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Date:	Fri, 7 Jun 2013 14:35:18 +0200
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Subject:	Cygwin64: mkshortcut - Segmentation fault
From:	Vasiliy <testtest_2005 AT ukr DOT net>
To:	cygwin AT cygwin DOT com

Original suspect:
~~~~~~~~~~~~
user AT host /etc/postinstall
$ cat /etc/postinstall/xinit.sh
/usr/bin/mkdir -p "$(/usr/bin/cygpath $CYGWINFORALL -P)/Cygwin-X"
/usr/bin/mkshortcut $CYGWINFORALL -P -i /usr/bin/XWin.exe -n
"Cygwin-X/XWin Server" -a "/usr/bin/bash.exe -l -c
/usr/bin/startxwin.exe" /usr/bin/run.exe

user AT host /etc/postinstall
$ env V=2 VERBOSE=2 xinit.sh
./xinit.sh: line 2: 22136 Aborted                 (core dumped)
/usr/bin/mkshortcut $CYGWINFORALL -P -i /usr/bin/XWin.exe -n
"Cygwin-X/XWin Server" -a "/usr/bin/bash.exe -l -c
/usr/bin/startxwin.exe" /usr/bin/run.exe

Real cause:
~~~~~~~~
user AT host /etc/postinstall
$ /usr/bin/mkdir -p "$(/usr/bin/cygpath $CYGWINFORALL -P)/Cygwin-X"

user AT host /etc/postinstall
$ /usr/bin/mkshortcut $CYGWINFORALL -P -i /usr/bin/XWin.exe -n
"Cygwin-X/XWin Server" -a "/usr/bin/bash.exe -l -c
/usr/bin/startxwin.exe" /usr/bin/run.exe
Aborted (core dumped)

$ cygcheck -f /usr/bin/mkshortcut.exe
cygutils-1.4.12-1

$ /bin/tar -C/ -jxvf cygutils-1.4.12-2.tar.bz2
usr/bin/cygstart.exe
usr/bin/mkshortcut.exe
usr/bin/readshortcut.exe
usr/share/man/man1/cygstart.1.gz
usr/share/man/man1/mkshortcut.1.gz
usr/share/man/man1/readshortcut.1.gz

???:
$ cygcheck -f /usr/bin/mkshortcut.exe
cygutils-1.4.12-1

$ /usr/bin/mkdir -p "$(/usr/bin/cygpath $CYGWINFORALL -P)/Cygwin-X"

$ /usr/bin/mkshortcut $CYGWINFORALL -P -i /usr/bin/XWin.exe -n
"Cygwin-X/XWin Server" -a "/usr/bin/bash.exe -l -c
/usr/bin/startxwin.exe" /usr/bin/run.exe
      4 [main] mkshortcut (9880) C:\cygwin64\bin\mkshortcut.exe: ***
fatal error - cygheap base mismatch detected - 0x0/0x61272950.
This problem is probably due to using incompatible versions of the cygwin DLL.
Search for cygwin1.dll using the Windows Start->Find/Search facility
and delete all but the most recent version.  The most recent version *should*
reside in x:\cygwin\bin, where 'x' is the drive on which you have
installed the cygwin distribution.  Rebooting is also suggested if you
are unable to find another cygwin DLL.
Segmentation fault

$ uname -a
CYGWIN_NT-6.1 Luminous 1.7.20(0.266/5/3) 2013-06-06 17:36 x86_64 Cygwin

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