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Date: Mon, 12 Jan 2026 11:41:40 +0100
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To: cygwin AT cygwin DOT com
Subject: Not in PATH syndrome?
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Sender: "Cygwin" <cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com>

Hi,

Please, help me jog my memory ...

I have Cygwin installed in e:/Cygwin and in e:/Cygwin2; there is no
difference between the two, except for the topdir.

1. Using Cygwin in e:/Cygwin2: <= TWO

@@ mount -p   # my prompt = '@@ '
Prefix Type Flags
/drv   user binmode

PATH=/usr/bin:...

@@ PATH=/drv/e/Cygwin/bin:$PATH which --version # fails (retval 127)
@@ ls /drv/e/Cygwin/bin/which*
/drv/e/Cygwin/bin/which.exe

@@ PATH=$PATH:/drv/e/Cygwin/bin which --version
GNU which v2.29 ...

---
Of course, the same thing happens while using Cygwin in e:/Cygwin

@@ mount -p
Prefix Type Flags
/drv   user binmode

PATH=/usr/bin:...

@@ PATH=/drv/e/Cygwin2/bin:$PATH which --version # fails (retval 127)
@@ ls /drv/e/Cygwin2/bin/which*
/drv/e/Cygwin2/bin/which.exe

@@ PATH=$PATH:/drv/e/Cygwin2/bin which --version
GNU which v2.29 ...

Why does the invocation of the executable fail "if referred to outside
the current installation ..., while the necessary dll's, libraries are
present, or so it seems to me".

I seem to remember that Cygwin looks for the necessary libs in the lib
directory, that is "peer" to the bin directory ...

Hope someone can shed some light here ...

Regards Henri

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