[Mesa-dev] Can I build mesa swrast on system without GPU? And how I should do it?

[Nathan Kidd]

On 2019-12-17 3:07 a.m., Oleg Gavrilchenko wrote:
> Can I build mesa swrast for my device and how can I do it?
> 
...
> ninja -C build/
> 
> build fail with errors:
> 
> [84/882] Linking target src/mapi/es1api/libGLESv1_CM.so.1.1.0.
> FAILED: src/mapi/es1api/libGLESv1_CM.so.1.1.0
> arm-linux-gnueabihf-gcc  -o src/mapi/es1api/libGLESv1_CM.so.1.1.0
> 'src/mapi/es1api/ffa5f0c@@GLESv1_CM at sha/.._entry.c.o' -Wl,--as-needed
> -Wl,--no-undefined -shared -fPIC -Wl,--start-group
> -Wl,-soname,libGLESv1_CM.so.1 src/mapi/shared-glapi/libglapi.so.0.0.0
> -Wl,--gc-sections -pthread -L/home/oleg/work/z-turn-dvi/sysroot/usr/lib
> -ldrm -lm -ldl -Wl,--end-group '-Wl,-rpath,$ORIGIN/../shared-glapi'
> -Wl,-rpath-link,/home/oleg/src/mesa-19.2.7/build/src/mapi/shared-glapi
> /opt/Xilinx/SDK/2018.2/gnu/aarch32/lin/gcc-arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabihf/7.2.1/../../../../arm-linux-gnueabihf/bin/ld:
> cannot find -ldrm
> collect2: error: ld returned 1 exit status
> 
> DRM option enable in Linux kernel, but I do not install libdrm on my
> system. Should I do it? And how it will work with my fbdev?
> Thank you for answers. And sorry for my English.

I have no experience with connecting Mesa to a custom fbdev, but just
want to note I don't use libdrm in my scenario either but successfully
run builds with a minimal (--disable-<everything>) libdrm linked in just
to avoid upstream diffs. And you'll need libexpat after that.

-Nathan