[nongnu] elpa/exec-path-from-shell c2ca275d32 061/114: Clarify incompatibility with cmdproxy.exe et al

[ELPA Syncer]

branch: elpa/exec-path-from-shell
commit c2ca275d3243e8253513ced73e3ac21dc352e303
Author: Steve Purcell <steve@sanityinc.com>
Commit: Steve Purcell <steve@sanityinc.com>

    Clarify incompatibility with cmdproxy.exe et al
    
    Thanks @bbatsov
---
 README.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index f08b6cef3c..30ac00994a 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,11 @@ variables of interest, then copying them into the Emacs 
environment.
 Compatibility
 -------------
 
-If you use a non-POSIX-standard shell such as `tcsh` or `fish`, your
+At a minimum, this package assumes that your shell is at least UNIX-y: if
+`(getenv "SHELL")` evaluates to something like `".../cmdproxy.exe"`, this
+package probably isn't for you.
+
+Further, if you use a non-POSIX-standard shell such as `tcsh` or `fish`, your
 shell will be asked to execute `sh` as a subshell in order to print
 out the variables in a format which can be reliably parsed. `sh` must
 be a POSIX-compliant shell in this case.