Add LunaSVG

Android/android-ndk-r27d/build/core/check-cygwin-make.mk

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+# Copyright (C) 2010 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Check that we have a Cygwin-compatible make.
+#
+# For some reason, a lot of application developers on Windows
+# have another GNU Make installed in their path, that fails
+# miserably with our build scripts. If we can detect this use
+# case, early, we will be able to dump a human-readable error
+# message with some help to fix the issue.
+#
+
+.PHONY: all
+all:
+
+# Get the cygwin-specific path to the make executable
+# (e.g. /cygdrive/c/cygwin/usr/bin/make), then strip the
+# .exe suffix, if any.
+#
+CYGWIN_MAKE := $(shell cygpath --unix --absolute $(firstword $(MAKE)))
+CYGWIN_MAKE := $(CYGWIN_MAKE:%.exe=%)
+
+# Now try to find it on the file system, a non-cygwin compatible
+# GNU Make, even if launched from a Cygwin shell, will not
+#
+SELF_MAKE := $(strip $(wildcard $(CYGWIN_MAKE).exe))
+ifeq ($(SELF_MAKE),)
+    $(error Android NDK: $(firstword $(MAKE)) is not cygwin-compatible)
+endif
+
+# that's all