On x86_64 the ImageMagick package won't build in mock:

if /bin/sh ./libtool --silent --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I.
-I. -I./magick -I./wand   -I/usr/include/freetype2 -I/usr/include/libxml2  -O2
-g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m64 -mtune=generic -Wall -pthread -MT
coders/coders_png_la-png.lo -MD -MP -MF "coders/.deps/coders_png_la-png.Tpo" -c
-o coders/coders_png_la-png.lo `test -f 'coders/png.c' || echo './'`coders/png.c; \
then mv -f "coders/.deps/coders_png_la-png.Tpo"
"coders/.deps/coders_png_la-png.Plo"; else rm -f
"coders/.deps/coders_png_la-png.Tpo"; exit 1; fi
coders/png.c: In function 'ReadOnePNGImage':
coders/png.c:1709: warning: implicit declaration of function 'png_access_version'
coders/png.c:1718: error: 'png_ptr' undeclared (first use in this function)
coders/png.c:1718: error: (Each undeclared identifier is reported only once
coders/png.c:1718: error: for each function it appears in.)
make: *** [coders/coders_png_la-png.lo] Error 1
error: Bad exit status from /var/tmp/rpm-tmp.95191 (%build)


RPM build errors:
    Bad exit status from /var/tmp/rpm-tmp.95191 (%build)

Attached is the full buildlog