testmodbus-server/HowTo-Cross-Compile.md

Cross Compile

This manual explains the steps to prepare a basic cross compiling environment on Debian. The build will be installed to /opt/W64-cross-compile. If the destination folder is set up right, you do not need any root rights.

The following packages are needed: (maybe wine is not anymore needed, haven't tested yet)

• wine
• wine64
• mingw-w64
• mingw-w64-tools
• binutils-mingw-w64

The following sources are needed:

• glib
• atk
• pango
• gdk-pixbuf
• libepoxy
• GTK+

Prepare the cross-file.ini

This configuration file will be needed on all meson based builds.

[host_machine]
system = 'windows'
cpu_family = 'x86_64'
cpu = 'x86_64'
endian = 'little'

[built-in options]
c_args = []
c_link_args = []

[binaries]
c = '/usr/bin/x86_64-w64-mingw32-gcc'
cpp = '/usr/bin/x86_64-w64-mingw32-g++'
ar = '/usr/bin/x86_64-w64-mingw32-ar'
strip = '/usr/bin/x86_64-w64-mingw32-strip'
pkgconfig = '/usr/bin/x86_64-w64-mingw32-pkg-config'
windres = '/usr/bin/x86_64-w64-mingw32-windres'
ld = '/usr/bin/x86_64-w64-mingw32-ld'
exe_wrapper = 'wine'

lib-glib

Compile the library using the following steps.

mkdir build
cd build
meson setup --buildtype=release --prefix=/opt/W64-cross-compile/ --cross-file ../../cross-file.ini
meson compile

if an error like glib/glibconfig.h:65:51: error: missing binary operator before token "(" occures edit the line and delete the G_GNUC_EXTENSION expression.

meson install

Because not all compiled *.dll files are installed into the destination we need to copy them manualy.

cp `find -name "*.dll"` /opt/W64-cross-compile/lib/

atk

The flags -Dintrospection=false will tell meson to disable some building options. See the file meson_options.txt for some information. Compile the library using the following steps.

mkdir build
cd build
PKG_CONFIG_PATH=/opt/W64-cross-compile/lib/pkgconfig meson setup --buildtype=release -Dintrospection=false -Ddocs=false --prefix=/opt/W64-cross-compile/ --cross-file ../../cross-file.ini
meson compile
meson install

Copy manualy all compiled *.dll files to the destination

cp `find -name "*.dll"` /opt/W64-cross-compile/lib/

pango

Compile the library using the following steps. This will also download and compile some more librarys like libpng and cairo librarys.

mkdir build
cd build
PKG_CONFIG_PATH=/opt/W64-cross-compile/lib/pkgconfig meson setup --buildtype=release --prefix=/opt/W64-cross-compile/ --cross-file ../../cross-file.ini

For some reason the harfbuzz library wants to compile with the HAVE_FT_GET_TRANSFORM definition set. While this function is not defined in the sources at all. The workaround is to comment out the following line in build/subprojects/harfbuzz/config.h file.

// #define HAVE_FT_GET_TRANSFORM 1

Add #include <cairo-dwrite.h> in file ../pango/pangocairo-dwrite-font.cpp` and start the compilation.

PKG_CONFIG_PATH=/opt/W64-cross-compile/lib/pkgconfig meson compile

In case of an error with unresolved symbols like undefined reference to '__strcat_chk'. You need to edit the cross-file.ini and add the linker flags/option -lssp to the c_link_args parameters. Remove the build directory and restart configuring and compiling this libraray again.

meson install
cp `find -name "*.dll"` /opt/W64-cross-compile/lib/

gdk-pixbuf

mkdir build
cd build
PKG_CONFIG_PATH=/opt/W64-cross-compile/lib/pkgconfig meson setup --buildtype=release --prefix=/opt/W64-cross-compile/ --cross-file ../../cross-file.ini
meson compile
meson install
cp `find -name "*.dll"` /opt/W64-cross-compile/lib/

libepoxy

mkdir build
cd build
PKG_CONFIG_PATH=/opt/W64-cross-compile/lib/pkgconfig meson --buildtype=release --prefix=/opt/W64-cross-compile/ --cross-file ../../cross-file.ini
meson compile
meson install
cp `find -name "*.dll"` /opt/W64-cross-compile/lib/

GTK+-4

Configuration and Compilation of GTK

mkdir build
cd build
PKG_CONFIG_PATH=/opt/W64-cross-compile/lib/pkgconfig meson --buildtype=release --prefix=/opt/W64-cross-compile/ -Dmedia-gstreamer=disabled -Ddemos=false -Dbuild-examples=false -Dbuild-tests=false --cross-file ../../cross-file.ini
meson compile

If the compile process stops with error ../gdk/loaders/gdkjpeg.c:302:67: error: ‘free’ undeclared (first use in this function) you need to add the line #include <stdlib.h>on top of the file, before the #include <jpeglib.h> line. Run the compile command again.

meson install
cp `find -name "*.dll"` /opt/W64-cross-compile/lib/

GTK+-3

preparation beacuse of wine

Copy all compiled executeble and library files into the wine windows/system folder.

cp /opt/W64-cross-compile/bin/*.exe ~/.wine/drive_c/windows/system32/
cp /opt/W64-cross-compile/lib/*.dll ~/.wine/drive_c/windows/system32/
cp /usr/x86_64-w64-mingw32/lib/zlib1.dll ~/.wine/drive_c/windows/system32/

workaround for some issues

Edit the file gdk/win32/gdkprivate-win32.h and search around line 300 for the following declaration. In some releases the compiler is missing the extern statement here.

300 /* The singleton selection object pointer */
301 extern GdkWin32Selection *_win32_selection;

compile first attempt

Configure and compile the library.

PKG_CONFIG_PATH=/opt/W64-cross-compile/lib/pkgconfig ./configure --prefix=/opt/W64-cross-compile/ --host=x86_64-w64-mingw32
touch gdk/win32/winpointer.h
PKG_CONFIG_PATH=/opt/W64-cross-compile/lib/pkgconfig make

Compile Error: glib-compile-resources: file not found

make[2]: Verzeichnis „/home/steffen/test/GTKCross/gtk+-3.24.1/gdk“ wird betreten
/bin/bash: Zeile 1: /opt/W64-cross-compile/bin/glib-compile-resources: Datei oder Verzeichnis nicht gefunden
GEN      gdkresources.h
/bin/bash: Zeile 1: /opt/W64-cross-compile/bin/glib-compile-resources: Datei oder Verzeichnis nicht gefunden
make[2]: *** [Makefile:2243: gdkresources.h] Fehler 127

Edit the file gdk/Makefile append the windows .exe extension at the place where GLIB_COMPILE_RESOURCES is defined. Find all the other GLIB_COMPILE_RESOURCES occurences and add the wine command prior to all $(GLIB_COMPILE_RESOURCES) calls. Try to compile.

fix and install the compilation

/bin/bash: Zeile 1: ../../gtk/gtk-update-icon-cache.exe: Kann die Binärdatei nicht ausführen: Fehler im Format der Programmdatei
make[3]: *** [Makefile:1673: install-update-icon-cache] Fehler 126

Edit the Makefile in demos/gtk-demos and add in line the wine prefix where the . Try to run the make install`command and do the same for the next errors.

/bin/bash: Zeile 1: ../../gtk/gtk-update-icon-cache.exe: Kann die Binärdatei nicht ausführen: Fehler im Format der Programmdatei
make[5]: *** [Makefile:1184: install-update-icon-cache] Fehler 126
make[5]: Verzeichnis „/home/steffen/gtkcrosscompile/gtk+-3.24.0/demos/widget-factory“ wird verlassen

If the compilation did well copy all *.dll files into the destination.

cp `find -name "*.dll"` /opt/W64-cross-compile/lib/