* make pcre an option

CMakeLists.txt

@@ -7,6 +7,7 @@ cmake_minimum_required(VERSION 2.6)
 include(CTest)
 
 option(HARDENING "Enable hardening options" OFF)
+option(WITH_PCRE "Build pcre-compatible filter" ON)
 
 set(CMAKE_INSTALL_PREFIX "/usr/local")
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -pedantic -std=c99")
@@ -24,6 +25,7 @@ message(STATUS "Prefix     : ${CMAKE_INSTALL_PREFIX}")
 message(STATUS "Build type : ${CMAKE_BUILD_TYPE}")
 message(STATUS "Options:")
 message(STATUS "- HARDENING: ${HARDENING}")
+message(STATUS "- WITH_PCRE: ${WITH_PCRE}")
 message(STATUS "Components:")
 
 add_subdirectory(src)

src/filters/CMakeLists.txt

@@ -5,7 +5,7 @@ add_library("f2b_filter_preg" MODULE "preg.c")
 list(APPEND FILTERS "f2b_filter_preg")
 
 find_library(PCRE_FOUND "pcre")
-if (PCRE_FOUND)
+if (WITH_PCRE AND PCRE_FOUND)
   add_library("f2b_filter_pcre" MODULE "pcre.c")
   target_link_libraries("f2b_filter_pcre" "pcre")
   list(APPEND FILTERS "f2b_filter_pcre")

t/CMakeLists.txt

@@ -7,14 +7,16 @@ add_executable("t_matches" "t_matches.c" "${SRC_DIR}/matches.c")
 add_executable("t_ipaddr"  "t_ipaddr.c"  "${SRC_DIR}/ipaddr.c" "${SRC_DIR}/matches.c")
 add_executable("t_config_param" "t_config_param.c" "${SRC_DIR}/config.c" "${SRC_DIR}/log.c")
 
-add_executable("t_filter_preg" "t_filters.c" "${SRC_DIR}/filters/preg.c")
-add_executable("t_filter_pcre" "t_filters.c" "${SRC_DIR}/filters/pcre.c")
-target_link_libraries("t_filter_pcre" "pcre")
-
 add_test("tests/f2b_logfile_*" "t_logfile")
 add_test("tests/f2b_matches_*" "t_matches")
 add_test("tests/f2b_ipaddr_*"  "t_ipaddr")
 add_test("tests/f2b_config_param*" "t_config_param")
 
+add_executable("t_filter_preg" "t_filters.c" "${SRC_DIR}/filters/preg.c")
 add_test("tests/filter/preg"   "t_filter_preg")
+
+if (WITH_PCRE)
 add_test("tests/filter/pcre"   "t_filter_pcre")
+add_executable("t_filter_pcre" "t_filters.c" "${SRC_DIR}/filters/pcre.c")
+target_link_libraries("t_filter_pcre" "pcre")
+endif ()