flex tries to execute:
/data/oe/build/tmp-eglibc/sysroots/x86_64-linux/usr/bin/m4
As workaround you can:
mkdir -p /data/oe/build/tmp-eglibc/sysroots/x86_64-linux/usr/bin/ ln -s /usr/bin/m4 /data/oe/build/tmp-eglibc/sysroots/x86_64-linux/usr/bin/
So this is a bug how OE builds flex.
flex tries to execute:
/data/oe/ build/tmp- eglibc/ sysroots/ x86_64- linux/usr/ bin/m4
As workaround you can:
mkdir -p /data/oe/ build/tmp- eglibc/ sysroots/ x86_64- linux/usr/ bin/ build/tmp- eglibc/ sysroots/ x86_64- linux/usr/ bin/
ln -s /usr/bin/m4 /data/oe/
So this is a bug how OE builds flex.