cygwin编译c++程序不成功

[Mr. Code]

源代码：

#include <iostream>
#include <stdio.h>
using namespace std;

int main() {
	cout << "!!!Hello World!!!" << endl; // prints !!!Hello World!!!
	return 0;
}

在cygwin下编译，

$ g++ -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include/c++" -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include/c++/i686-pc-cygwin" -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include/c++/backward" -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include" -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include-fixed" -I"E:\cygwin64/usr/include" -I"E:\cygwin64/usr/include/w32api" -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"src/hello1.d" -MT"src/hello1.d" -o "src/hello1.o" "../src/hello1.cpp"
E:/cygwin64/lib/gcc/x86_64-pc-cygwin/4.9.3/cc1plus.exe: error while loading shared libraries: cygisl-10.dll: cannot open shared object file: No such file or directory

出现error while loading shared libraries: cygisl-10.dll: cannot open shared object file: No such file or directory错误，搜索cygisl-10.dll文件，在E:\cygwin64\usr\i686-pc-cygwin\sys-root\usr\bin中找到，增加
-L"E:\cygwin64\usr\i686-pc-cygwin\sys-root\usr\bin"
错误依然。
求解决方法。

[「已注销」]

放到相同目录下

[Mr. Code]

我把E:\cygwin64\usr\i686-pc-cygwin\sys-root\usr\bin这个目录放到了PATH环境变量下，没有这个错误了，但是还有另一个错误，

make all 
Building file: ../src/hello1.cpp
Invoking: Cygwin C++ Compiler
g++ -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include/c++" -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include/c++/i686-pc-cygwin" -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include/c++/backward" -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include" -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include-fixed" -I"E:\cygwin64/usr/include" -I"E:\cygwin64/usr/include/w32api" -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"src/hello1.d" -MT"src/hello1.d" -o "src/hello1.o" "../src/hello1.cpp"
src/subdir.mk:18: recipe for target 'src/hello1.o' failed
make: *** [src/hello1.o] Error 1

我搜索了一下hello1.o没有，hello1.obj就有，但是文件不让编辑，编辑了，一build又变了回来，怎么办？ subdir.mk是eclipse自己产生的。如下：

################################################################################
# Automatically-generated file. Do not edit!
################################################################################

# Add inputs and outputs from these tool invocations to the build variables 
CPP_SRCS += \
../src/hello1.cpp 

OBJS += \
./src/hello1.o 

CPP_DEPS += \
./src/hello1.d 


# Each subdirectory must supply rules for building sources it contributes
src/%.o: ../src/%.cpp
	@echo 'Building file: $<'
	@echo 'Invoking: Cygwin C++ Compiler'
	g++ -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include/c++" -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include/c++/i686-pc-cygwin" -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include/c++/backward" -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include" -I"E:\cygwin64/lib/gcc/i686-pc-cygwin/4.9.2/include-fixed" -I"E:\cygwin64/usr/include" -I"E:\cygwin64/usr/include/w32api" -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"$(@:%.o=%.d)" -MT"$(@:%.o=%.d)" -o "$@" "$<"
	@echo 'Finished building: $<'
	@echo ' '