Created attachment 1254993 [details]
build.log

Created attachment 1254994 [details]
root.log

Created attachment 1254995 [details]
state.log

I've submitted the following to upstream's development mailing list but if anyone else has an idea...

[ 47%] Building CXX object src/libOpenImageIO/CMakeFiles/OpenImageIO.dir/__/rla.imageio/rlaoutput.cpp.o
cd /builddir/build/BUILD/oiio-Release-1.7.10/build/linux/src/libOpenImageIO && /usr/bin/c++   -DEMBED_PLUGINS=1 -DNDEBUG -DOpenImageIO_EXPORTS -DUSE_BOOST_ASIO=1 -DUSE_EXTERNAL_PUGIXML=1 -DUSE_FIELD3D=1 -DUSE_FREETYPE -DUSE_GIF -DUSE_LIBRAW=1 -DUSE_OCIO=1 -DUSE_OPENCV -DUSE_OPENEXR_VERSION2=1 -DUSE_OPENSSL=1 -DUSE_WEBP=1 -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS -I/builddir/build/BUILD/oiio-Release-1.7.10/build/linux/include/OpenImageIO -I/builddir/build/BUILD/oiio-Release-1.7.10/src/include -I/usr/include/OpenEXR -I/usr/include/libraw -I/builddir/build/BUILD/oiio-Release-1.7.10/build/linux/src/libOpenImageIO -I/usr/include/freetype2 -I/usr/include/freetype2/freetype2 -I/usr/include/freetype2/freetype2/freetype  -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mtune=generic -O2 -g -DNDEBUG -fPIC   -Wall -Werror -fno-math-errno -Wno-error=unused-local-typedefs -Wno-unused-local-typedefs -Wno-unused-result -Wno-error=misleading-indentation -std=c++11 -o CMakeFiles/OpenImageIO.dir/__/rla.imageio/rlaoutput.cpp.o -c /builddir/build/BUILD/oiio-Release-1.7.10/src/rla.imageio/rlaoutput.cpp
/builddir/build/BUILD/oiio-Release-1.7.10/src/rla.imageio/rlaoutput.cpp: In member function 'virtual bool OpenImageIO::v1_7::RLAOutput::open(const string&, const OpenImageIO::v1_7::ImageSpec&, OpenImageIO::v1_7::ImageOutput::OpenMode)':
/builddir/build/BUILD/oiio-Release-1.7.10/src/rla.imageio/rlaoutput.cpp:177:1: error: '%.10f' directive output truncated writing between 12 and 321 bytes into a region of size 8 [-Werror=format-truncation=]
 RLAOutput::open (const std::string &name, const ImageSpec &userspec,
 ^~~~~~~~~
In file included from /usr/include/stdio.h:939:0,
                 from /usr/include/c++/7/cstdio:42,
                 from /builddir/build/BUILD/oiio-Release-1.7.10/src/rla.imageio/rlaoutput.cpp:31:
/usr/include/bits/stdio2.h:65:44: note: '__builtin___snprintf_chk' output between 13 and 322 bytes into a destination of size 8
        __bos (__s), __fmt, __va_arg_pack ());
                                            ^

Disable -Werror?

(In reply to Jonathan Wakely from comment #5)
> Disable -Werror?

Yep, some upstreams don't seem to comprehend that -Werror doesn't have a place in production SW. Anyway, this package's upstream at least implemented a cmake option to disable -Werror: STOP_ON_WARNIN.

This at least lets building succeed.


However, there is another issue:
This packages doesn't honor CFLAGS/CXXFLAGS correctly. Instead, tries to examine the compiler version, which results into appending "-std=c++11", instead of using the compiler's and/or specified CFLAGS/CXXFLAGS.

A scratch-build with modifications/work-arounds/hacks applied to resolve these issues can be found here:
https://koji.fedoraproject.org/koji/taskinfo?taskID=17945711

I found the cmake open yesterday and was about to kick off an official build. 

Thanks for finding the c++11 problem.

https://koji.fedoraproject.org/koji/taskinfo?taskID=17953927