Add pcre2 detection

CMakeLists.txt

@@ -54,6 +54,7 @@ OPTION(ENABLE_SNOWBALL     "Enable snowball stemmer [default: ON]"
 OPTION(ENABLE_CLANG_PLUGIN "Enable clang static analysing plugin [default: OFF]" OFF)
 OPTION(ENABLE_HYPERSCAN    "Enable hyperscan for fast regexp processing [default: OFF]" OFF)
 OPTION(ENABLE_FANN         "Enable fann for neural network plugin [default: OFF]" OFF)
+OPTION(ENABLE_PCRE2        "Enable pcre2 instead of pcre  [default: OFF]"         OFF)
 
 INCLUDE(FindArch.cmake)
 TARGET_ARCHITECTURE(ARCH)
@@ -66,6 +67,12 @@ ELSE()
 	MESSAGE(STATUS "Hyperscan support is possible only for x86_64 architecture")
 	SET(ENABLE_HYPERSCAN "OFF")
 ENDIF()
+
+IF(ENABLE_PCRE2 MATCHES "ON")
+	SET(WITH_PCRE2 1)
+	# For utf8 API
+	LIST(APPEND CMAKE_REQUIRED_DEFINITIONS "-DPCRE2_CODE_UNIT_WIDTH=8")
+ENDIF()
 # Build optimized code for following CPU (default i386)
 #SET(CPU_TUNE               "i686")
 
@@ -623,8 +630,14 @@ ENDIF(ENABLE_LUAJIT MATCHES "ON")
 
 ProcessPackage(GLIB2 LIBRARY glib-2.0 INCLUDE glib.h INCLUDE_SUFFIXES include/glib
 	ROOT ${GLIB_ROOT_DIR} MODULES glib-2.0>=2.28)
-ProcessPackage(PCRE LIBRARY pcre INCLUDE pcre.h INCLUDE_SUFFIXES include/pcre
-	ROOT ${PCRE_ROOT_DIR} MODULES pcre libpcre pcre3 libpcre3)
+
+IF(ENABLE_PCRE2 MATCHES "ON")
+	ProcessPackage(PCRE LIBRARY pcre2 INCLUDE pcre2.h INCLUDE_SUFFIXES include/pcre2
+		ROOT ${PCRE_ROOT_DIR} MODULES pcre2 libpcre2 libpcre2-8)
+ELSE()
+	ProcessPackage(PCRE LIBRARY pcre INCLUDE pcre.h INCLUDE_SUFFIXES include/pcre
+		ROOT ${PCRE_ROOT_DIR} MODULES pcre libpcre pcre3 libpcre3)
+ENDIF()
 ProcessPackage(GMIME LIBRARY gmime-2.6 gmime-2.4 gmime-2.2 gmime-2 INCLUDE gmime.h INCLUDE_SUFFIXES include/gmime
 	ROOT ${GMIME_ROOT_DIR} MODULES gmime-2.6 gmime-2.4 gmime-2.0)
 ProcessPackage(LIBEVENT LIBRARY event INCLUDE event.h INCLUDE_SUFFIXES include/event
@@ -660,13 +673,6 @@ IF(GMIME2_VERSION VERSION_GREATER "2.4.0" OR NOT GMIME2_VERSION)
 	SET(GMIME24 1)
 ENDIF()
 
-LIST(APPEND CMAKE_REQUIRED_INCLUDES "${PCRE_INCLUDE}")
-IF(PCRE_LIBRARY_PATH)
-	SET(CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES};-L${PCRE_LIBRARY_PATH};-lpcre")
-ELSE(PCRE_LIBRARY_PATH)
-	SET(CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES};-lpcre")
-ENDIF(PCRE_LIBRARY_PATH)
-
 IF(ENABLE_HIREDIS MATCHES "ON")
 	ADD_SUBDIRECTORY(contrib/hiredis)
 	SET(WITH_HIREDIS 1)
@@ -872,12 +878,29 @@ CHECK_SYMBOL_EXISTS(getaddrinfo "sys/types.h;sys/socket.h;netdb.h" HAVE_GETADDRI
 CHECK_SYMBOL_EXISTS(sched_yield "sched.h" HAVE_SCHED_YIELD)
 CHECK_SYMBOL_EXISTS(__get_cpuid "cpuid.h" HAVE_GET_CPUID)
 CHECK_SYMBOL_EXISTS(nftw "sys/types.h;ftw.h" HAVE_NFTW)
-CHECK_SYMBOL_EXISTS(PCRE_CONFIG_JIT "pcre.h" HAVE_PCRE_JIT)
+IF(ENABLE_PCRE2 MATCHES "ON")
+	LIST(APPEND CMAKE_REQUIRED_INCLUDES "${PCRE_INCLUDE}")
+	CHECK_SYMBOL_EXISTS(PCRE2_CONFIG_JIT "pcre2.h" HAVE_PCRE_JIT)
+ELSE()
+	LIST(APPEND CMAKE_REQUIRED_INCLUDES "${PCRE_INCLUDE}")
+	CHECK_SYMBOL_EXISTS(PCRE_CONFIG_JIT "pcre.h" HAVE_PCRE_JIT)
+ENDIF()
 CHECK_SYMBOL_EXISTS(SOCK_SEQPACKET "sys/types.h;sys/socket.h" HAVE_SOCK_SEQPACKET)
 CHECK_SYMBOL_EXISTS(I_SETSIG "sys/types.h;sys/ioctl.h" HAVE_SETSIG)
 CHECK_SYMBOL_EXISTS(O_ASYNC "sys/types.h;sys/fcntl.h" HAVE_OASYNC)
 CHECK_SYMBOL_EXISTS(O_NOFOLLOW "sys/types.h;sys/fcntl.h" HAVE_ONOFOLLOW)
 
+IF(ENABLE_PCRE2 MATCHES "ON")
+	IF(HAVE_PCRE_JIT)
+		SET(HAVE_PCRE_JIT_FAST 1)
+	ENDIF()
+ELSE()
+	LIST(APPEND CMAKE_REQUIRED_INCLUDES "${PCRE_INCLUDE}")
+	IF(PCRE_LIBRARY_PATH)
+		SET(CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES};-L${PCRE_LIBRARY_PATH};${PCRE_LIBRARY}")
+	ELSE(PCRE_LIBRARY_PATH)
+		SET(CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES};-lpcre")
+	ENDIF(PCRE_LIBRARY_PATH)
 # Some PCRE implementations are lacking of pcre_jit_exec fast path
 SET(_PCRE_FAST_TEST "
 #include \"pcre.h\"
@@ -898,13 +921,13 @@ int main (void)
 	return rc;
 }
 ")
-
 CHECK_C_SOURCE_COMPILES("${_PCRE_FAST_TEST}" HAVE_PCRE_JIT_FAST)
 IF(HAVE_PCRE_JIT_FAST)
 	MESSAGE(STATUS "pcre_jit_exec is supported")
 ELSE(HAVE_PCRE_JIT_FAST)
 	MESSAGE(STATUS "pcre_jit_exec is -NOT- supported")
 ENDIF(HAVE_PCRE_JIT_FAST)
+ENDIF()
 
 FILE(WRITE ${CMAKE_BINARY_DIR}/pthread_setpshared.c "
 #include <pthread.h>

config.h.in

@@ -124,6 +124,7 @@
 #cmakedefine WITH_HYPERSCAN      1
 #cmakedefine WITH_JUDY           1
 #cmakedefine WITH_LUA            1
+#cmakedefine WITH_PCRE2          1
 #cmakedefine WITH_PROFILER       1
 #cmakedefine WITH_SNOWBALL       1
 #cmakedefine WITH_SQLITE         1