If you have built a unix tool under cygwin, how do you know what DLLs are needed when you want to give someone the executable file you have built ?
cygcheck is your friend
Here we can see 3 DLLs would be needed to accompany the iperf.exe that I have built.
1: C:\temp>\cygwin\bin\cygcheck iperf-gf.exe
2: Found: iperf-gf.exe
3: iperf-gf.exe
4: c:\cygwin\bin\cygwin1.dll
5: C:\WINDOWS\system32\ADVAPI32.DLL
6: C:\WINDOWS\system32\KERNEL32.dll
7: C:\WINDOWS\system32\ntdll.dll
8: C:\WINDOWS\system32\RPCRT4.dll
9: C:\WINDOWS\system32\Secur32.dll
10: c:\cygwin\bin\cyggcc_s-1.dll
11: c:\cygwin\bin\cygstdc++-6.dll
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ie. cygwin1.dll, cyggcc_s-1.dll and cygstdc+-6.dll
