[PATCH 1/1] mingw: allow building with an MSYS2 runtime v3.x

["Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com>]

From: Johannes Schindelin <johannes.schindelin@gmx.de>

Recently the Git for Windows project started the upgrade process to
a MSYS2 runtime version based on Cygwin v3.x.

This has the very notable consequence that `$(uname -r)` no longer
reports a version starting with "2", but a version with "3".

That breaks our build, as df5218b4c30b (config.mak.uname: support MSys2,
2016-01-13) simply did not expect the version reported by `uname -r` to
depend on the underlying Cygwin version: it expected the reported
version to match the "2" in "MSYS2".

So let's invert that test case to test for *anything else* than a
version starting with "1" (for MSys). That should safeguard us for the
future, even if Cygwin ends up releasing versionsl like 314.272.65536.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 config.mak.uname | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/config.mak.uname b/config.mak.uname
index c8b0e34c31..0207e895a4 100644
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -569,7 +569,7 @@ ifneq (,$(wildcard ../THIS_IS_MSYSGIT))
 	NO_GETTEXT = YesPlease
 	COMPAT_CLFAGS += -D__USE_MINGW_ACCESS
 else
-	ifeq ($(shell expr "$(uname_R)" : '2\.'),2)
+	ifneq ($(shell expr "$(uname_R)" : '1\.'),2)
 		# MSys2
 		prefix = /usr/
 		ifeq (MINGW32,$(MSYSTEM))
-- 
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