Executable from x86_64-w64-mingw32-gcc.exe waits for input before prompt in Cygwin terminal but not Win Command Prompt

[Randy Decker <randydecker at earthlink dot net>]

# Brief problem description
# C source file  -      'printf("Test");' added as diagnostics
# Source compiles and executes in Ubuntu
# Executable compiled in cygwin terminal OK in command prompt W8.1
# - Also OK in another machine running Windows 8.1
# Same executable in cygwin term waits for input before usage hint

FROM CYGWIN64 TERMINAL
Randy@Hartford ~
$ cat countbytes.c  
/* This program counts the number of bytes in a C source file.
   The program prompts the user for a file name and then concatenates
   the ".c" extension to this name. It uses the function getc to read
   the characters.
   program from "Applications Programming in ANSI C"  by
    Hohnsonbaugh & Kalin
*/
#include<stdlib.h>
#include<stdio.h>
#include<string.h>
main( )
{
    FILE* fptr;
    char extension[] = ".c";
    int char_count;
    printf("Test");
    printf("\n\n\tFile name (NO extension):\t");
    char file_name[FILENAME_MAX];  /* defined in stdio.h*/
    scanf("%s",file_name);
    strcat(file_name,extension);
    fptr=fopen(file_name,"rb");
    for(char_count=0; getc(fptr) !=EOF; ++char_count);
    printf("\n\tByte size:\t%d", char_count);
    printf("\n");
    fclose(fptr);
    return EXIT_SUCCESS;
}

# Confirm Countbytes.exe not yet here
Randy@Hartford ~
$ ls -a
.                     .swp                          myhello.exe
.$$$                  countbytes.c                  myhello2.exe
..                    countem.exe                   myhelloworld.c
.bash_history         countem3.exe                  testc.c
.bash_profile         countemm.exe                  testit.exe
.bash_profile_temp    countemm2.exe                 testittestc.exe
.bash_profileWin.txt  countOnUbuntu.txt             testtext.txt
.bashrc               cygwinResults.txt             welcome.exe
.bashrc_ORG           Hello.c                       x86_64-w64-mingw32-gcc.exe
.inputrc              HelloFromUnix.c
.profile              HelloFromUnix-PFEvsNotepad.c
# Show alias
Randy@Hartford ~
$ alias
alias gcc='C:/cygwin64/bin/x86_64-w64-mingw32-gcc.exe'

# Compile the program
Randy@Hartford ~
$ gcc -o countbytes countbytes.c

# Verify countbytes.exe now exists
Randy@Hartford ~
$ ls
countbytes.c       cygwinResults.txt             Progress_Notes.txt
->countbytes.exe     Hello.c                       testc.c
countem.exe        HelloFromUnix.c               testit.exe
countem3.exe       HelloFromUnix-PFEvsNotepad.c  testittestc.exe
countemm.exe       myhello.exe                   testtext.txt
countemm2.exe      myhello2.exe                  welcome.exe
countOnUbuntu.txt  myhelloworld.c                x86_64-w64-mingw32-gcc.exe

# Execute the output in cygwin64 terminal.  Program waits with no output
# Until enter is pressed on a non blank line.
Randy@Hartford ~
$ ./countbytes
countbytes
Test
        File name (NO extension):
        Byte size:      865
Randy@Hartford ~
# Demonstrate same files as Cygwin64 Terminal
FROM WINDOWS 8.1 COMMAND PROMPT
 Directory of C:\cygwin64\home\Randy
[.]                            [..]
.$$$                           .bashrc
.bashrc_ORG                    .bash_history
.bash_profile                  .bash_profileWin.txt
.bash_profile_temp             .inputrc
.profile                       .swp
countbytes.c                   ->countbytes.exe
countem.exe                    countem3.exe
countemm.exe                   countemm2.exe
countOnUbuntu.txt              cygwinResults.txt
Hello.c                        HelloFromUnix-PFEvsNotepad.c
HelloFromUnix.c                myhello.exe
myhello2.exe                   myhelloworld.c
Progress_Notes.txt             testc.c
testit.exe                     testittestc.exe
testtext.txt                   welcome.exe
x86_64-w64-mingw32-gcc.exe
              31 File(s)      1,289,107 bytes
               2 Dir(s)  142,941,614,080 bytes free
# Execute the output in Windows command prompt terminal.  
# Program PRINTS "       File name (NO extension):"
# then waits Until filename is entered.
# NOTE: Execution of same code in Ubuntu 14.4 works like this.
C:\cygwin64\home\Randy>countbytes
Test
        File name (NO extension):       countbytes
        Byte size:      865
C:\cygwin64\home\Randy>

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