+if (CMAKE_C_COMPILER_ID MATCHES "Clang")
+ add_compile_options(-O2 -Werror -Wall -Wno-unused-parameter -Wno-unused-function -Wno-missing-braces -ggdb -Qunused-arguments -Wno-deprecated-declarations)
+elseif(CMAKE_C_COMPILER_ID MATCHES "GNU")
+ add_compile_options(-O2 -Werror -Wall -Wno-unused-parameter -Wno-unused-function -Wno-missing-braces -ggdb -Wno-error=unknown-pragmas -Wno-deprecated-declarations)
+elseif(CMAKE_C_COMPILER_ID MATCHES "MSVC")
+ add_definitions(-D_CRT_SECURE_NO_WARNINGS)
+ add_definitions(-D_CRT_DEPRECATED_NO_WARNINGS)
+ add_definitions(-D_CRT_NONSTDC_NO_WARNINGS)
+ add_compile_options(/MP /WX /W4 /wd4100 /wd4267 /wd4206 /wd4706 /wd4244 /wd4115)
+endif()
+
+if (ASAN)
+ message(STATUS "address sanitizer enabled")
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address -g3 -fno-omit-frame-pointer")
+ set(SKIP_PERL_TESTS 1)
+endif()
+
+# DEPRECATEDIN_3_0 CMAC
+set_source_files_properties(gost_omac.c PROPERTIES COMPILE_FLAGS -Wno-error=deprecated-declarations)
+# DEPRECATEDIN_3_0 HMAC
+set_source_files_properties(gost_keyexpimp.c PROPERTIES COMPILE_FLAGS -Wno-error=deprecated-declarations)
+
+set(CMAKE_C_STANDARD 90)
+CHECK_FUNCTION_EXISTS(clock_gettime HAVE_CLOCK_GETTIME_C)
+CHECK_LIBRARY_EXISTS(rt clock_gettime "" HAVE_CLOCK_GETTIME_RT)
+if(HAVE_CLOCK_GETTIME_RT AND NOT HAVE_CLOCK_GETTIME_C)
+ set(CLOCK_GETTIME_LIB rt)
+endif()
+
+include (TestBigEndian)
+TEST_BIG_ENDIAN(IS_BIG_ENDIAN)
+if(IS_BIG_ENDIAN)
+ message(STATUS "BIG_ENDIAN")
+else()
+ message(STATUS "LITTLE_ENDIAN")
+ add_definitions(-DL_ENDIAN)
+endif()
+
+check_c_source_runs("
+ #ifdef _MSC_VER
+ # include <intrin.h>
+ #else
+ # include <x86intrin.h>
+ #endif
+ int main(void) {
+ unsigned long long x = -1, y = 1, r;
+ unsigned char cf;
+ cf = _addcarry_u64(1, x, y, &r);
+ return !(cf == 1 && r == 1);
+ }
+ " ADDCARRY_U64)
+if (ADDCARRY_U64)
+ add_definitions(-DHAVE_ADDCARRY_U64)
+endif()
+
+check_c_source_runs("
+ int main(void) {
+ char buf[16] = { 0, 1, 2 };
+ int *p = buf + 1;
+ int *q = buf + 2;
+ return (*p == *q);
+ }
+ " RELAXED_ALIGNMENT)
+if (NOT RELAXED_ALIGNMENT)
+ add_definitions(-DSTRICT_ALIGNMENT)
+endif()