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Subject: [Bug target/52122] [4.6/4.7/4.8 Regression] incorrect ln -s replacement for mingw like targets in configure files
Date: Tue, 12 Feb 2013 18:42:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52122

--- Comment #24 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-02-12 18:41:37 UTC ---
Can you please try the following?
echo > Makefile <<\EOF
LN_S=cp -p
ifeq (cp -p,$(LN_S))
LN_S_RECURSIVE=cp -pr
else
LN_S_RECURSIVE=$(LN_S)
endif
all:
    echo $(LN_S_RECURSIVE)
EOF
make; make LN_S='ln -s'; make LN_S='cp -p'
sed 's/LN_S=cp -p/LN_S=ln -s/' Makefile
make; make LN_S='ln -s'; make LN_S='cp -p'
Works for me just fine.  Perhaps you have buggy make?