<p></p>
<blockquote>
<p>D="" <br>
READELF="/srv/storage/hthiery/buildroot/output/host/bin/aarch64-buildroot-linux-gnu-readelf" <br>
CC="arm-linux-gnueabi-gcc" <br>
CFLAGS="-DHAVE_CONFIG_H   -I./linux/aarch64 -I./linux/aarch64 -I./linux -I./linux -I. -I.      -DMPERS_IS_m32" <br>
CPP="/srv/storage/hthiery/buildroot/output/host/bin/aarch64-buildroot-linux-gnu-cpp" <br>
CPPFLAGS="-DHAVE_CONFIG_H   -I./linux/aarch64 -I./linux/aarch64 -I./linux -I./linux -I. -I.      -DIN_MPERS -DMPERS_IS_m32" <br>
./mpers.sh m32 "-std=gnu99 " $f || exit; \</p>
</blockquote>
<p>CPP doesn't match CC, this doesn't look correct.</p>
<blockquote>
<p>mpers-m32/kernel_v4l2_buffer_t.c:16:23: error: invalid application of 'sizeof' to incomplete type 'struct v4l2_meta_format'</p>
</blockquote>
<p>Apparently, here it uses host kernel headers instead of the target ones, and the former don't provide a definition of struct v4l2_meta_format while the latter do.</p>
<p>This is likely a strace configure issue.</p>

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