Experimental Physics and
Industrial Control System

Mark Rivers <[email protected]> · Wed, 12 Mar 2014 15:48:29 +0000

Hi Ben,

Here is how I have done this.

- Create an os/$(OS_CLASS) subdirectory.

For example:

corvette:areaDetector/ADBinaries/hdf5Support>ls os/WIN32/
COPYING       H5DSpublic.h  H5FDcore.h    H5FDmpi.h       H5FDpublic.h   H5Fpublic.h   H5LTpublic.h  H5PTpublic.h  H5TBpublic.h  H5overflow.h    H5public.h
H5ACpublic.h  H5Dpublic.h   H5FDdirect.h  H5FDmpio.h      H5FDsec2.h     H5Gpublic.h   H5Lpublic.h   H5Ppublic.h   H5Tpublic.h   H5pubconf.h     H5version.h
H5Apublic.h   H5Epubgen.h   H5FDfamily.h  H5FDmpiposix.h  H5FDstdio.h    H5IMpublic.h  H5MMpublic.h  H5Rpublic.h   H5Zpublic.h   H5pubconf_32.h  hdf5.h
H5Cpublic.h   H5Epublic.h   H5FDlog.h     H5FDmulti.h     H5FDwindows.h  H5Ipublic.h   H5Opublic.h   H5Spublic.h   H5api_adpt.h  H5pubconf_64.h  hdf5_hl.h

Then your Makefile can have this:

corvette:areaDetector/ADBinaries/hdf5Support>ls os/WIN32/
COPYING       H5DSpublic.h  H5FDcore.h    H5FDmpi.h       H5FDpublic.h   H5Fpublic.h   H5LTpublic.h  H5PTpublic.h  H5TBpublic.h  H5overflow.h    H5public.h
H5ACpublic.h  H5Dpublic.h   H5FDdirect.h  H5FDmpio.h      H5FDsec2.h     H5Gpublic.h   H5Lpublic.h   H5Ppublic.h   H5Tpublic.h   H5pubconf.h     H5version.h
H5Apublic.h   H5Epubgen.h   H5FDfamily.h  H5FDmpiposix.h  H5FDstdio.h    H5IMpublic.h  H5MMpublic.h  H5Rpublic.h   H5Zpublic.h   H5pubconf_32.h  hdf5.h
H5Cpublic.h   H5Epublic.h   H5FDlog.h     H5FDmulti.h     H5FDwindows.h  H5Ipublic.h   H5Opublic.h   H5Spublic.h   H5api_adpt.h  H5pubconf_64.h  hdf5_hl.h

This works fine with standard base I believe, including with "make -j".

Mark

________________________________________
From: [email protected] [[email protected]] on behalf of Benjamin Franksen [[email protected]]
Sent: Wednesday, March 12, 2014 10:35 AM
To: [email protected]
Subject: Another build-system bug in 3.14.12

Hi

I tried to fix the INC_<osclass> problem "by hand" like this:

ifeq ($(OS_CLASS),vxWorks)
inc: $(INSTALL_INCLUDE)/os/$(OS_CLASS)/bla.h
endif

instead of defining INC_vxWorks. This seems to work.

Now, in my real application the build was still broken, but only when
using parallel make i.e. make -j. I reproduced this in my cut-down
example with the following Makefile:

"""
TOP = ..
include $(TOP)/configure/CONFIG
#-----------------------------------------------
#  ADD MACRO DEFINITIONS AFTER THIS LINE

inc: $(INSTALL_INCLUDE)/os/$(OS_CLASS)/bla.h

LIBRARY_IOC += bla

bla_SRCS += bla.c

include $(TOP)/configure/RULES
#-----------------------------------------------
#  ADD RULES AFTER THIS LINE

bla.h:
        sleep 1
        echo "struct x {int y; };" > bla.h
"""

(The bla.c is trivial and includes bla.h).

This fails with

franksen@tiber: ~/tmp/inc-bug > make -sj distclean && make -sj
../bla.c:1:17: fatal error: bla.h: No such file or directory
compilation terminated.
make[2]: *** [bla.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [install.linux-x86] Error 2
make: *** [bugApp.install] Error 2

However, it works if I add an explicit dependency in the Makefile:

bla.o: bla.h

Inspecting the generated dependency makefile snippets shows why the
parallel build fails: they are empty:

franksen@tiber: ~/tmp/inc-bug > find -name *.d
./bugApp/O.RTEMS-mvme2100/bla.d
./bugApp/O.RTEMS-mvme5500/bla.d
franksen@tiber: ~/tmp/inc-bug > cat ./bugApp/O.RTEMS-mvme2100/bla.d
franksen@tiber: ~/tmp/inc-bug > cat ./bugApp/O.RTEMS-mvme5500/bla.d

Cheers
Ben
--
"Make it so they have to reboot after every typo." ― Scott Adams

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System