Drop PCRE dependency.

The config file is now manually parsed instead of using regex.
While this is less beautifull, it allows us to drop PCRE
as a dependency on Windows.

cmake/modules/FindPCRE.cmake

@@ -1,42 +0,0 @@
-# This CMake script wants to use pcre functionality needed for windows 
-# compilation. However, since PCRE isn't really a default install location
-# there isn't much to search.
-#
-# Operating Systems Supported:
-# - Windows (requires MinGW)
-#   Tested with Windows XP/Windows 7
-#
-# This should work for both 32 bit and 64 bit systems.
-#
-# Author: A. Lian <alex.lian@gmail.com>
-#
-
-IF(WIN32)
-  IF(NOT PCRE_FOUND)
-    FIND_PATH(PCRE_INCLUDE_DIRS regex.h)
-    FIND_LIBRARY(PCRE_LIBRARIES NAMES PCRE pcre)
-    FIND_PATH(PCRE_BIN_DIRS pcre3.dll)
-    
-    IF(PCRE_INCLUDE_DIRS AND PCRE_LIBRARIES AND PCRE_BIN_DIRS)
-       SET(PCRE_FOUND TRUE)
-    ENDIF(PCRE_INCLUDE_DIRS AND PCRE_LIBRARIES AND PCRE_BIN_DIRS)
-  ENDIF(NOT PCRE_FOUND)
-
-  IF(PCRE_FOUND)
-    IF(NOT PCRE_FIND_QUIETLY)
-      MESSAGE(STATUS "Found PCRE: ${PCRE_LIBRARIES} ${PCRE_INCLUDE_DIRS} ${PCRE_BIN_DIRS}")
-    ENDIF (NOT PCRE_FIND_QUIETLY)
-  ELSE(PCRE_FOUND)
-    IF(PCRE_FIND_REQUIRED)
-      MESSAGE(FATAL_ERROR "Could not find PCRE")
-    ENDIF(PCRE_FIND_REQUIRED)
-  ENDIF(PCRE_FOUND)
-
-  INCLUDE(FindPackageHandleStandardArgs)
-  FIND_PACKAGE_HANDLE_STANDARD_ARGS(PCRE DEFAULT_MSG
-    PCRE_LIBRARIES
-    PCRE_INCLUDE_DIRS
-    PCRE_BIN_DIRS
-  )
-
-ENDIF(WIN32)

cmake/modules/Makefile.am

@@ -2,6 +2,5 @@ EXTRA_DIST = \
 	COPYING-CMAKE-SCRIPTS \
 	FindLIBUSB.cmake \
 	FindPCSC.cmake \
-	FindPCRE.cmake \
 	UseDoxygen.cmake \
 	LibnfcDrivers.cmake