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See PR-1404, git commit #4910d43ab0fc360dbddb1f8a31db2a3ee383b46d in the main NuttX repository.

Custom Boards May Not Need CC, CXX, CPP, LD, STRIP, AR, NM, OBJCOPY, and OBJDUMP Definitions

These make variables were previously defined in many boards' scripts/Make.defs files with copy-paste duplication spanning many hundreds of files. These are now defined in a more central location: arch/*/src/*/Toolchain.defs. Your board's scripts/Make.defs usually includes this file. Boards included in NuttX have been updated, but if you are building NuttX for a custom board, you may need to update your board's scripts/Make.defs file to ensure you build with the correct definitions.

If you have lines that define CC, CXX, CPP, LD, STRIP, AR, NM, OBJCOPY, and OBJDUMP, such as these:

CC = $(CROSSDEV)gcc
CXX = $(CROSSDEV)g++
CPP = $(CROSSDEV)gcc -E -P -x c
LD = $(CROSSDEV)ld
STRIP = $(CROSSDEV)strip --strip-unneeded
AR = $(ARCROSSDEV)ar rcs
NM = $(ARCROSSDEV)nm
OBJCOPY = $(CROSSDEV)objcopy
OBJDUMP = $(CROSSDEV)objdump

You may want to do one of the following:

• If they are redundant to the definitions provided in the included arch/*/src/*/Toolchain.defs, remove these lines, or
• If they are different from the definitions in arch/*/src/*/Toolchain.defs, leave them as-is and they will take precedence.

See PR-1426, git commit #b329e2377dd8816f37ad0408279926829efdf85d in the main NuttX repository.

Known Problems In This Release

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