compat/os/linux.h

   1 /*
   2  * Copyright (C) 1996-2015 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 #ifndef SQUID_OS_LINUX_H
  10 #define SQUID_OS_LINUX_H
  11
  12 #if _SQUID_LINUX_
  13
  14 /****************************************************************************
  15  *--------------------------------------------------------------------------*
  16  * DO *NOT* MAKE ANY CHANGES below here unless you know what you're doing...*
  17  *--------------------------------------------------------------------------*
  18  ****************************************************************************/
  19
  20 #if USE_ASYNC_IO
  21 #define _SQUID_LINUX_THREADS_
  22 #endif
  23
  24 /*
  25  * res_init() is just a macro re-definition of __res_init on Linux (Debian/Ubuntu)
  26  */
  27 #if !defined(HAVE_RES_INIT) && defined(HAVE___RES_INIT) && !defined(res_init)
  28 #define res_init  __res_init
  29 #define HAVE_RES_INIT  HAVE___RES_INIT
  30 #endif
  31
  32 /*
  33  * sys/capability.h is only needed in Linux apparently.
  34  *
  35  * HACK: LIBCAP_BROKEN Ugly glue to get around linux header madness colliding with glibc
  36  */
  37 #if HAVE_SYS_CAPABILITY_H
  38
  39 #if LIBCAP_BROKEN
  40 #undef _POSIX_SOURCE
  41 #define _LINUX_TYPES_H
  42 #define _LINUX_FS_H
  43 typedef uint32_t __u32;
  44 #endif
  45
  46 #include <sys/capability.h>
  47 #endif /* HAVE_SYS_CAPABILITY_H */
  48
  49 /*
  50  * glob.h is provided by GNU on Linux and contains some unavoidable preprocessor
  51  * logic errors in its 64-bit definitions which are hit by non-GCC compilers.
  52  *
  53  * #if __USE_FILE_OFFSET64 && __GNUC__ < 2
  54  *  # define glob glob64
  55  * #endif
  56  * #if !defined __USE_FILE_OFFSET64 || __GNUC__ < 2
  57  * extern "C" glob(...);
  58  * #endif
  59  * extern "C" glob64(...);
  60  *
  61  * ... and multiple "C" definitions of glob64 refuse to compile.
  62  * Because __GNUC__ being undefined equates to 0 and (0 < 2)
  63  */
  64 #if __USE_FILE_OFFSET64 && __GNUC__ < 2
  65 #if HAVE_GLOB_H
  66 #undef HAVE_GLOB_H
  67 #endif
  68 #if HAVE_GLOB
  69 #undef HAVE_GLOB
  70 #endif
  71 #endif
  72
  73 #endif /* _SQUID_LINUX_ */
  74 #endif /* SQUID_OS_LINUX_H */
  75