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I emerged mono-1.0.4 and libgdiplus-1.0.4 and have problems with applications
that use System.Drawing.
Exception:
System.DllNotFoundException: gdiplus.dll

This behavior is exactly the same as mentioned in a previous bug:
http://bugs.gentoo.org/show_bug.cgi?id=55916

Additional i tried to add the dll to /etc/mono/config: (I pointed it to
libgdiplus.so)
<configuration>
        <dllmap dll="cygwin1.dll" target="libc.so.6" />
        <dllmap dll="libc" target="libc.so.6" />
        <dllmap dll="libintl" target="libc.so.6" />
        <dllmap dll="libxslt.dll" target="libxslt.so" />
        <dllmap dll="libmySQL.dll" target="libmysqlclient.so" />
        <dllmap dll="odbc32.dll" target="libodbc.so" />
        <dllmap dll="oci" target="clntsh" />
        <dllmap dll="db2cli" target="libdb2_36.so"/>
!!     ->>>>>   <dllmap dll="gdiplus.dll" target="libgdiplus.so"/>
</configuration>




Reproducible: Always
Steps to Reproduce:
1.emerge mono 
2.create a simple program that uses system.drawing
3.start it

Actual Results:  
I got the following exception:
System.DllNotFoundException: gdiplus.dll

Expected Results:  
Find the dll.

Portage 2.0.50-r11 (default-x86-2004.2, gcc-3.3.4, glibc-2.3.3.20040420-r1,
2.6.
8-gentoo-r3)
=================================================================
System uname: 2.6.8-gentoo-r3 i686 AMD Athlon(tm) processor
Gentoo Base System version 1.4.16
Autoconf: sys-devel/autoconf-2.59-r4
Automake: sys-devel/automake-1.8.5-r1
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CFLAGS="-O2 -mcpu=i686 -pipe"
CHOST="i686-pc-linux-gnu"
COMPILER=""
CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config
/usr/kde/3.3
/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config
/us
r/lib/mozilla/defaults/pref /usr/share/config /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-O2 -mcpu=i686 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs ccache sandbox"
GENTOO_MIRRORS="http://gentoo.osuosl.org
http://distro.ibiblio.org/pub/Linux/dis
tributions/gentoo"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X alsa apache2 apm arts avi berkdb bitmap-fonts crypt cups dvd encode esd
f
77 foomaticdb fortran gif gnome gpm gtk gtk2 gtkhtml imlib jpeg libg++ libwww
ma
d mikmod motif mozilla mpeg mysql ncurses nls oggvorbis opengl oss pam pdflib
pe
rl png python quicktime readline sdl slang spell ssl svga tcpd truetype x86
xml2
 xmms xv zlib"

There doesn't need to be a libgdiplus.so.dll, this gets mapped by the runtime
appropriately. Usually this actually means there was a problem loading the .so
file. Can you try doing:

MONO_LOG_LEVEL="debug" mono foo.exe

To get a more verbose output and post the relevant section concerning the
loading of libgdiplus? Thanks.

The problem seems to be that mono searches a file libgdiplus.so.so in
/lib/usr/lib

but i couldnt locate libgdiplus.so.so and the path /lib/usr/lib simply doesnt
exist

Trace:

Mono-INFO: DllImport attempting to load: '/usr/lib/libgdiplus.so'.
Mono-INFO: DllImport loading location: 'lib/usr/lib/libgdiplus.so.so'.
Mono-INFO: DllImport error loading library: 'lib/usr/lib/libgdiplus.so.so:
cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading library: './lib/usr/lib/libgdiplus.so.so'.
Mono-INFO: DllImport error loading library './lib/usr/lib/libgdiplus.so.so:
cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading: '/usr/lib/libgdiplus.so'.
Mono-INFO: DllImport error loading library '/usr/lib/libgdiplus.so: undefined
symbol: XML_GetCurrentLineNumber'.

(bmTest.exe:14146): Mono-WARNING **: DllImport unable to load library
'/usr/lib/libgdiplus.so: undefined symbol: XML_GetCurrentLineNumber'.
Mono-INFO: DllImport attempting to load: '/usr/lib/libgdiplus.so'.
Mono-INFO: DllImport loading location: 'lib/usr/lib/libgdiplus.so.so'.
Mono-INFO: DllImport error loading library: 'lib/usr/lib/libgdiplus.so.so:
cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading library: './lib/usr/lib/libgdiplus.so.so'.
Mono-INFO: DllImport error loading library './lib/usr/lib/libgdiplus.so.so:
cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading: '/usr/lib/libgdiplus.so'.
Mono-INFO: DllImport error loading library '/usr/lib/libgdiplus.so: undefined
symbol: XML_GetCurrentLineNumber'.

(bmTest.exe:14146): Mono-WARNING **: DllImport unable to load library
'/usr/lib/libgdiplus.so: undefined symbol: XML_GetCurrentLineNumber'.
Mono-INFO: DllImport attempting to load: '/usr/lib/libgdiplus.so'.
Mono-INFO: DllImport loading location: 'lib/usr/lib/libgdiplus.so.so'.
Mono-INFO: DllImport error loading library: 'lib/usr/lib/libgdiplus.so.so:
cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading library: './lib/usr/lib/libgdiplus.so.so'.
Mono-INFO: DllImport error loading library './lib/usr/lib/libgdiplus.so.so:
cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading: '/usr/lib/libgdiplus.so'.
Mono-INFO: DllImport error loading library '/usr/lib/libgdiplus.so: undefined
symbol: XML_GetCurrentLineNumber'.

(bmTest.exe:14146): Mono-WARNING **: DllImport unable to load library
'/usr/lib/libgdiplus.so: undefined symbol: XML_GetCurrentLineNumber'.
Mono-INFO: DllImport attempting to load: '/usr/lib/libgdiplus.so'.
Mono-INFO: DllImport loading location: 'lib/usr/lib/libgdiplus.so.so'.
Mono-INFO: DllImport error loading library: 'lib/usr/lib/libgdiplus.so.so:
cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading library: './lib/usr/lib/libgdiplus.so.so'.
Mono-INFO: DllImport error loading library './lib/usr/lib/libgdiplus.so.so:
cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading: '/usr/lib/libgdiplus.so'.
Mono-INFO: DllImport error loading library '/usr/lib/libgdiplus.so: undefined
symbol: XML_GetCurrentLineNumber'.

(bmTest.exe:14146): Mono-WARNING **: DllImport unable to load library
'/usr/lib/libgdiplus.so: undefined symbol: XML_GetCurrentLineNumber'.

Unhandled Exception: System.TypeInitializationException: An exception was
thrown by the type initializer for System.Drawing.GDIPlus --->
System.DllNotFoundException: gdiplus.dll
in <0x00053> (wrapper managed-to-native) System.Drawing.GDIPlus:GdiplusStartup
(ulong&,System.Drawing.GdiplusStartupInput&,System.Drawing.GdiplusStartupOutput&)
in <0x00068> System.Drawing.GDIPlus:.cctor ()
--- End of inner exception stack trace ---

in (unmanaged) System.Drawing.Bitmap:.ctor
(int,int,System.Drawing.Imaging.PixelFormat)
in <0x00059> System.Drawing.Bitmap:.ctor
(int,int,System.Drawing.Imaging.PixelFormat)
in <0x00015> System.Drawing.Bitmap:.ctor (int,int)
in <0x00061> (wrapper remoting-invoke-with-check) System.Drawing.Bitmap:.ctor
(int,int)
in <0x00077> ContactSheetGenerator:Main (string[])

<snip>
Mono-INFO: DllImport error loading library '/usr/lib/libgdiplus.so: undefined symbol: XML_GetCurrentLineNumber'.
</snip>

^ that's actually the problem. It's finding the file, but then having a problem resolving one of the symbols. Can you please post the output of "ldd /usr/lib/libgdiplus.so" for me? Also, what version of libtool do you have installed?

My libtool is: 1.5.2-r5

Where is cairo?
I thougt mono is using it for gdi+ things.(Wondered about that already when i emerged libgdiplus)

ldd /usr/lib/libgdiplus.so
linux-gate.so.1 =>  (0xffffe000)
        libXrender.so.1 => /usr/X11R6/lib/libXrender.so.1 (0x4011f000)
        libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x40127000)
        libXext.so.6 => /usr/X11R6/lib/libXext.so.6 (0x401ee000)
        libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0x401fc000)
        libpng12.so.0 => /usr/lib/libpng12.so.0 (0x4027a000)
        libz.so.1 => /lib/libz.so.1 (0x402aa000)
        libm.so.6 => /lib/libm.so.6 (0x402bb000)
        libpthread.so.0 => /lib/libpthread.so.0 (0x402dd000)
        libc.so.6 => /lib/libc.so.6 (0x4032e000)
        libdl.so.2 => /lib/libdl.so.2 (0x4043e000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x80000000)

I did it the hard way :)
I "fixed" it by pasting this to the 1.0.4 ebuild:
src_unpack() {
	unpack ${A}
	cd ${S}

	# See bug #55916
	einfo "Fixing a libtool problem"
	rm ltmain.sh
	aclocal
	libtoolize --force --copy
}

This is from the ebuild that fixed bug #55916

Then i created an overlay as described here:
http://gentoo-wiki.com/HOWTO_Installing_3rd_Party_Ebuilds
...and reemerged libgdiplus

after that my test apps work.
I hope this helps anyone.

Looks like the patch from bug# 55916 was added to libgdiplus-1.0-r1, then was
removed for libgdiplus-1.0.2 and libgdiplus-1.0.4.  As mentioned by Thomas,
adding the src_unpack() function fixes the problem.  Can this please be added
back in to portage tree?

Okay, re-openning so this doesn't get lost. I'll re-add that libtool fix as
soon as I get back in front of my dev box.

Ok, i've just commited 1.0.4-r1 which includes the same libtool fix from
1.0-r1. Marking FIXED.