gdb (test version) and program's 'read' seem to have an input clash.
Anyway, gdb used to pause and allow keyboard input.
With test fortran program:
real*4 e /0.0/
write(*,*) "Enter a real number"
write (*,*) "e =", e
$ /usr/bin/gfortran -g foo.f -o foo
$ gdb foo
GNU gdb (GDB) (Cygwin 7.11.1-1) 7.11.1
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Reading symbols from foo...done.
(gdb) b 1
Breakpoint 1 at 0x4011d9: file foo.f, line 1.
Starting program: /cygdrive/c/Users/harryr/d62/EMBL500/svn/EMBL500/foo
[New Thread 4296.0xb90]
[New Thread 4296.0x1d78]
[New Thread 4296.0x181c]
[New Thread 4296.0x1738]
Thread 1 "foo" hit Breakpoint 1, foo () at foo.f:4
4 write(*,*) "Enter a real number"
Enter a real number
5 read(*,*) e
+ Stopped gdb foo
Thread 1 "foo" received signal SIGTTIN, Stopped (tty input).
0x5bd015dc in gfortrani_fbuf_read () from /usr/bin/cyggfortran-3.dll
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