this works in 3.x (which I'm going to upload in a few weeks), so this
has been fixed at some point.
** Changed in: opencv (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/886482
Title:
opencv-doc c examples don't build
Status in opencv package in Ubuntu:
Fix Released
Bug description:
The opencv-doc package includes example source files for opencv,
installed to /usr/share/doc/opencv-doc/examples/c. These fail to
build at the linking stage. For instance:
$ cp /usr/share/doc/opencv-doc/examples/c/edge.c /tmp
$ cd /tmp
$ gcc $(pkg-config --cflags --libs opencv) edge.c -o edge
/tmp/cc9ghzMY.o: In function `cvRound':
edge.c:(.text+0x19): undefined reference to `lrint'
/tmp/cc9ghzMY.o: In function `cvDecRefData':
edge.c:(.text+0xa5a): undefined reference to `cvFree_'
edge.c:(.text+0xacb): undefined reference to `cvFree_'
/tmp/cc9ghzMY.o: In function `cvGetRow':
edge.c:(.text+0xbc1): undefined reference to `cvGetRows'
/tmp/cc9ghzMY.o: In function `cvGetCol':
edge.c:(.text+0xbec): undefined reference to `cvGetCols'
/tmp/cc9ghzMY.o: In function `cvReleaseMatND':
edge.c:(.text+0xbff): undefined reference to `cvReleaseMat'
/tmp/cc9ghzMY.o: In function `cvSubS':
edge.c:(.text+0xd1f): undefined reference to `cvAddS'
/tmp/cc9ghzMY.o: In function `cvCloneSeq':
edge.c:(.text+0xd6d): undefined reference to `cvSeqSlice'
/tmp/cc9ghzMY.o: In function `cvSetNew':
edge.c:(.text+0xdcc): undefined reference to `cvSetAdd'
/tmp/cc9ghzMY.o: In function `cvGetSetElem':
edge.c:(.text+0xe5f): undefined reference to `cvGetSeqElem'
/tmp/cc9ghzMY.o: In function `cvEllipseBox':
edge.c:(.text+0xf5f): undefined reference to `cvEllipse'
/tmp/cc9ghzMY.o: In function `cvFont':
edge.c:(.text+0xfa9): undefined reference to `cvInitFont'
/tmp/cc9ghzMY.o: In function `cvReadIntByName':
edge.c:(.text+0x1057): undefined reference to `cvGetFileNodeByName'
/tmp/cc9ghzMY.o: In function `cvReadRealByName':
edge.c:(.text+0x10e8): undefined reference to `cvGetFileNodeByName'
/tmp/cc9ghzMY.o: In function `cvReadStringByName':
edge.c:(.text+0x1142): undefined reference to `cvGetFileNodeByName'
/tmp/cc9ghzMY.o: In function `cvReadByName':
edge.c:(.text+0x1172): undefined reference to `cvGetFileNodeByName'
edge.c:(.text+0x1188): undefined reference to `cvRead'
/tmp/cc9ghzMY.o: In function `cvCreateSubdivDelaunay2D':
edge.c:(.text+0x1287): undefined reference to `cvCreateSubdiv2D'
edge.c:(.text+0x12b1): undefined reference to `cvInitSubdivDelaunay2D'
/tmp/cc9ghzMY.o: In function `cvCalcHist':
edge.c:(.text+0x13c6): undefined reference to `cvCalcArrHist'
/tmp/cc9ghzMY.o: In function `on_trackbar':
edge.c:(.text+0x14ea): undefined reference to `cvSmooth'
edge.c:(.text+0x1501): undefined reference to `cvNot'
edge.c:(.text+0x1548): undefined reference to `cvCanny'
edge.c:(.text+0x1555): undefined reference to `cvSetZero'
edge.c:(.text+0x1576): undefined reference to `cvCopy'
edge.c:(.text+0x158b): undefined reference to `cvShowImage'
/tmp/cc9ghzMY.o: In function `main':
edge.c:(.text+0x15c8): undefined reference to `cvLoadImage'
edge.c:(.text+0x1628): undefined reference to `cvCreateImage'
edge.c:(.text+0x1675): undefined reference to `cvCreateImage'
edge.c:(.text+0x16c2): undefined reference to `cvCreateImage'
edge.c:(.text+0x16e6): undefined reference to `cvCvtColor'
edge.c:(.text+0x16fa): undefined reference to `cvNamedWindow'
edge.c:(.text+0x1726): undefined reference to `cvCreateTrackbar'
edge.c:(.text+0x173e): undefined reference to `cvWaitKey'
edge.c:(.text+0x174a): undefined reference to `cvReleaseImage'
edge.c:(.text+0x1756): undefined reference to `cvReleaseImage'
edge.c:(.text+0x1762): undefined reference to `cvReleaseImage'
edge.c:(.text+0x176e): undefined reference to `cvDestroyWindow'
collect2: ld returned 1 exit status
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: opencv-doc 2.1.0-7build1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu3
Architecture: i386
Date: Sat Nov 5 09:37:47 2011
Dependencies:
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
PackageArchitecture: all
ProcEnviron:
LANGUAGE=en_GB:en
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/zsh
SourcePackage: opencv
UpgradeStatus: No upgrade log present (probably fresh install)
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