package/celt051/0001-fix-gnuc-prereq.patch

   1 Fix musl build
   2
   3 musl does not define __GNUC_PREREQ. Use patch from Alpine Linux
   4 (http://git.alpinelinux.org/cgit/aports/plain/main/celt051/fix-gnuc-prereq.patch).
   5
   6 Fixes http://autobuild.buildroot.net/results/223/223ba6003bdd7e0c896455c21fa8fee943b4e716/
   7
   8 Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
   9
  10 --- celt-0.5.1.3.orig/libcelt/ecintrin.h
  11 +++ celt-0.5.1.3/libcelt/ecintrin.h
  12 @@ -52,8 +52,7 @@
  13  /*Count leading zeros.
  14    This macro should only be used for implementing ec_ilog(), if it is defined.
  15    All other code should use EC_ILOG() instead.*/
  16 -#ifdef __GNUC_PREREQ
  17 -#if __GNUC_PREREQ(3,4)
  18 +#if defined(__GNUC__) && ((__GNUC__<<16)+__GNUC_MINOR__) >= 0x304
  19  # if INT_MAX>=2147483647
  20  #  define EC_CLZ0 sizeof(unsigned)*CHAR_BIT
  21  #  define EC_CLZ(_x) (__builtin_clz(_x))
  22 @@ -61,7 +60,6 @@
  23  #  define EC_CLZ0 sizeof(unsigned long)*CHAR_BIT
  24  #  define EC_CLZ(_x) (__builtin_clzl(_x))
  25  # endif
  26 -#endif
  27  #endif
  28
  29  #if defined(EC_CLZ)