package/btrfs-progs/0002-configure-refactor-always_inline-detection.patch

   1 From 1d99ae25bb1bd4879c6f20f607faf3040018ee84 Mon Sep 17 00:00:00 2001
   2 From: Brendan Heading <brendanheading@gmail.com>
   3 Date: Thu, 30 Jul 2015 15:44:52 +0100
   4 Subject: [PATCH 2/3] configure: refactor always_inline detection
   5
   6 Use configure.ac to detect the availability of the always_inline glibc
   7 macro, and define it only if it does not exist.
   8
   9 Signed-off-by: Brendan Heading <brendanheading@gmail.com>
  10 ---
  11  configure.ac | 1 +
  12  kerncompat.h | 2 +-
  13  2 files changed, 2 insertions(+), 1 deletion(-)
  14
  15 diff --git a/configure.ac b/configure.ac
  16 index e936a10..d3d81a1 100644
  17 --- a/configure.ac
  18 +++ b/configure.ac
  19 @@ -41,6 +41,7 @@ AC_PATH_PROG([RMDIR], [rmdir], [rmdir])
  20
  21  AC_CHECK_FUNCS([openat], [],
  22         [AC_MSG_ERROR([cannot find openat() function])])
  23 +AC_CHECK_DECLS([__always_inline])
  24
  25  m4_ifndef([PKG_PROG_PKG_CONFIG],
  26    [m4_fatal([Could not locate the pkg-config autoconf
  27 diff --git a/kerncompat.h b/kerncompat.h
  28 index 8318665..757b9b4 100644
  29 --- a/kerncompat.h
  30 +++ b/kerncompat.h
  31 @@ -32,7 +32,7 @@
  32
  33  #include <features.h>
  34
  35 -#ifndef __GLIBC__
  36 +#ifndef HAVE_DECL___ALWAYS_INLINE
  37  #define __always_inline __inline __attribute__ ((__always_inline__))
  38  #endif
  39
  40 --
  41 2.4.3
  42