Command line: 
Global lib dirs: [] [/home/buildroot/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/lib/gcc/i586-buildroot-linux-musl/8.3.0 /home/buildroot/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/lib/gcc /home/buildroot/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/i586-buildroot-linux-musl/lib /home/buildroot/autobuild/run/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot/lib /home/buildroot/autobuild/run/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot/usr/lib]
Global inc dirs: [] [/home/buildroot/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/i586-buildroot-linux-musl/include/c++/8.3.0 /home/buildroot/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/i586-buildroot-linux-musl/include/c++/8.3.0/i586-buildroot-linux-musl /home/buildroot/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/i586-buildroot-linux-musl/include/c++/8.3.0/backward /home/buildroot/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/i586-buildroot-linux-musl/include /home/buildroot/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/lib/gcc/i586-buildroot-linux-musl/8.3.0/include /home/buildroot/autobuild/run/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot/usr/include]
looking for library jasper
Trying source 0 (type inline) of library jasper ...
+ cd /home/buildroot/autobuild/run/instance-2/output-1/build/qt5imageformats-5.12.8/config.tests/jasper && PKG_CONFIG_SYSROOT_DIR=/home/buildroot/autobuild/run/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot PKG_CONFIG_LIBDIR=/home/buildroot/autobuild/run/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot/usr/lib/pkgconfig:/home/buildroot/autobuild/run/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot/usr/share/pkgconfig:/home/buildroot/autobuild/run/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot/usr/lib/i586-buildroot-linux-musl/pkgconfig /home/buildroot/autobuild/run/instance-2/output-1/host/bin/qmake "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += shared warn_off console single_arch" -early "CONFIG += cross_compile" 'QMAKE_USE += jasper' 'QMAKE_LIBS_JASPER = /home/buildroot/autobuild/run/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot/usr/lib/libjasper.so' /home/buildroot/autobuild/run/instance-2/output-1/build/qt5imageformats-5.12.8/config.tests/jasper
> Info: creating stash file /home/buildroot/autobuild/run/instance-2/output-1/build/qt5imageformats-5.12.8/config.tests/.qmake.stash
+ cd /home/buildroot/autobuild/run/instance-2/output-1/build/qt5imageformats-5.12.8/config.tests/jasper && MAKEFLAGS= make
> make[1]: Entering directory `/home/buildroot/autobuild/run/instance-2/output-1/build/qt5imageformats-5.12.8/config.tests/jasper'
> /home/buildroot/autobuild/run/instance-2/output-1/host/bin/i586-linux-g++ -c -pipe -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os --sysroot=/home/buildroot/autobuild/run/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot -w -fPIC  -I. -I/home/buildroot/autobuild/run/instance-2/output-1/host/mkspecs/devices/linux-buildroot-g++ -o main.o main.cpp
> /home/buildroot/autobuild/run/instance-2/output-1/host/bin/i586-linux-g++ --sysroot=/home/buildroot/autobuild/run/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot -Wl,-O1 -o jasper main.o   -latomic /home/buildroot/autobuild/run/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot/usr/lib/libjasper.so  -lrt -lpthread -ldl 
> make[1]: Leaving directory `/home/buildroot/autobuild/run/instance-2/output-1/build/qt5imageformats-5.12.8/config.tests/jasper'
 => source accepted.
test config.qtimageformats_imageformats.libraries.jasper succeeded
looking for library mng
Trying source 0 (type inline) of library mng ...
None of [libmng.so libmng.a] found in [] and global paths.
  => source produced no result.
test config.qtimageformats_imageformats.libraries.mng FAILED
looking for library tiff
Trying source 0 (type inline) of library tiff ...
None of [libtiff.so libtiff.a] found in [] and global paths.
  => source produced no result.
test config.qtimageformats_imageformats.libraries.tiff FAILED
looking for library webp
Trying source 0 (type inline) of library webp ...
None of [libwebp.so libwebp.a] found in [] and global paths.
None of [libwebpdemux.so libwebpdemux.a] found in [] and global paths.
  => source produced no result.
test config.qtimageformats_imageformats.libraries.webp FAILED