libs/gost_engine/patches-3/020-cmake-allow-cross-compile.patch

   1 --- a/CMakeLists.txt
   2 +++ b/CMakeLists.txt
   3 @@ -64,31 +64,35 @@ else()
   4   add_definitions(-DL_ENDIAN)
   5  endif()
   6
   7 -check_c_source_runs("
   8 -  #ifdef _MSC_VER
   9 -  # include <intrin.h>
  10 -  #else
  11 -  # include <x86intrin.h>
  12 -  #endif
  13 -  int main(void) {
  14 -    unsigned long long x = -1, y = 1, r;
  15 -    unsigned char cf;
  16 -    cf = _addcarry_u64(1, x, y, &r);
  17 -    return !(cf == 1 && r == 1);
  18 -  }
  19 -  " ADDCARRY_U64)
  20 +if(NOT CMAKE_CROSSCOMPILING)
  21 +  check_c_source_runs("
  22 +    #ifdef _MSC_VER
  23 +    # include <intrin.h>
  24 +    #else
  25 +    # include <x86intrin.h>
  26 +    #endif
  27 +    int main(void) {
  28 +      unsigned long long x = -1, y = 1, r;
  29 +      unsigned char cf;
  30 +      cf = _addcarry_u64(1, x, y, &r);
  31 +      return !(cf == 1 && r == 1);
  32 +    }
  33 +    " ADDCARRY_U64)
  34 +
  35 +  check_c_source_runs("
  36 +    int main(void) {
  37 +      char buf[16] = { 0, 1, 2 };
  38 +      int *p = (int *)(buf + 1);
  39 +      int *q = (int *)(buf + 2);
  40 +      return (*p == *q);
  41 +    }
  42 +    " RELAXED_ALIGNMENT)
  43 +endif()
  44 +
  45  if (ADDCARRY_U64)
  46    add_definitions(-DHAVE_ADDCARRY_U64)
  47  endif()
  48
  49 -check_c_source_runs("
  50 -  int main(void) {
  51 -    char buf[16] = { 0, 1, 2 };
  52 -    int *p = (int *)(buf + 1);
  53 -    int *q = (int *)(buf + 2);
  54 -    return (*p == *q);
  55 -  }
  56 -  " RELAXED_ALIGNMENT)
  57  if (NOT RELAXED_ALIGNMENT)
  58    add_definitions(-DSTRICT_ALIGNMENT)
  59  endif()