Hyperscan is available for x86_64 only so far

CMakeLists.txt

@@ -55,8 +55,16 @@ OPTION(ENABLE_CLANG_PLUGIN "Enable clang static analysing plugin [default: OFF]"
 OPTION(ENABLE_HYPERSCAN    "Enable hyperscan for fast regexp processing [default: OFF]" OFF)
 
 
-IF (ENABLE_HYPERSCAN MATCHES "ON")
-	ENABLE_LANGUAGE(CXX)
+INCLUDE(FindArch.cmake)
+TARGET_ARCHITECTURE(ARCH)
+
+IF ("${ARCH}" STREQUAL "x86_64")
+	IF (ENABLE_HYPERSCAN MATCHES "ON")
+		ENABLE_LANGUAGE(CXX)
+	ENDIF()
+ELSE()
+	MESSAGE(STATUS "Hyperscan support is possible only for x86_64 architecture")
+	SET(ENABLE_HYPERSCAN "OFF")
 ENDIF()
 # Build optimized code for following CPU (default i386)
 #SET(CPU_TUNE               "i686")

src/libcryptobox/CMakeLists.txt

@@ -1,9 +1,8 @@
-INCLUDE(FindArch.cmake)
 INCLUDE(AsmOp.cmake)
 
 TARGET_ARCHITECTURE(ARCH)
 
-SET(CHACHASRC ${CMAKE_CURRENT_SOURCE_DIR}/chacha20/chacha.c 
+SET(CHACHASRC ${CMAKE_CURRENT_SOURCE_DIR}/chacha20/chacha.c
 	${CMAKE_CURRENT_SOURCE_DIR}/chacha20/ref.c)
 SET(POLYSRC ${CMAKE_CURRENT_SOURCE_DIR}/poly1305/poly1305.c)
 SET(SIPHASHSRC ${CMAKE_CURRENT_SOURCE_DIR}/siphash/siphash.c
@@ -86,4 +85,4 @@ INCLUDE_DIRECTORIES("${CMAKE_CURRENT_BINARY_DIR}")
 SET(LIBCRYPTOBOXSRC ${CMAKE_CURRENT_SOURCE_DIR}/cryptobox.c)
 
 SET(RSPAMD_CRYPTOBOX ${LIBCRYPTOBOXSRC} ${CHACHASRC} ${POLYSRC} ${SIPHASHSRC}
-	${CURVESRC} ${BLAKE2SRC} PARENT_SCOPE)
+	${CURVESRC} ${BLAKE2SRC} PARENT_SCOPE)