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Bug: magickcore programs no longer link since IM 6.9.0
Posted: 2015-11-04T14:04:42-07:00
by jcupitt
Hi, this is a repost, perhaps my subject line wasn't clear enough before.
The intro to magickcore page has a simple example program:
http://www.imagemagick.org/script/magick-core.php
It suggests you compile with
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cc -o core core.c `pkg-config --cflags --libs MagickCore`
But with recent (6.9 and later? I'm trying 6.9.2-4) imagemagick, this fails with a lot of link errors along the lines of:
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/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `PixelSetQuantumColor'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetClipRule'
.... etc.
It seems MagickCore and MagickWand now contain references to each other's functions. How should I compile MagickCore programs?
This is on Ubuntu 15.10.
Re: Bug: magickcore programs no longer link since IM 6.9.0
Posted: 2015-11-04T18:53:26-07:00
by magick
Works for us, no linking errors. Did you set
- export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
Re: Bug: magickcore programs no longer link since IM 6.9.0
Posted: 2015-11-05T01:46:56-07:00
by jcupitt
Yes, I think I've set everything correctly.
Here's the IM configure summary:
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configure:
==============================================================================
ImageMagick is configured as follows. Please verify that this configuration
matches your expectations.
Host system type: x86_64-unknown-linux-gnu
Build system type: x86_64-unknown-linux-gnu
Option Value
------------------------------------------------------------------------------
Shared libraries --enable-shared=yes yes
Static libraries --enable-static=yes yes
Module support --with-modules=no no
GNU ld --with-gnu-ld=yes yes
Quantum depth --with-quantum-depth=16 16
High Dynamic Range Imagery
--enable-hdri=no no
Install documentation: yes
Delegate Library Configuration:
BZLIB --with-bzlib=yes yes
Autotrace --with-autotrace=no no
DJVU --with-djvu=yes yes
DPS --with-dps=yes no
FFTW --with-fftw=yes yes
FlashPIX --with-fpx=yes no
FontConfig --with-fontconfig=yes yes
FreeType --with-freetype=yes yes
Ghostscript lib --with-gslib=no no
Graphviz --with-gvc=yes yes
JBIG --with-jbig=yes yes
JPEG v1 --with-jpeg=yes yes
LCMS --with-lcms=yes yes
LQR --with-lqr=yes yes
LTDL --with-ltdl=yes no
LZMA --with-lzma=yes yes
Magick++ --with-magick-plus-plus=yes yes
OpenEXR --with-openexr=yes yes
OpenJP2 --with-openjp2=yes no
PANGO --with-pango=yes yes
PERL --with-perl=no no
PNG --with-png=yes yes
RSVG --with-rsvg=no no
TIFF --with-tiff=yes yes
WEBP --with-webp=yes yes
WMF --with-wmf=yes yes
X11 --with-x= yes
XML --with-xml=yes yes
ZLIB --with-zlib=yes yes
Delegate Program Configuration:
GhostPCL None pcl6 (unknown)
GhostXPS None gxps (unknown)
Ghostscript None gs (9.16)
Font Configuration:
Apple fonts --with-apple-font-dir=default none
Dejavu fonts --with-dejavu-font-dir=default none
Ghostscript fonts --with-gs-font-dir=default /usr/share/fonts/type1/gsfonts/
Windows fonts --with-windows-font-dir=default none
X11 Configuration:
X_CFLAGS =
X_PRE_LIBS = -lSM -lICE
X_LIBS =
X_EXTRA_LIBS =
Options used to compile and link:
PREFIX = /home/john/vips
EXEC-PREFIX = /home/john/vips
VERSION = 6.9.2
CC = gcc
CFLAGS = -I/usr/include/libxml2 -I/usr/include/libpng12 -pthread -I/usr/include/pango-1.0 -I/usr/include/cairo -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/libpng12 -I/usr/include/OpenEXR -I/usr/include/lqr-1 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/graphviz -I/usr/include/freetype2 -I/usr/include/freetype2 -pthread -fopenmp -g -Wall -mtune=broadwell -fexceptions -pthread -DMAGICKCORE_HDRI_ENABLE=0 -DMAGICKCORE_QUANTUM_DEPTH=16
CPPFLAGS = -DMAGICKCORE_HDRI_ENABLE=0 -DMAGICKCORE_QUANTUM_DEPTH=16
PCFLAGS =
DEFS = -DHAVE_CONFIG_H
LDFLAGS =
LIBS =
CXX = g++
CXXFLAGS = -g -pthread
FEATURES = DPC Cipher OpenMP
DELEGATES = bzlib djvu mpeg fftw fontconfig freetype jbig jng jpeg lcms lqr lzma openexr pango png ps tiff webp wmf x xml zlib
==============================================================================
I see this for pkg-config:
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$ pkg-config --cflags --libs MagickCore
-fopenmp -DMAGICKCORE_HDRI_ENABLE=0 -DMAGICKCORE_QUANTUM_DEPTH=16 -I/home/john/vips/include/ImageMagick-6 -L/home/john/vips/lib -lMagickCore-6.Q16
But when I try to compile I see this:
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$ cc -o core core.c `pkg-config --cflags --libs MagickCore`
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DestroyPixelWand'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `PixelSetColor'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetStrokeWidth'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawRectangle'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawPushPattern'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetStrokeColor'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawPathLineToAbsolute'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawRoundRectangle'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawAnnotation'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawPathStart'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetClipPath'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawPathClose'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetViewbox'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `PixelSetRedQuantum'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawPopClipPath'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetStrokeAntialias'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DestroyMagickWand'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DestroyDrawingWand'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawColor'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `NewMagickWandFromImage'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawScale'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawLine'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `PixelSetOpacityQuantum'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawRender'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetStrokePatternURL'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetFillPatternURL'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawPushDefs'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawAllocateWand'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawComment'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `PixelSetBlueQuantum'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetFontSize'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetStrokeDashArray'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawPathMoveToAbsolute'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawPushClipPath'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawPopPattern'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawPathFinish'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetTextUnderColor'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetFillColor'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetFont'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `NewPixelWand'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawArc'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawRotate'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `PopDrawingWand'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `PixelSetGreenQuantum'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawTranslate'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetClipRule'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawComposite'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawPathEllipticArcAbsolute'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetStrokeLineJoin'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawPopDefs'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `PushDrawingWand'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawSetStrokeLineCap'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `PixelSetQuantumColor'
/home/john/vips/lib/libMagickCore-6.Q16.so: undefined reference to `DrawEllipse'
collect2: error: ld returned 1 exit status
Re: Bug: magickcore programs no longer link since IM 6.9.0
Posted: 2015-11-05T02:10:39-07:00
by jcupitt
This is with an Ubuntu-installed ImageMagick on the system as well, I don't know if that could be a factor. The system one links fine, it's the 6.9.2 I'm trying to build for testing that's not linking.
I can't easily remove the system one without breaking a lot of stuff, but I did try hiding the ImageMagick.pc and MagickCore.pc files in /usr/lib/x86_64-linux-gnu/pkgconfig and rebuilding 6.9.2. It didn't seem to make any difference.
Re: Bug: magickcore programs no longer link since IM 6.9.0
Posted: 2015-11-06T06:15:34-07:00
by jcupitt
I did a little digging, the problem seems to be that the coders are being linked into libMagickCore.
When libMagickCore-6.Q16.so is linked, the coders are included, and wmf.c uses functions like DrawPathFinish(), which are part of Wand, not Core.
Therefore MagickCore programs will not link with default configure settings, you must use --with-modules.
Should --with-modules be made the default if shared libraries are enabled? It doesn't seem right that MagickCore linking should fail with the default settings.
Alternatively, perhaps wmf.c could be linked into Wand rather than Core, since it depends on Wand functions.
Re: Bug: magickcore programs no longer link since IM 6.9.0
Posted: 2015-11-07T08:05:58-07:00
by magick
We'll update the documentation to reflect the WMF dependency. In the mean-time, use this build command:
- cc -o core core.c `pkg-config --cflags --libs MagickWand`