#3551 sdcc frontend/preprocessor: wrong destination folder for the dependency files

[Tony Pavlov]

-MMD is not passed into the new CC1 preprocessor. it may pass from SDCC into SDCPP, but the later now require -Wp prefix to pass it into CC1, if i understand the toolchain correctly,

-MMD without -Wp prefix makes SDCPP spoil the C source file, it is trying to preprocess! zeroing the file size (already reported in #3541)

when -MMD is passed into the CC1 by means of -Wp prefix, it work, BUT, the dependency .d files do not land beside the .asm and *.o files, but land into the current directory instead, which look not correct.

version:

SDCC : mcs51/z80/z180/r2k/r2ka/r3ka/sm83/tlcs90/ez80_z80/z80n/ds390/pic16/pic14/TININative/ds400/hc08/s08/stm8/pdk13/pdk14/pdk15/mos6502 TD- 4.2.14 #13854 (MINGW32)

[bbbbbr]

(subscribing)

[Felix]

[#3541] has been fixed in trunk. Tony, could you please revisit and/or provide a small test case? I can't reproduce "-MMD is not passed into CC1" and I do not see a connection to -Wp.

thanks

[Tony Pavlov]

sdcc -MMD <other parameters> was not working
sdcc -Wp-MMD <other parameters> was kind of working with the side effects, described above

ok, i will check that when the build host emit the required version

[Felix]

Thanks. I get

$ echo 'int main(){return 0;}' > testfile.c
$ sdcc -MMD -c testfile.c
$ cat testfile.d 
testfile.rel: testfile.c

(And similar with "-Wp -MMD".)

This looks good to me.

[Felix]

pending-fixed with [#3541].