Fix : libcanfestival_unix.a not built if examples are not compiled

Problem: when building Canfestival with unix timers 'libcanfestiva_unix.a'
is built only if you build examples too.

Test case:

$ ./configure --timers=unix --can=socket --target=unix
$ make canfestival

...

no errors but 'libcanfestival_unix.a' is not built:
$ find . -name "*.a"
./src/libcanfestival.a

Changing line 90 of 'drivers/unix/Makefile.in' to:
#driver: $(OBJS)
driver: libcanfestival_$(TARGET).a

solves the problem:

$ ./configure --timers=unix --can=socket --target=unix
$ make canfestival

...

$ find . -name "*.a"
./drivers/unix/libcanfestival_unix.a
./src/libcanfestival.a

     1

#ifndef __sysdep_h__

     2

#define __sysdep_h__

     3

     4

#include "config.h"

     5

     6

#ifdef CANOPEN_BIG_ENDIAN

     7

     8

/* Warning: the argument must not update pointers, e.g. *p++ */

     9

    10

#define UNS16_LE(v)  ((((UNS16)(v) & 0xff00) >> 8) | \

    11

		      (((UNS16)(v) & 0x00ff) << 8))

    12

    13

#define UNS32_LE(v)  ((((UNS32)(v) & 0xff000000) >> 24) |	\

    14

		      (((UNS32)(v) & 0x00ff0000) >> 8)  |	\

    15

		      (((UNS32)(v) & 0x0000ff00) << 8)  |	\

    16

		      (((UNS32)(v) & 0x000000ff) << 24))

    17

    18

#else

    19

    20

#define UNS16_LE(v)  (v)

    21

    22

#define UNS32_LE(v)  (v)

    23

    24

#endif

    25

    26

#endif /* __sysdep_h__ */

    27