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#1 |
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Join Date: Jan 2007
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How to get started in development?
This is arguably one of the most interesting forums on mobileread. I imagine many readers like me might ask, "If I were keen to try my hand at development, where should I start?" I have some programming skills (C, Python, Matlab) and basic hardware knowledge. But where would I find information to bridge the gap between that superficial level and what is required to actually port an app? Any advice would be appreciated. TIA.
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#2 |
Addicted to Porting
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I'm starting right here: https://wiki.mobileread.com/wiki/Ilia...cial_toolchain
I just finished the VMware tutorial, and I'm going to try porting my first app. I have very little programming skills, but I can understand code, and I know quite a bit about linux. |
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#3 | |
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So, ask whatever you need and I'll try to do my best (answering). |
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#4 |
Addicted to Porting
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Here's one...
I'm trying to compile a package. When I run a ./configure, it complains that it needs gconf-2.0 and libgtkhtml. I've found and downloaded those packages. They in turn, require other gnome libraries. I've gotten frustrated and gave up...If I keep following the dependencies, I feel like I'm going to compile all of gnome to resolve these 2 packages. Or do I not need to compile these, but simply have the source available? |
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#5 | |
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Anyway, yours is a "Good question" :-). Firstly, yes, you'll end compiling a lot of gnome libraries just to fullfill those two dependencies. For example, looking at the libgtkhtml library installed in the PC: Code:
~$ ldd /usr/lib/libgtkhtml-2.so.0 libxml2.so.2 => /usr/lib/libxml2.so.2 (0x40063000) libpthread.so.0 => /lib/libpthread.so.0 (0x40177000) libz.so.1 => /usr/lib/libz.so.1 (0x401c8000) libgailutil.so.17 => /usr/lib/libgailutil.so.17 (0x401db000) libgnomecanvas-2.so.0 => /usr/lib/libgnomecanvas-2.so.0 (0x401e3000) libart_lgpl_2.so.2 => /usr/lib/libart_lgpl_2.so.2 (0x4020f000) libpangoft2-1.0.so.0 => /usr/lib/libpangoft2-1.0.so.0 (0x40225000) libgtk-x11-2.0.so.0 => /usr/lib/libgtk-x11-2.0.so.0 (0x4024b000) libgdk-x11-2.0.so.0 => /usr/lib/libgdk-x11-2.0.so.0 (0x40529000) libatk-1.0.so.0 => /usr/lib/libatk-1.0.so.0 (0x405a9000) libgdk_pixbuf-2.0.so.0 => /usr/lib/libgdk_pixbuf-2.0.so.0 (0x405c7000) libm.so.6 => /lib/libm.so.6 (0x405dd000) libpangoxft-1.0.so.0 => /usr/lib/libpangoxft-1.0.so.0 (0x405ff000) libpangox-1.0.so.0 => /usr/lib/libpangox-1.0.so.0 (0x40606000) libpango-1.0.so.0 => /usr/lib/libpango-1.0.so.0 (0x40611000) libgobject-2.0.so.0 => /usr/lib/libgobject-2.0.so.0 (0x4064b000) libgmodule-2.0.so.0 => /usr/lib/libgmodule-2.0.so.0 (0x4067f000) libdl.so.2 => /lib/libdl.so.2 (0x40683000) libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0x40686000) libc.so.6 => /lib/libc.so.6 (0x40706000) /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x80000000) libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0x4083a000) libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0x40869000) libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x408d6000) libXrandr.so.2 => /usr/X11R6/lib/libXrandr.so.2 (0x4099d000) libXi.so.6 => /usr/X11R6/lib/libXi.so.6 (0x409a1000) libXext.so.6 => /usr/X11R6/lib/libXext.so.6 (0x409a9000) libXft.so.2 => /usr/lib/libXft.so.2 (0x409b8000) libXcursor.so.1 => /usr/lib/libXcursor.so.1 (0x409cb000) libXrender.so.1 => /usr/lib/libXrender.so.1 (0x409d4000) libexpat.so.1 => /usr/lib/libexpat.so.1 (0x409dc000) If you really, really want to compile gnome for the iliad, your best bet is using GARNOME ( http://www.gnome.org/projects/garnome/ ), as it is somewhat difficult to compile it "by hand". That will create a gnome environment in the home of your user. In the iliad, you'll have to install it in a SD or CF and replicate the path you used to compile it with a symlink in the iliad. Now, I'll try to dissuade you from doing so :-). 1. Gnome is HUGE. It contains a lot of libraries and data files. 2. Its slow, as every library that you add as a dependency for your program, is more work for the dynamic linker at program startup, and the iliad is not a 3Ghz computer. 3. It consumes a lot of memory (because of the huge quantity of libraries it brings to memory). Ideally, you should aim for motif apps, gtk+2.x apps, GPE apps, SDL-based apps or just plain X (ace of penguins, for example). If this doesn't answer your question, keep asking ;-). EDIT: Re-reading my post... Well, it's not as it connot be done, If you want to try it, I'll assist you :-). Even without the Garnome approach, if you really only depend on gconf and libggtkhtml, it's not that hard (less than a dozen or so of libraries), but I'm not so sure that you will only need those two libraries (configure checks the one-at-a-time, and after you have that check fulfilled it will check the next dependency...) Last edited by Antartica; 01-11-2007 at 08:20 AM. |
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#6 |
Addicted to Porting
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Thanks, that helps a lot. I never had any intention of running gnome on the iLiad...I was just trying to get what looked to be a small chm viewer (http://sourceforge.net/projects/chmview/) compiled. I guess I will continue my quest elsewhere
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#7 | |
Übernerd
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Quote:
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#8 | |
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![]() BTW, I'll post here the direct link to your work O:-), just to remember everyone else that it's for mobilereaders consumption: https://wiki.mobileread.com/wiki/Usin...s_using_vmware Last edited by Antartica; 01-11-2007 at 11:00 AM. |
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#9 |
Addicted to Porting
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Alright, here's another one...
Code:
Creating libzlibrary-gtk.so.0 .../scratchbox/compilers/arm-linux-iliad-softfloat/gcc-3.4.2-glibc-2.3.3/arm-softfloat-linux-gnu/lib/gcc/arm-softfloat-linux-gnu/3.4.2/../../../../arm-softfloat-linux-gnu/bin/ld: cannot find -lenca collect2: ld returned 1 exit status make[1]: *** [libzlibrary-gtk.so.0] Error 1 |
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#10 | |
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P.S.: Sorry for the late reply. I have just checked the mail and there was the mobileread report with your message of 13 of Jan! I almost missed it... ![]() |
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