PCRE is a library that is used by the optional "rules" feature for the command

line version of cppcheck. It is readily available on Linux and Mac OS X, but

must be obtained separately for Windows.

If you're using qmake to generate makefiles, the following behavior applies:

- If you're not on Windows, it assumes by default that you have PCRE and want

to enable rules support. You can disable rules support (removing the PCRE

dependency) by passing HAVE_RULES=no to qmake.

- If you are on Windows, but have PCRE available, you can enable rules support

by passing HAVE_RULES=yes to qmake.

- Note: This includes using build.bat since it calls qmake - to use PCRE and

build.bat, you need to run set HAVE_RULES=yes before each run of build.bat

Build instructions

------------------

Windows

-------

Visual Studio

To build PCRE, download the source code from www.pcre.org and

CMake (https://cmake.org/download/). We assume you use Visual Studio 2015 -

otherwise adapt the commands for your version.

VS Solution file

cmake . -G "Visual Studio 14 2015"

Open PCRE.sln with VS IDE or via cmd:

call "%VS140COMNTOOLS%..\..\VC\vcvarsall.bat" x86

MSBuild PCRE.sln /target:Build /property:Configuration="Release"

For 64-bit target: cmake . -G "Visual Studio 14 2015 Win64"

or using NMake

call "%VS140COMNTOOLS%..\..\VC\vcvarsall.bat" x86

cmake . -G "NMake Makefiles"

nmake

or using MSYS

cmake . -G "MSYS Makefiles"

make

Linux

-----

The normal Makefile should work.

Install PCRE on Ubuntu might be needed:

sudo apt-get install libpcre3 libpcre3-dev

Mac OSX

-------

Install PCRE:

sudo port install pcre

Ensure /path/to/pcre.h is in CXXFLAGS, e.g:

export CXXFLAGS=${CXXFLAGS}:/opt/local/include

Or for MSVC copy pcre.lib and pcre.h in /externals directory.