Nick Wellnhofer created CLOWNFISH-100:
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Summary: Support building with MSYS make
Key: CLOWNFISH-100
URL: https://issues.apache.org/jira/browse/CLOWNFISH-100
Project: Apache Lucy-Clownfish
Issue Type: Bug
Components: Charmonizer
Reporter: Nick Wellnhofer
Priority: Minor
Somewhat ironically, we still can't build the C bindings under MSYS and MSYS2,
the Unix-like shells for MinGW, using the make utilities they provide. This is
because Charmonizer invokes shell commands via C's {{system}} function which
always delegates to {{cmd.exe}} under MinGW, whether under MSYS or not. As a
result, backslashes are used as directory separators. This causes problems when
commands from the generated Makefile are executed by the MSYS shell. Building
with {{mingw32-make}} works, though.
That's what you get when writing a build system based on C instead of a command
shell!
One solution is to keep using {{cmd.exe}} and convert backslashes to forward
slashes before writing them to the Makefile. But doing this manually in
charmonizer.main is extremely cumbersome and I'm not sure whether this could be
automated reliably.
I think a better solution is to detect whether we're running in a (mostly)
POSIX-compatible environment under Windows and execute POSIX commands via
{{sh.exe}} (make {{cmd.exe}} call {{sh.exe}} to be precise).
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