Wt

h1. Installing Wt on MinGW

h2. MinGW requirements

This guide used the TDM-gcc (4.5.1-tdm-4).

The shell commands were executed in the 'MinGW Command Propmpt' of the TDM-gcc installation.

h2. Build Boost

First, bootstrap boost

<pre>

cd boost_1_43_0

bootstrap.bat

</pre>

Before building boost, consider to apply the two patches provided below. These are bugs that may be fixed in future versions of boost and cygwin, but compilation of Wt failed whith boost 1.44 and TDM-gcc 4.5.1-tdm-4.

Build the required libraries

<pre>

bjam --prefix=i:/mingw-libraries/boost link=static threading=multi --layout=versioned --toolset=gcc --with-date_time --with-filesystem --with-program_options --wit-random --with-regex --with-signals --with-system --with-thread install

</pre>

This only builds the required libraries. It will take a while before boost is installed. If the boost.random library does not exist for your boost version, then simply omit it from the bjam command line.

Note: If you get link errors with boost.thread, Tomasz Kalicki points out that you may want to fix the boost header files. This is not necessarily required for Wt versions newer than 3.1.5 as those will define BOOST_THREAD_USE_LIB when not linking to a dynamic boost (-DBOOST_DYNAMIC=OFF), but you may want to use it anyway if you use boost.thread in your own application.

<pre>

--- oldconfig.hpp       2010-07-09 20:13:09.000000000 +0200

+++ config.hpp  2010-09-16 11:11:48.000000000 +0200

@@ -37,7 +37,7 @@

 #elif defined(BOOST_THREAD_USE_LIB)   //Use lib

 #else //Use default

 #   if defined(BOOST_THREAD_PLATFORM_WIN32)

-#       if defined(BOOST_MSVC) || defined(BOOST_INTEL_WIN)

+#       if defined(BOOST_MSVC) || defined(BOOST_INTEL_WIN) || defined(__MINGW32__)

            //For compilers supporting auto-tss cleanup

            //with Boost.Threads lib, use Boost.Threads lib

 #           define BOOST_THREAD_USE_LIB

</pre>

See https://svn.boost.org/trac/boost/ticket/4614

<pre>

--- libs/thread/src/win32/tss_pe.cpp.orig       2010-09-16 15:46:01.375000000 +0200

+++ libs/thread/src/win32/tss_pe.cpp    2010-09-16 15:46:53.906250000 +0200

@@ -54,6 +54,7 @@

     PIMAGE_TLS_CALLBACK __crt_xl_end__ __attribute__ ((section(".CRT$XLZ"))) = 0;

 }

+#if 0

 extern "C" const IMAGE_TLS_DIRECTORY32 _tls_used __attribute__ ((section(".rdata$T"))) =

 {

         (DWORD) &__tls_start__,

@@ -63,6 +64,7 @@

         (DWORD) 0,

         (DWORD) 0

 };

+#endif

 #elif  defined(_MSC_VER) && !defined(UNDER_CE)

</pre>

See https://svn.boost.org/trac/boost/ticket/4258

h3. Build Wt

<pre>

cmake c:/cygwin/home/Wim/projects/wt-git/wt -DBOOST_DIR=i:/mingw-libraries/boost -DBOOST_COMPILER=mgw45 -DBOOST_VERSION=1_44 -G "MinGW Makefiles"

</pre>

Then build Wt and the examples

<pre>

mingw32-make

</pre>

The Isapi connector is not built under MinGW because the httpext.h file provided with MinGW misses several declarations. I suspect that with a complete httpext.h header, it is possible to build the isapi connector without problems.