The source-tree directory is prepended to relative include paths, but this does not work on Windows, where a path may have a drive letter like C: at the start of it.
This breaks SDL which includes an absolute path to the header directory to the C flags, e.g. -IC:/msys64/mingw64/include/SDL2 Add this as a special case to leave these absolute paths alone on Windows. Signed-off-by: Simon Glass <s...@chromium.org> --- (no changes since v1) scripts/Kbuild.include | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index 62e0207f91b4..411a768a7767 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -205,9 +205,10 @@ clean := -f $(srctree)/scripts/Makefile.clean obj hdr-inst := -f $(srctree)/scripts/Makefile.headersinst obj # Prefix -I with $(srctree) if it is not an absolute path. +# Detect C: (C drive) with MSYS2 # skip if -I has no parameter addtree = $(if $(patsubst -I%,%,$(1)), \ -$(if $(filter-out -I/% -I./% -I../%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1)),$(1)),$(1)) +$(if $(filter-out -I/% -I./% -I../% -IC:%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1)),$(1)),$(1)) # Find all -I options and call addtree flags = $(foreach o,$($(1)),$(if $(filter -I%,$(o)),$(call addtree,$(o)),$(o))) -- 2.40.1.495.gc816e09b53d-goog
