cmake REFACTOR update findpcre2 module
diff --git a/CMakeModules/FindPCRE2.cmake b/CMakeModules/FindPCRE2.cmake
index 8f60daa..65d6dc6 100644
--- a/CMakeModules/FindPCRE2.cmake
+++ b/CMakeModules/FindPCRE2.cmake
@@ -4,27 +4,49 @@
# PCRE2_INCLUDE_DIRS - where to find pcre.h, etc.
# PCRE2_LIBRARIES - List of libraries when using pcre.
# PCRE2_FOUND - True if pcre found.
+include(FindPackageHandleStandardArgs)
-# Look for the header file.
-FIND_PATH(PCRE2_INCLUDE_DIR pcre2.h)
+if(PCRE2_LIBRARIES AND PCRE2_INCLUDE_DIRS)
+ # in cache already
+ set(PCRE2_FOUND TRUE)
+else()
+ find_path(PCRE2_INCLUDE_DIR
+ NAMES
+ pcre2.h
+ PATHS
+ /usr/include
+ /usr/local/include
+ /opt/local/include
+ /sw/include
+ ${CMAKE_INCLUDE_PATH}
+ ${CMAKE_INSTALL_PREFIX}/include)
-# Look for the library.
-FIND_LIBRARY(PCRE2_LIBRARY NAMES libpcre2.a pcre2-8)
+ # Look for the library.
+ find_library(PCRE2_LIBRARY
+ NAMES
+ libpcre2.a
+ pcre2-8
+ PATHS
+ /usr/lib
+ /usr/lib64
+ /usr/local/lib
+ /usr/local/lib64
+ /opt/local/lib
+ /sw/lib
+ ${CMAKE_LIBRARY_PATH}
+ ${CMAKE_INSTALL_PREFIX}/lib)
-# Check required version
-execute_process(COMMAND pcre2-config --version OUTPUT_VARIABLE PCRE2_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
+ if(PCRE2_LIBRARY)
+ # Check required version
+ execute_process(COMMAND pcre2-config --version OUTPUT_VARIABLE PCRE2_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
+ endif()
-# Handle the QUIETLY and REQUIRED arguments and set PCRE_FOUND to TRUE if all listed variables are TRUE.
-INCLUDE(FindPackageHandleStandardArgs)
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(PCRE2 REQUIRED_VARS PCRE2_LIBRARY PCRE2_INCLUDE_DIR VERSION_VAR PCRE2_VERSION)
+ set(PCRE2_INCLUDE_DIRS ${PCRE2_INCLUDE_DIR})
+ set(PCRE2_LIBRARIES ${PCRE2_LIBRARY})
+ mark_as_advanced(PCRE2_INCLUDE_DIRS PCRE2_LIBRARIES)
-# Copy the results to the output variables.
-IF(PCRE2_FOUND)
- SET(PCRE2_LIBRARIES ${PCRE2_LIBRARY})
- SET(PCRE2_INCLUDE_DIRS ${PCRE2_INCLUDE_DIR})
-ELSE(PCRE2_FOUND)
- SET(PCRE_LIBRARIES)
- SET(PCRE_INCLUDE_DIRS)
-ENDIF(PCRE2_FOUND)
-
-MARK_AS_ADVANCED(PCRE2_INCLUDE_DIRS PCRE2_LIBRARIES)
\ No newline at end of file
+ # Handle the QUIETLY and REQUIRED arguments and set PCRE2_FOUND to TRUE if all listed variables are TRUE.
+ find_package_handle_standard_args(PCRE2 FOUND_VAR PCRE2_FOUND
+ REQUIRED_VARS PCRE2_LIBRARY PCRE2_INCLUDE_DIR
+ VERSION_VAR PCRE2_VERSION)
+endif()