#18364: Building libgd fails if libvpx 1.4 is installed
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Reporter: gagern | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.7
Component: packages: standard | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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I currently fail to build sage 6.7.beta1 from scratch:
{{{
libtool: compile: gcc -std=gnu99 -DHAVE_CONFIG_H -I.
-I…/sage/local/include/libpng12 -I…/sage/local/include/freetype2 -g
-fvisibility=hidden -MT webpimg.lo -MD -MP -MF .deps/webpimg.Tpo -c
webpimg.c -fPIC -DPIC -o .libs/webpimg.o
webpimg.c: In function 'VPXEncode':
webpimg.c:714:24: error: 'IMG_FMT_I420' undeclared (first use in this
function)
vpx_img_wrap(&img, IMG_FMT_I420,
^
webpimg.c:714:24: note: each undeclared identifier is reported only once
for each function it appears in
webpimg.c:716:16: error: 'PLANE_Y' undeclared (first use in this function)
img.planes[PLANE_Y] = (uint8*)(Y);
^
webpimg.c:717:16: error: 'PLANE_U' undeclared (first use in this function)
img.planes[PLANE_U] = (uint8*)(U);
^
webpimg.c:718:16: error: 'PLANE_V' undeclared (first use in this function)
img.planes[PLANE_V] = (uint8*)(V);
^
Makefile:773: recipe for target 'webpimg.lo' failed
make[5]: *** [webpimg.lo] Error 1
make[5]: Leaving directory
'…/sage/local/var/tmp/sage/build/libgd-2.1.0.p0/src/src'
Makefile:439: recipe for target 'all' failed
make[4]: *** [all] Error 2
make[4]: Leaving directory
'…/sage/local/var/tmp/sage/build/libgd-2.1.0.p0/src/src'
Makefile:341: recipe for target 'all-recursive' failed
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory
'…/sage/local/var/tmp/sage/build/libgd-2.1.0.p0/src'
Error building gd.
}}}
This is related to the auto-detected configure setting
{{{
Support for VPX library: yes
}}}
Fortunately I've recently encountered the same issue for Gentoo with the
libgd bundled with php ([https://bugs.gentoo.org/show_bug.cgi?id=547310
Gentoo bug #547310]). The issue is related to
[http://git.chromium.org/gitweb/?p=webm/libvpx.git;a=blobdiff;f=vpx/vpx_image.h;h=ef6d1dd3092e5c8e70173a4fc9def62c8eedef01;hp=0b7bb90572da3c0d0048285dffb7ed847f762823;hb=9cdaa3d72eade9ad162ef8f78a93bd8f85c6de10;hpb=0ecc75c81986a277d2e8e387117edfc21cb2fed0
this change] for libvpx, which removed some legacy symbols. Prefixing
those symbols with `VPX_` solves the issue, as done in
[https://github.com/gagern/libgd/commit/d41eb72cd4545c394578332e5c102dee69e02ee8
this commit] to the GD-2.1 branch.
I think we have at least four solutions at our disposal:
1. Fix symbol names in libgd 2.1 by patching in
[https://github.com/gagern/libgd/commit/d41eb72cd4545c394578332e5c102dee69e02ee8
this commit]
2. Explicitely disable libvpx support, to avoid linking against system
library there
3. Bundle libvpx at a given version to become independent of system
library
4. Upgrade to libgd 2.2 (once that's available), which should use libwebp
instead of libvpx according to [https://github.com/libgd/libgd/issues/129
libgd ticket #129]
Which solution would you prefer? 1. differs the least from what we
currently do, but that doesn't neccessarily make it the best solution.
--
Ticket URL: <http://trac.sagemath.org/ticket/18364>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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