[U-Boot] [PATCH v6 18/20] Adjust dependency rules to permit per-file flags

[Wolfgang Denk]

Dear Simon Glass,

In message <1318270953-32482-19-git-send-email-sjg at chromium.org> you wrote:
> The dependency rules are currently done in a shell 'for' loop. This does not
> permit Makefile variables to adjust preprocessor flags as is done with normal
> compile flags, using the CFLAGS_path/file.o syntax.
> 
> This change moves the dependency generation into the Makefile itself, and
> permits a CPPFLAGS_path/file.o to adjust preprocessor flags on a file or
> directory basis.
> 
> The CPPFLAGS_... variable is also folded into CFLAGS during the build.
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>

This commit breaks building a number of PPC boards like that:

Configuring for acadia_nand - Board: acadia, Options: NAND_U_BOOT,SYS_TEXT_BASE=0x01000000
ppc_6xx-gcc: /work/wd/tmp-ppc/nand_spl/board/amcc/acadia/start.S: No such file or directory
ppc_6xx-gcc: no input files
ppc_6xx-gcc: /work/wd/tmp-ppc/nand_spl/board/amcc/acadia/resetvec.S: No such file or directory
ppc_6xx-gcc: no input files
ppc_6xx-gcc: /work/wd/tmp-ppc/nand_spl/board/amcc/acadia/cache.S: No such file or directory
ppc_6xx-gcc: no input files
ppc_6xx-gcc: /work/wd/tmp-ppc/nand_spl/board/amcc/acadia/gpio.c: No such file or directory
ppc_6xx-gcc: no input files
ppc_6xx-gcc: /work/wd/tmp-ppc/nand_spl/board/amcc/acadia/nand_boot.c: No such file or directory
ppc_6xx-gcc: no input files
ppc_6xx-gcc: /work/wd/tmp-ppc/nand_spl/board/amcc/acadia/nand_ecc.c: No such file or directory
ppc_6xx-gcc: no input files
ppc_6xx-gcc: /work/wd/tmp-ppc/nand_spl/board/amcc/acadia/memory.c: No such file or directory
ppc_6xx-gcc: no input files
ppc_6xx-gcc: /work/wd/tmp-ppc/nand_spl/board/amcc/acadia/ndfc.c: No such file or directory
ppc_6xx-gcc: no input files
ppc_6xx-gcc: /work/wd/tmp-ppc/nand_spl/board/amcc/acadia/pll.c: No such file or directory
ppc_6xx-gcc: no input files
make[1]: *** No rule to make target `/work/wd/tmp-ppc/nand_spl/board/amcc/acadia/.depend', needed by `all'.  Stop.


Affected boards:

	MPC8313ERDB_NAND_33     P1020RDB_NAND           SIMPC8313_LP
	MPC8313ERDB_NAND_66     P1021RDB-PC_36BIT_NAND  SIMPC8313_SP
	MPC8315ERDB_NAND        P1021RDB-PC_NAND        acadia_nand
	MPC8536DS_NAND          P1023RDS_NAND           bamboo_nand
	MPC8569MDS_NAND         P1024RDB_NAND           canyonlands_nand
	MPC8572DS_NAND          P1025RDB_NAND           glacier_nand
	P1010RDB_36BIT_NAND     P2010RDB_NAND           haleakala_nand
	P1010RDB_NAND           P2020RDB-PC_36BIT_NAND  kilauea_nand
	P1011RDB_NAND           P2020RDB-PC_NAND        rainier_nand
	P1020RDB-PC_36BIT_NAND  P2020RDB_NAND           sequoia_nand
	P1020RDB-PC_NAND

Please fix.

Best regards,

Wolfgang Denk

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