"no input files"使用安卓 NDK r6b 的 gcc 进行构建时

从纽约度假回来后，我在构建以前没有遇到过类似问题的项目时遇到了一个奇怪的问题
每个项目都是一个共享/静态库，或者是一个使用gcc交叉编译器（cygwin）使用NDK6b构建的Android应用程序
操作系统是Windows 7（32位），我没有安装/卸载/重新安装任何相关软件（节假日期间：）。

我已经尝试构建标准NDK示例hello-jni——同样的错误也发生了
日志：

A.User@A-User-L ~/Devel/hello-jni
$ ndk-build
Gdbserver      : [arm-linux-androideabi-4.4.3] libs/armeabi/gdbserver
Gdbsetup       : libs/armeabi/gdb.setup
Compile thumb  : hello-jni <= hello-jni.c
arm-linux-androideabi-gcc.exe: /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/jni/hello-jni.c: No such file or directory
arm-linux-androideabi-gcc.exe: no input files
/cygdrive/c/dev/Android/android-ndk-r6b/build/core/build-binary.mk:217: recipe for target `/cygdrive/e/Users/A.User.ORG/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o' failed
make: *** [/cygdrive/e/Users/A.User.ORG/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o] Error 1

冗长的日志（很抱歉被字母淹没）：

A.User@A-User-L ~/Devel/hello-jni
$ ndk-build V=1
rm -f /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/libs/armeabi/lib*.so /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/libs/armeabi-v7a/lib*.so /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/libs/x86/lib*.so
rm -f /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/libs/armeabi/gdbserver /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/libs/armeabi-v7a/gdbserver /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/libs/x86/gdbserver
rm -f /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/libs/armeabi/gdb.setup /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/libs/armeabi-v7a/gdb.setup /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/libs/x86/gdb.setup
Gdbserver      : [arm-linux-androideabi-4.4.3] libs/armeabi/gdbserver
mkdir -p /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/libs/armeabi
install -p /cygdrive/c/dev/Android/android-ndk-r6b/toolchains/arm-linux-androideabi-4.4.3/prebuilt/gdbserver /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/libs/armeabi/gdbserver
Gdbsetup       : libs/armeabi/gdb.setup
mkdir -p /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/libs/armeabi
echo "set solib-search-path /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/obj/local/armeabi" > /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/libs/armeabi/gdb.setup
echo "directory /cygdrive/c/dev/Android/android-ndk-r6b/platforms/android-8/arch-arm/usr/include /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/jni /cygdrive/c/dev/Android/android-ndk-r6b/sources/cxx-stl/system" >> /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/libs/armeabi/gdb.setup
Compile thumb  : hello-jni <= hello-jni.c
/cygdrive/c/dev/Android/android-ndk-r6b/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/bin/arm-linux-androideabi-gcc -MMD -MP -MF /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o.d.org -fpic  -ffunction-sections  -funwind-tables  -fstack-protector  -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__  -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__   -Wno-psabi -march=armv5te  -mtune=xscale  -msoft-float  -mthumb  -Os  -fomit-frame-pointer  -fno-strict-aliasing  -finline-limit=64  -I/cygdrive/e/Users/A.User.ORG/Devel/hello-jni/jni  -DANDROID  -Wa,--noexecstack  -O0 -g  -I/cygdrive/c/dev/Android/android-ndk-r6b/platforms/android-8/arch-arm/usr/include  -c   /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/jni/hello-jni.c -o /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o &&  ( if [ -f "/cygdrive/e/Users/A.User.ORG/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o.d.org" ]; then  awk -f /cygdrive/c/dev/Android/android-ndk-r6b/build/awk/convert-deps-to-cygwin.awk /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o.d.org > /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o.d &&  rm -f /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o.d.org;  fi )
/cygdrive/c/dev/Android/android-ndk-r6b/build/core/build-binary.mk:217: recipe for target `/cygdrive/e/Users/A.User.ORG/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o' failed
arm-linux-androideabi-gcc.exe: /cygdrive/e/Users/A.User.ORG/Devel/hello-jni/jni/hello-jni.c: No such file or directory
arm-linux-androideabi-gcc.exe: no input files
make: *** [/cygdrive/e/Users/A.User.ORG/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o] Error 1

Android.mk的内容相当标准：

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE    := hello-jni
LOCAL_SRC_FILES := hello-jni.c
include $(BUILD_SHARED_LIBRARY)

我知道Windows上的cygwin不支持符号链接——目录树中没有符号链接
没有残酷的防病毒软件运行，只有Windows Defender
我像去年一样以普通用户的身份运行构建（即没有凭据更改）。

可能出了什么问题？

相关问题：

• cygwin中的ndk构建错误（似乎使用类似Windows的路径是问题的根源）
• 使用Windows/Cygwin构建Android应用程序时遇到问题（好吧，我所有的源代码都是CR+LF，但我以前对此没有问题，hello-jni.c包含LF）
• 使用android ndk r5b编译ffmpeg（Windows/Unix路径的问题，但似乎是ffmpeg特有的）

---

[更新]Process Monitor显示交叉编译器试图访问"错误路径"：`E:\cygdrive\E\Users\A.User.ORG\Devel\hello jni\jni\hello jni.c`。。。我想知道这个工具以前是怎么工作的！更多信息将在我发现后立即关注：）

---

[更新#2]在另一台安装了几乎相同工具集的PC（Windows XP 32位）上（Cygwin的相同版本，Android NDK），日志看起来不同：

Compile thumb  : hello-jni <= hello-jni.c
/cygdrive/c/dev/android-ndk-r6b/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/bin/arm-linux-androideabi-gcc -MMD -MP -MF E:/Users/A.User.SURC/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o.d.org -fpic -ffunction-sections -funwind-tables -fstack-protector -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__  -Wno-psabi -march=armv5te -mtune=xscale -msoft-float -mthumb -Os -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64 -IE:/Users/A.User.SURC/Devel/hello-jni/jni -DANDROID  -Wa,--noexecstack -O0 -g -IC:/dev/android-ndk-r6b/platforms/android-8/arch-arm/usr/include -c  E:/Users/A.User.SURC/Devel/hello-jni/jni/hello-jni.c -o E:/Users/A.User.SURC/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o && ( if [ -f "E:/Users/A.User.SURC/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o.d.org" ]; then awk -f /cygdrive/c/dev/android-ndk-r6b/build/awk/convert-deps-to-cygwin.awk E:/Users/A.User.SURC/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o.d.org > E:/Users/A.User.SURC/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o.d && rm -f E:/Users/A.User.SURC/Devel/hello-jni/obj/local/armeabi/objs-debug/hello-jni/hello-jni.o.d.org; fi )

由于一些不清楚的原因，gcc在这里提供了Windows风格的路径。。。这就是进程应该如何交互
所以现在的问题是如何指示cygwin/NDK通过正确的路径？