问题 I'm installing RTEMS in Ubuntu 19.10. In the last step of https://docs.rtems.org/releases/rtems-docs-4.11.3/user/installation/index.html#rtems-tools-and-kernel (../source-builder/sb-set-builder --prefix=/opt/rtems/4.11 4.11/rtems-i386) it shows next error message (I've deleted the first part of the report because it 's impossible to post more than 30000 characteres): [..] ../../gcc-4.9.3/gcc/lto-compress.c:28:10: fatal error: zlib.h: No such file or directory 28 | #include <zlib.h> | ^~~~~~~~