package/mesa3d/0002-Fix-runtime-error-with-uClibc.patch

   1 Fix runtime error with uClibc
   2
   3 Patch inspired by
   4 https://www.winehq.org/pipermail/wine-bugs/2011-September/288987.html
   5 http://git.alpinelinux.org/cgit/aports/tree/main/wine/uclibc-fmaxf-fminf.patch?id=c9b491b6099eec02a835ffd05539b5c783c6c43a
   6
   7 Starting an app using mesa3d 10.5.x, Kodi for example, fails:
   8
   9 /usr/lib/kodi/kodi.bin: symbol 'fminf': can't resolve symbol in lib '/usr/lib/dri/i965_dri.so'.
  10 libGL error: unable to load driver: i965_dri.so
  11 libGL error: driver pointer missing
  12 libGL error: failed to load driver: i965
  13 libGL error: unable to load driver: swrast_dri.so
  14 libGL error: failed to load driver: swrast
  15
  16 This patch was rejected by upstream mesa3d:
  17 http://lists.freedesktop.org/archives/mesa-dev/2015-March/079436.html
  18
  19 The real fix was committed to uClibc:
  20 http://git.uclibc.org/uClibc/commit/?id=6c4538905e65ceb203f59aaa9a61728e81c6bc0a
  21
  22 Until the external toolchains do not contain this uClibc patch we keep this
  23 patch: http://lists.busybox.net/pipermail/buildroot/2015-March/123410.html
  24
  25 Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
  26 ---
  27 diff -uNr mesa-10.5.3.org/src/glsl/nir/nir_constant_expressions.c mesa-10.5.3/src/glsl/nir/nir_constant_expressions.c
  28 --- mesa-10.5.3.org/src/compiler/nir/nir_constant_expressions.c 2015-04-12 23:31:29.000000000 +0200
  29 +++ mesa-10.5.3/src/compiler/nir/nir_constant_expressions.c     2015-04-13 19:59:37.819786541 +0200
  30 @@ -48,6 +48,18 @@
  31  }
  32  #endif
  33
  34 +#ifdef __UCLIBC__
  35 +float fmaxf(float a, float b)
  36 +{
  37 +       return (a > b) ? a : b;
  38 +}
  39 +
  40 +float fminf(float a, float b)
  41 +{
  42 +       return (a < b) ? a : b;
  43 +}
  44 +#endif
  45 +
  46  /**
  47   * Evaluate one component of packSnorm4x8.
  48   */