This series fixes a dtc build failure on long source paths and cleans up the now-dead GNU Make 3.x compatibility code in the top-level Makefile.
Patch 1 fixes a build failure where a long $(srctree) makes the HOSTCC/CPP command line for cmd_dtc/cmd_dtco exceed the shell's argument limit, by writing dtc_cpp_flags to a response file and passing @file instead. This relies on the $(file ...) function, which requires GNU Make >= 4.0. Patch 2 raises the enforced minimum GNU Make version to 4.0, adding an explicit "GNU Make >= 4.0 is required" check to the top-level Makefile and dropping the now-dead GNU Make 3.x compatibility branches. Suraj Kakade (2): scripts: pass dtc cpp flags via a GCC response file Makefile: drop GNU Make < 4.0 compatibility code Makefile | 20 +++++--------------- scripts/Makefile.lib | 7 +++++-- 2 files changed, 10 insertions(+), 17 deletions(-) -- 2.43.7
