PCRE2

Closes #2120

CMakeLists.txt

@@ -73,11 +73,11 @@ if (MSVC)
   set (CMAKE_CXX_FLAGS "/EHsc ${CMAKE_CXX_FLAGS}")
 endif ()
 
-option (WITH_PCRE "Enable pcre" ON)
+option (WITH_PCRE "Enable PCRE" ON)
 if (WITH_PCRE)
-  find_package (PCRE REQUIRED)
+  find_package (PCRE2 REQUIRED)
   set (HAVE_PCRE 1)
-  include_directories (${PCRE_INCLUDE_DIRS})
+  include_directories (${PCRE2_INCLUDE_DIRS})
 endif()
 
 if (WIN32)
@@ -145,8 +145,8 @@ add_executable (swig
   ${PROJECT_BINARY_DIR}/Source/CParse/parser.c
   ${PROJECT_BINARY_DIR}/Source/CParse/parser.h
 )
-if (PCRE_FOUND)
+if (PCRE2_FOUND)
-  target_link_libraries (swig ${PCRE_LIBRARIES})
+  target_link_libraries (swig ${PCRE2_LIBRARIES})
 endif ()
 install (TARGETS swig DESTINATION bin)
 

Doc/Manual/Preface.html

@@ -283,9 +283,9 @@ You must use <a href="http://www.gnu.org/software/make/">GNU make</a> to build a
 <p>
 <a href="http://www.pcre.org/">PCRE</a>
 needs to be installed on your system to build SWIG, in particular
-pcre-config must be available. If you have PCRE headers and libraries but not
+pcre2-config must be available. If you have PCRE headers and libraries but not
-pcre-config itself or, alternatively, wish to override the compiler or linker
+pcre2-config itself or, alternatively, wish to override the compiler or linker
-flags returned by pcre-config, you may set PCRE_LIBS and PCRE_CFLAGS variables
+flags returned by pcre-config, you may set PCRE2_LIBS and PCRE2_CFLAGS variables
 to be used instead. And if you don't have PCRE at all, the configure script
 will provide instructions for obtaining it.
 </p>

Doc/Manual/Windows.html

@@ -239,7 +239,7 @@ For fully working build steps always check the Continuous Integration setups cur
 <ol>
     <li>
         Install Nuget from <a href="https://www.nuget.org/downloads">https://www.nuget.org/downloads</a> (v5.8.1 is used in this example, and installed to C:\Tools). Nuget is the package manager
-        for .NET, but allows us to easily install <a href="https://www.pcre.org/">PCRE</a> and other dependencies required by SWIG.
+        for .NET, but allows us to easily install <a href="https://cmake.org/">CMake</a> and other dependencies required by SWIG.
     </li>
     <li>
         Install CMake using the following command: <pre>C:\Tools\nuget install CMake-win64 -Version 3.15.5 -OutputDirectory C:\Tools\CMake</pre>
@@ -251,8 +251,14 @@ For fully working build steps always check the Continuous Integration setups cur
         and save to a folder e.g. C:\Tools\Bison
     </li>
     <li>
-        Install PCRE using Nuget using the following command: <pre>C:\Tools\nuget install pcre -Version 8.33.0.1 -OutputDirectory C:\Tools\pcre</pre>.
+        Install PCRE2 using the following commands:
-        Alternatively, use <tt>WITH_PCRE</tt> option to disable PCRE support if you are sure not to need it.
+<div class="shell"><pre>
+git clone https://github.com/PhilipHazel/pcre2.git
+cd pcre2
+cmake -G "Visual Studio 15 2017 Win64" -DCMAKE_INSTALL_PREFIX=C:/pcre .
+cmake --build . --config Release --target install
+</pre></div>
+Alternatively, use <tt>WITH_PCRE</tt> option to disable PCRE support if you are sure not to need it.
     </li>
     <li>
         We will also need the SWIG source code. Either download a zipped archive from GitHub, or if git is installed clone the latest codebase
@@ -272,10 +278,10 @@ For fully working build steps always check the Continuous Integration setups cur
     <pre>
 cd C:\swig
 SET PATH=C:\Tools\CMake\CMake-win64.3.15.5\bin;C:\Tools\bison\bison-win32.2.4.1.1\tools\native\bin;%PATH%
-SET PCRE_ROOT=C:\Tools\pcre\pcre.8.33.0.1\build\native
+SET PCRE_ROOT=C:/pcre
 SET PCRE_PLATFORM=x64
-cmake -G "Visual Studio 15 2017 Win64" -DCMAKE_INSTALL_PREFIX="%CD:\=/%/install2" -DCMAKE_C_FLAGS="/DPCRE_STATIC" ^
+cmake -G "Visual Studio 15 2017 Win64" -DCMAKE_INSTALL_PREFIX="%CD:\=/%/install2" -DCMAKE_C_FLAGS="/DPCRE2_STATIC" ^
-  -DPCRE_INCLUDE_DIR=%PCRE_ROOT%/include -DPCRE_LIBRARY=%PCRE_ROOT%/lib/v110/%PCRE_PLATFORM%/Release/static/utf8/pcre8.lib .
+  -DPCRE2_INCLUDE_DIR=%PCRE_ROOT%/include -DPCRE2_LIBRARY=%PCRE_ROOT%/lib/pcre2-8.lib .
 cmake --build . --config Release
 
 REM to test the exe
@@ -311,7 +317,7 @@ Install the packages needed to build swig:<br>
 
 <div class="shell">
 <pre>
-pacman -S git autoconf automake bison gcc make pcre-devel
+pacman -S git autoconf automake bison gcc make pcre2-devel
 </pre>
 </div>
 
@@ -446,7 +452,7 @@ the autotools will fail miserably on those.
 
   <li>
 The PCRE third party library needs to be built next. 
-Download the latest PCRE source tarball, such as <tt>pcre-8.10.tar.bz2</tt>, from 
+Download the latest PCRE source tarball, such as <tt>pcre2-10.39.tar.bz2</tt>, from
 <a href=http://www.pcre.org>PCRE</a> and place in the <tt>/usr/src/swig</tt> directory.
 Build PCRE as a static library using the Tools/pcre-build.sh script as follows:
 

Source/Swig/misc.c

@@ -1312,7 +1312,8 @@ void Swig_offset_string(String *s, int number) {
 
 
 #ifdef HAVE_PCRE
-#include <pcre.h>
+#define PCRE2_CODE_UNIT_WIDTH 8
+#include <pcre2.h>
 
 static int split_regex_pattern_subst(String *s, String **pattern, String **subst, const char **input)
 {
@@ -1375,7 +1376,7 @@ static void copy_with_maybe_case_conversion(String *dst, const char *src, int le
   }
 }
 
-String *replace_captures(int num_captures, const char *input, String *subst, int captures[], String *pattern, String *s)
+String *replace_captures(int num_captures, const char *input, String *subst, size_t captures[], String *pattern, String *s)
 {
   int convertCase = 0, convertNextOnly = 0;
   String *result = NewStringEmpty();
@@ -1397,7 +1398,7 @@ String *replace_captures(int num_captures, const char *input, String *subst, int
     } else if (isdigit((unsigned char)*p)) {
       int group = *p++ - '0';
       if (group < num_captures) {
-	int l = captures[group*2], r = captures[group*2 + 1];
+	int l = (int)captures[group*2], r = (int)captures[group*2 + 1];
 	if (l != -1) {
 	  copy_with_maybe_case_conversion(result, input + l, r - l, &convertCase, convertNextOnly);
 	}
@@ -1449,26 +1450,31 @@ String *Swig_string_regex(String *s) {
   const int pcre_options = 0;
 
   String *res = 0;
-  pcre *compiled_pat = 0;
+  pcre2_code *compiled_pat = 0;
-  const char *pcre_error, *input;
+  const char *input;
-  int pcre_errorpos;
+  PCRE2_UCHAR pcre_error[256];
+  int pcre_errornum;
+  size_t pcre_errorpos;
   String *pattern = 0, *subst = 0;
-  int captures[30];
+  size_t *captures = 0;
-
+  pcre2_match_data *match_data = 0;
   if (split_regex_pattern_subst(s, &pattern, &subst, &input)) {
     int rc;
 
-    compiled_pat = pcre_compile(
+    compiled_pat = pcre2_compile(
-          Char(pattern), pcre_options, &pcre_error, &pcre_errorpos, NULL);
+          (PCRE2_SPTR8)Char(pattern), PCRE2_ZERO_TERMINATED, pcre_options, &pcre_errornum, &pcre_errorpos, NULL);
     if (!compiled_pat) {
+      pcre2_get_error_message (pcre_errornum, pcre_error, sizeof pcre_error);
       Swig_error("SWIG", Getline(s), "PCRE compilation failed: '%s' in '%s':%i.\n",
           pcre_error, Char(pattern), pcre_errorpos);
       SWIG_exit(EXIT_FAILURE);
     }
-    rc = pcre_exec(compiled_pat, NULL, input, (int)strlen(input), 0, 0, captures, 30);
+    match_data = pcre2_match_data_create_from_pattern (compiled_pat, NULL);
+    rc = pcre2_match(compiled_pat, (PCRE2_SPTR8)input, PCRE2_ZERO_TERMINATED, 0, 0, match_data, NULL);
+    captures = pcre2_get_ovector_pointer (match_data);
     if (rc >= 0) {
       res = replace_captures(rc, input, subst, captures, pattern, s);
-    } else if (rc != PCRE_ERROR_NOMATCH) {
+    } else if (rc != PCRE2_ERROR_NOMATCH) {
       Swig_error("SWIG", Getline(s), "PCRE execution failed: error %d while matching \"%s\" using \"%s\".\n",
 	rc, Char(pattern), input);
       SWIG_exit(EXIT_FAILURE);
@@ -1477,12 +1483,19 @@ String *Swig_string_regex(String *s) {
 
   DohDelete(pattern);
   DohDelete(subst);
-  pcre_free(compiled_pat);
+  pcre2_code_free(compiled_pat);
+  pcre2_match_data_free(match_data);
   return res ? res : NewStringEmpty();
 }
 
 String *Swig_pcre_version(void) {
-  return NewStringf("PCRE Version: %s", pcre_version());
+  int len = pcre2_config(PCRE2_CONFIG_VERSION, NULL);
+  char *buf = malloc(len);
+  String *result;
+  pcre2_config(PCRE2_CONFIG_VERSION, buf);
+  result = NewStringf("PCRE Version: %s", buf);
+  free(buf);
+  return result;
 }
 
 #else

Source/Swig/naming.c

@@ -1092,26 +1092,32 @@ static DOH *get_lattr(Node *n, List *lattr) {
 }
 
 #ifdef HAVE_PCRE
-#include <pcre.h>
+#define PCRE2_CODE_UNIT_WIDTH 8
+#include <pcre2.h>
 
 static int name_regexmatch_value(Node *n, String *pattern, String *s) {
-  pcre *compiled_pat;
+  pcre2_code *compiled_pat;
-  const char *err;
+  PCRE2_UCHAR err[256];
-  int errpos;
+  int errornum;
+  size_t errpos;
   int rc;
 
-  compiled_pat = pcre_compile(Char(pattern), 0, &err, &errpos, NULL);
+  compiled_pat = pcre2_compile((PCRE2_SPTR8)Char(pattern), PCRE2_ZERO_TERMINATED, 0, &errornum, &errpos, NULL);
   if (!compiled_pat) {
+    pcre2_get_error_message (errornum, err, sizeof err);
     Swig_error("SWIG", Getline(n),
                "Invalid regex \"%s\": compilation failed at %d: %s\n",
                Char(pattern), errpos, err);
     SWIG_exit(EXIT_FAILURE);
   }
 
-  rc = pcre_exec(compiled_pat, NULL, Char(s), Len(s), 0, 0, NULL, 0);
+  pcre2_match_data *match_data = 0;
-  pcre_free(compiled_pat);
+  match_data = pcre2_match_data_create_from_pattern (compiled_pat, NULL);
+  rc = pcre2_match(compiled_pat, (PCRE2_SPTR8)Char(s), PCRE2_ZERO_TERMINATED, 0, 0, match_data, 0);
+  pcre2_code_free(compiled_pat);
+  pcre2_match_data_free(match_data);
 
-  if (rc == PCRE_ERROR_NOMATCH)
+  if (rc == PCRE2_ERROR_NOMATCH)
     return 0;
 
   if (rc < 0 ) {

Tools/cmake/FindPCRE.cmake

@@ -1,37 +0,0 @@
-# Copyright (C) 2007-2009 LuaDist.
-# Created by Peter Kapec <kapecp@gmail.com>
-# Redistribution and use of this file is allowed according to the terms of the MIT license.
-# For details see the COPYRIGHT file distributed with LuaDist.
-#	Note:
-#		Searching headers and libraries is very simple and is NOT as powerful as scripts
-#		distributed with CMake, because LuaDist defines directories to search for.
-#		Everyone is encouraged to contact the author with improvements. Maybe this file
-#		becomes part of CMake distribution sometimes.
-
-# - Find pcre
-# Find the native PCRE headers and libraries.
-#
-# PCRE_INCLUDE_DIRS	- where to find pcre.h, etc.
-# PCRE_LIBRARIES	- List of libraries when using pcre.
-# PCRE_FOUND	- True if pcre found.
-
-# Look for the header file.
-FIND_PATH(PCRE_INCLUDE_DIR NAMES pcre.h)
-
-# Look for the library.
-FIND_LIBRARY(PCRE_LIBRARY NAMES pcre)
-
-# 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(PCRE DEFAULT_MSG PCRE_LIBRARY PCRE_INCLUDE_DIR)
-
-# Copy the results to the output variables.
-IF(PCRE_FOUND)
-	SET(PCRE_LIBRARIES ${PCRE_LIBRARY})
-	SET(PCRE_INCLUDE_DIRS ${PCRE_INCLUDE_DIR})
-ELSE(PCRE_FOUND)
-	SET(PCRE_LIBRARIES)
-	SET(PCRE_INCLUDE_DIRS)
-ENDIF(PCRE_FOUND)
-
-MARK_AS_ADVANCED(PCRE_INCLUDE_DIRS PCRE_LIBRARIES)

Tools/cmake/FindPCRE2.cmake

@@ -0,0 +1,21 @@
+# - Find PCRE2
+# Perl Compatible Regular Expressions
+# https://www.pcre.org/
+
+# The following variables are set:
+# PCRE2_FOUND - System has the PCRE library
+# PCRE2_LIBRARIES - The PCRE library file
+# PCRE2_INCLUDE_DIRS - The folder with the PCRE headers
+
+find_library(PCRE2_LIBRARY NAMES pcre2 pcre2-8)
+find_path(PCRE2_INCLUDE_DIR pcre2.h)
+
+set (PCRE2_LIBRARIES ${PCRE2_LIBRARY})
+set (PCRE2_INCLUDE_DIRS ${PCRE2_INCLUDE_DIR})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(PCRE2 DEFAULT_MSG PCRE2_LIBRARIES PCRE2_INCLUDE_DIRS)
+
+mark_as_advanced (
+  PCRE2_LIBRARY
+  PCRE2_INCLUDE_DIR)

Tools/mkwindows.sh

@@ -84,7 +84,7 @@ export CXXFLAGS="$compileflags"
 swigbasename=swig-$version
 swigwinbasename=swigwin-$version
 tarball=$swigbasename.tar.gz
-pcre_tarball=`ls pcre-*.tar.*`
+pcre_tarball=`ls pcre2-*.tar.*`
 
 if ! test -f "$pcre_tarball"; then
   echo "Could not find PCRE tarball. Please download a PCRE source tarball from http://www.pcre.org"

Tools/nuget-install.cmd

@@ -1,28 +0,0 @@
-rem Workaround 'nuget install' not being reliable by retrying a few times
-@echo off
-rem initiate the retry number
-set errorCode=1
-set retryNumber=0
-set maxRetries=5
-
-:RESTORE
-nuget install %*
-
-rem problem?
-IF ERRORLEVEL %errorCode% GOTO :RETRY
-
-rem everything is fine!
-@echo Installed nuget, retries: %reTryNumber%
-GOTO :EXIT
-
-:RETRY
-@echo Oops, nuget restore exited with code %errorCode% - let us try again!
-set /a retryNumber=%retryNumber%+1
-IF %reTryNumber% LSS %maxRetries% (GOTO :RESTORE)
-IF %retryNumber% EQU %maxRetries% (GOTO :ERR)
-
-:ERR
-@echo Sorry, we tried restoring nuget packages for %maxRetries% times and all attempts were unsuccessful!
-EXIT /B 1
-
-:EXIT

Tools/pcre-build.sh

@@ -37,8 +37,8 @@ fi
 
 echo "Looking for PCRE tarball..."
 rm -rf pcre
-pcre_tarball=`ls pcre-*.tar*`
+pcre_tarball=`ls pcre2-*.tar*`
-test -n "$pcre_tarball" || bail "Could not find tarball matching pattern: pcre-*.tar*"
+test -n "$pcre_tarball" || bail "Could not find tarball matching pattern: pcre2-*.tar*"
 test -f "$pcre_tarball" || bail "Could not find a single PCRE tarball. Found: $pcre_tarball"
 
 echo "Extracting tarball: $pcre_tarball"

appveyor.yml

@@ -123,15 +123,16 @@ install:
     }
 - if "%OSVARIANT%"=="" bash -c "cd /usr/bin && curl --retry 15 -s -L https://github.com/swig/cccl/archive/cccl-1.2.tar.gz | tar -xz --strip 1 cccl-cccl-1.2/cccl"
 - if "%OSVARIANT%"=="" call "%VCVARSBAT%" %VCVARSARG%
-- if "%OSVARIANT%"=="" Tools\nuget-install.cmd pcre -Verbosity quiet -Version 8.33.0.1 -OutputDirectory C:\pcre
+- if "%OSVARIANT%"=="" appveyor-retry appveyor DownloadFile https://github.com/PhilipHazel/pcre2/archive/refs/tags/pcre2-10.39.zip
-- if "%OSVARIANT%"=="" set PCRE_ROOT=C:/pcre/pcre.8.33.0.1/build/native
+- if "%OSVARIANT%"=="" 7z x pcre2-10.39.zip
+- if "%OSVARIANT%"=="" set PCRE_ROOT=C:/pcre
 - if not "%OSVARIANT%"=="cygwin" set PATH=C:\Python%VER%%LANG_PLATFORM%;%PATH%
 - if "%OSVARIANT%"=="" bash -c "which cl.exe"
 - if "%OSVARIANT%"=="" bash -c "cl.exe /? 2>&1 | head -n 1"
 - if "%OSVARIANT%"=="" bash -c "which csc.exe"
 - if "%OSVARIANT%"=="" bash -c "csc.exe /? | head -n 1"
-- if "%OSVARIANT%"=="cygwin" %CYGWINSETUP% --quiet-mode --packages python2-devel,libpcre-devel,libboost-devel > cygwin-install.txt || bash -c "cat cygwin-install.txt"
+- if "%OSVARIANT%"=="cygwin" %CYGWINSETUP% --quiet-mode --packages python2-devel,libpcre2-devel,libboost-devel > cygwin-install.txt || bash -c "cat cygwin-install.txt"
-- if "%OSVARIANT%"=="mingw" bash -c "pacman --noconfirm --sync mingw%MBITS%/mingw-w64-%MARCH%-autotools mingw%MBITS%/mingw-w64-%MARCH%-pcre mingw%MBITS%/mingw-w64-%MARCH%-boost"
+- if "%OSVARIANT%"=="mingw" bash -c "pacman --noconfirm --sync mingw%MBITS%/mingw-w64-%MARCH%-autotools mingw%MBITS%/mingw-w64-%MARCH%-pcre2 mingw%MBITS%/mingw-w64-%MARCH%-boost"
 - if not "%WITHLANG%"=="" set SWIGWITHLANG==%WITHLANG%
 - if not "%WITHLANG%"=="" where %WITHLANG%
 - bash -c "which $CC"
@@ -148,9 +149,11 @@ install:
 build_script:
 - set CCCL_OPTIONS=--cccl-muffle /W3 /EHsc
 - set CHECK_OPTIONS=CSHARPOPTIONS=-platform:%Platform%
-- if "%BUILDSYSTEM%"=="cmake" cmake --version && cmake -G "Visual Studio 14 2015%VSARCH%" -DCMAKE_INSTALL_PREFIX="%CD:\=/%/install2" -DCMAKE_C_FLAGS="/WX /DPCRE_STATIC" -DCMAKE_CXX_FLAGS="/WX /DPCRE_STATIC" -DPCRE_INCLUDE_DIR=%PCRE_ROOT%/include -DPCRE_LIBRARY=%PCRE_ROOT%/lib/v110/%PCRE_PLATFORM%/Release/static/utf8/pcre8.lib -DBISON_EXECUTABLE=C:/cygwin/bin/bison.exe . && cmake --build . --config Release --target install && ctest --output-on-failure -V -C Release && appveyor exit
+- if "%BUILDSYSTEM%"=="cmake" cd pcre2-pcre2-10.39 && cmake -G "Visual Studio 14 2015%VSARCH%" -DCMAKE_INSTALL_PREFIX="%PCRE_ROOT:\=/%" . && cmake --build . --config Release --target install && cd ..
+- if "%BUILDSYSTEM%"=="cmake" cmake --version && cmake -G "Visual Studio 14 2015%VSARCH%" -DCMAKE_INSTALL_PREFIX="%CD:\=/%/install2" -DCMAKE_C_FLAGS="/WX /DPCRE_STATIC" -DCMAKE_CXX_FLAGS="/WX /DPCRE2_STATIC" -DPCRE2_INCLUDE_DIR=%PCRE_ROOT%/include -DPCRE2_LIBRARY=%PCRE_ROOT%/lib/pcre2-8-static.lib -DBISON_EXECUTABLE=C:/cygwin/bin/bison.exe . && cmake --build . --config Release --target install && ctest --output-on-failure -V -C Release && appveyor exit
+- if "%OSVARIANT%"=="" bash -c "exec 0</dev/null && cd pcre2-pcre2-10.39 && ./autogen.sh && ./configure CC=$CC CXX=$CXX CFLAGS='-O2' LDFLAGS='--cccl-link /LTCG' --prefix=%PCRE_ROOT% --disable-shared && time make -s -j%MAKEJOBS% LN_S=cp && make install && cd .. && cp -v %PCRE_ROOT%/lib/libpcre2-8.lib %PCRE_ROOT%/lib/pcre2-8.lib"
   # Open dummy file descriptor to fix error on cygwin: ./configure: line 560: 0: Bad file descriptor
-- if "%OSVARIANT%"=="" bash -c "exec 0</dev/null && ./autogen.sh && time ./configure --disable-dependency-tracking --disable-ccache --enable-cpp11-testing CC=$CC CXX=$CXX CFLAGS='-O2' CXXFLAGS='-O2' LDFLAGS='--cccl-link /LTCG' PCRE_CFLAGS='-I%PCRE_ROOT%/include -DPCRE_STATIC' PCRE_LIBS='-L%PCRE_ROOT%/lib/v110/%PCRE_PLATFORM%/Release/static/utf8 -lpcre8' --without-perl5 --without-go --with-boost=%BOOSTROOT% || cat config.log"
+- if "%OSVARIANT%"=="" bash -c "exec 0</dev/null && ./autogen.sh && time ./configure --disable-dependency-tracking --disable-ccache --enable-cpp11-testing CC=$CC CXX=$CXX CFLAGS='-O2' CXXFLAGS='-O2' LDFLAGS='--cccl-link /LTCG' PCRE2_CFLAGS='-I%PCRE_ROOT%/include -DPCRE2_STATIC' PCRE2_LIBS='-L%PCRE_ROOT%/lib/ -lpcre2-8' --without-perl5 --without-go --with-boost=%BOOSTROOT% || cat config.log"
 - if not "%OSVARIANT%"=="" bash -c "exec 0</dev/null && ./autogen.sh && time ./configure CC=%CC% CXX=%CXX% --without-alllang --with-$SWIGLANG$PY3$SWIGWITHLANG --enable-cpp11-testing || cat config.log"
 - bash -c "time make -s -j%MAKEJOBS%"
 

configure.ac

@@ -59,24 +59,24 @@ dnl To make configuring easier, check for a locally built PCRE using the Tools/p
 if test x"${with_pcre}" = xyes ; then
   AC_MSG_CHECKING([whether to use local PCRE])
   local_pcre_config=no
-  if test -z $PCRE_CONFIG; then
+  if test -z $PCRE2_CONFIG; then
-    if test -f `pwd`/pcre/pcre-swig-install/bin/pcre-config; then
+    if test -f `pwd`/pcre/pcre-swig-install/bin/pcre2-config; then
-      PCRE_CONFIG=`pwd`/pcre/pcre-swig-install/bin/pcre-config
+      PCRE2_CONFIG=`pwd`/pcre/pcre-swig-install/bin/pcre2-config
-      local_pcre_config=$PCRE_CONFIG
+      local_pcre_config=$PCRE2_CONFIG
     fi
   fi
   AC_MSG_RESULT([$local_pcre_config])
 fi
 AS_IF([test "x$with_pcre" != xno],
-  [AX_PATH_GENERIC([pcre],
+  [AX_PATH_GENERIC([pcre2],
     [], dnl Minimal version of PCRE we need -- accept any
     [], dnl custom sed script for version parsing is not needed
     [AC_DEFINE([HAVE_PCRE], [1], [Define if you have PCRE library])
-     LIBS="$LIBS $PCRE_LIBS"
+     LIBS="$LIBS $PCRE2_LIBS"
-     CPPFLAGS="$CPPFLAGS $PCRE_CFLAGS"
+     CPPFLAGS="$CPPFLAGS $PCRE2_CFLAGS"
     ],
     [AC_MSG_FAILURE([
-        Cannot find pcre-config script from PCRE (Perl Compatible Regular Expressions)
+        Cannot find pcre2-config script from PCRE (Perl Compatible Regular Expressions)
         library package. This dependency is needed for configure to complete,
         Either:
         - Install the PCRE developer package on your system (preferred approach).
@@ -87,7 +87,8 @@ AS_IF([test "x$with_pcre" != xno],
           (quite easy and does not require privileges to install PCRE on your system)
         - Use configure --without-pcre to disable regular expressions support in SWIG
           (not recommended).])
-    ])
+    ],
+    [],[],[--libs8])
   ])