#2094: [with patch, needs more work] Add jpeg support to gd
-------------------------------+--------------------------------------------
Reporter: boothby | Owner: was
Type: enhancement | Status: new
Priority: major | Milestone: sage-3.1.3
Component: graphics | Resolution:
Keywords: editor_craigcitro |
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Changes (by mhampton):
* summary: [with patch, needs review] Add jpeg support to gd => [with
patch, needs more work] Add jpeg support to gd
Comment:
I am now having problems different from before. The jpeg spkg seems to
install OK, and when installing the gd spkg I get the following
encouraging message from the configuring:
{{{
** Configuration summary for gd 2.0.33:
Support for PNG library: yes
Support for JPEG library: yes
Support for Freetype 2.x library: yes
Support for Fontconfig library: no
Support for Xpm library: no
Support for pthreads: yes
}}}
...but then the build fails, and there is a message:
{{{
*** Warning: linker path does not have real file for library -ljpeg.
*** I have the capability to make that library automatically link in when
*** you link to this library. But I can only do this if you have a
*** shared version of the library, which you do not appear to have
*** because I did check the linker path looking for a file starting
*** with libjpeg and none of the candidates passed a file format test
*** using a file magic. Last file checked:
/Volumes/D/sage-3.1.2/local/lib//libjpeg.a
*** The inter-library dependencies that have been dropped here will be
*** automatically added whenever a program is linked with this library
*** or is declared to -dlopen it.
}}}
...which occurs before the actual error:
{{{
/usr/libexec/gcc/i686-apple-darwin8/4.0.1/ld: Undefined symbols:
_gdImageCreateFromJpeg
_gdImageJpeg
collect2: ld returned 1 exit status
make[2]: *** [annotate] Error 1
make[2]: Leaving directory
`/Volumes/D/sage-3.1.2/spkg/build/gd-2.0.33.p7/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory
`/Volumes/D/sage-3.1.2/spkg/build/gd-2.0.33.p7/src'
make: *** [all] Error 2
Error building gd.
}}}
It would be very nice to have this stuff working; being able to quickly
import images as matrices is something matlab and mathematica users take
for granted. Unfortunately I don't think I have the skills needed to fix
this.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/2094#comment:16>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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