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      1 /* This file is part of GCC.
      2 
      3 GCC is free software; you can redistribute it and/or modify it under
      4 the terms of the GNU General Public License as published by the Free
      5 Software Foundation; either version 3, or (at your option) any later
      6 version.
      7 
      8 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      9 WARRANTY; without even the implied warranty of MERCHANTABILITY or
     10 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
     11 for more details.
     12 
     13 Under Section 7 of GPL version 3, you are granted additional
     14 permissions described in the GCC Runtime Library Exception, version
     15 3.1, as published by the Free Software Foundation.
     16 
     17 You should have received a copy of the GNU General Public License and
     18 a copy of the GCC Runtime Library Exception along with this program;
     19 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     20 <http://www.gnu.org/licenses/>.  */
     21 
     22 #ifndef _VXWORKS_VERSIONS_H
     23 #define _VXWORKS_VERSIONS_H  1
     24 
     25 /* All we need is access to the bare _WRS_VXWORKS_MAJOR/MINOR macros,
     26    exposed by version.h or already provided somehow (e.g. with a self
     27    spec for some reason).  When resorting to system headers, cheat a
     28    bit to make sure we don't drag additional header files, which can
     29    easily cause #include ordering nightmares.  */
     30 
     31 #if !defined(_WRS_VXWORKS_MAJOR)
     32 #pragma push_macro("_WRS_KERNEL")
     33 #undef _WRS_KERNEL
     34 #include <version.h>
     35 #pragma pop_macro("_WRS_KERNEL")
     36 #endif
     37 
     38 /* A lot depends on the MAJOR so we really need to make sure we have
     39    that.  MINOR is less critical and many environments don't actually
     40    define it unless it is really meaningful (e.g. 6.4 through 6.9).  */
     41 
     42 #if !defined(_WRS_VXWORKS_MAJOR)
     43 #error "_WRS_VXWORKS_MAJOR undefined"
     44 #endif
     45 
     46 #if !defined(_WRS_VXWORKS_MINOR)
     47 #define _WRS_VXWORKS_MINOR 0
     48 #endif
     49 
     50 #define _VXWORKS_MAJOR_GT(MAJOR) (_WRS_VXWORKS_MAJOR > (MAJOR))
     51 #define _VXWORKS_MAJOR_GE(MAJOR) (_WRS_VXWORKS_MAJOR >= (MAJOR))
     52 #define _VXWORKS_MAJOR_LT(MAJOR) (_WRS_VXWORKS_MAJOR < (MAJOR))
     53 #define _VXWORKS_MAJOR_LE(MAJOR) (_WRS_VXWORKS_MAJOR <= (MAJOR))
     54 #define _VXWORKS_MAJOR_EQ(MAJOR) (_WRS_VXWORKS_MAJOR == (MAJOR))
     55 
     56 #define _VXWORKS_MINOR_GT(MINOR) (_WRS_VXWORKS_MINOR > (MINOR))
     57 #define _VXWORKS_MINOR_GE(MINOR) (_WRS_VXWORKS_MINOR >= (MINOR))
     58 #define _VXWORKS_MINOR_LT(MINOR) (_WRS_VXWORKS_MINOR < (MINOR))
     59 #define _VXWORKS_MINOR_LE(MINOR) (_WRS_VXWORKS_MINOR <= (MINOR))
     60 #define _VXWORKS_MINOR_EQ(MINOR) (_WRS_VXWORKS_MINOR == (MINOR))
     61 
     62 #define _VXWORKS_PRE(MAJOR,MINOR) \
     63   (_VXWORKS_MAJOR_LT(MAJOR) \
     64    || (_VXWORKS_MAJOR_EQ(MAJOR) && _VXWORKS_MINOR_LT(MINOR)))
     65 
     66 #endif
     67