grfmt_png.cpp:226: error: `png_set_expand_gray_1_2_4_to_8' undeclared (Bug #740)

Added by Valérie Vallet over 14 years ago. Updated about 14 years ago.

Status:Done Start date:
Priority:Low Due date:
Assignee:- % Done:

0%
Category:build/install
Target version:-
Affected version: Operating System:
Difficulty: HW Platform:
Pull request:

Description

Compilation on linux with gcc-4.1.0 fails for
grfmt_png.cpp

/home/vallet/INSTALL/opencv-dev/trunk/opencv/modules/highgui/src/grfmt_png.cpp: In member function @virtual bool cv::PngDecoder::readData(cv::Mat&)':
/home/vallet/INSTALL/opencv-dev/trunk/opencv/modules/highgui/src/grfmt_png.cpp:226: error: @png_set_expand_gray_1_2_4_to_8' was not declared in this scope
/home/vallet/INSTALL/opencv-dev/trunk/opencv/modules/highgui/src/grfmt_png.cpp:226: warning: unused variable 'png_set_expand_gray_1_2_4_to_8'
maker2: * [modules/highgui/CMakeFiles/opencv_highgui.dir/src/grfmt_png.o] Error 1
maker1: * [modules/highgui/CMakeFiles/opencv_highgui.dir/all] Error 2

Associated revisions

Revision 0c64fc61
Added by Andrey Kamaev almost 12 years ago

Merge pull request #740 from evil0sheep:2.4

History

#1
Updated by stathis -- over 14 years ago

Is it picking up an old libpng from the system? You need at least 1.4.0 if I'm not mistaken.

#2
Updated by Vadim Pisarevsky about 14 years ago

probably fixed in r4337

  • Status changed from Open to Done
  • (deleted custom field) set to fixed

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