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ca84b0177e
Fixes:
http://autobuild.buildroot.net/results/d20/d20eecec8e7b947759185f77a6c8e610dd7393f3/
http://autobuild.buildroot.net/results/ee1/ee15efa8ae3f95244980810155ff7ba9f885a59d/
http://autobuild.buildroot.net/results/aa8/aa80f2fd4c7dd884ea8a1b55ad15a40c7bf40501/
http://autobuild.buildroot.net/results/9aa/9aaa044f78115d7f599ea09669c0d6bface5633e/
This combination is broken since 7.0.4-6.
Since commit a9e228f8ac26 (Implemented a private PNG caNv (canvas) chunk),
PNGsLong gets called unconditionally, but it is only defined if JPEG
support is enabled (which defines JNG_SUPPORTED), breaking the build:
MagickCore/.libs/libMagickCore-7.Q16HDRI.a(MagickCore_libMagickCore_7_Q16HDRI_la-png.o): In function `WriteOnePNGImage':
png.c:(.text+0x748d): undefined reference to `PNGsLong'
png.c:(.text+0x74b7): undefined reference to `PNGsLong'
Fix it by adding a patch unconditionally defining the helper function.
Patch submitted upstream.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
(cherry picked from commit c6f8088fdd)