Hi, I've just created "configure needs a way to customize compiler/linker options for the "build" compiler" (https://bugs.openjdk.java.net/browse/JDK-8029375).
Matthias and I will work on a patch. Regards, Volker On Mon, Dec 2, 2013 at 9:27 AM, Erik Joelsson <erik.joels...@oracle.com> wrote: > > On 2013-11-29 14:56, Baesken, Matthias wrote: >>> >>> We haven't had the need to customize the compiler or >>> link args for these yet, but I don't see why there shouldn't be a >>> variable from configure that that would enable customization. >> >> Would this be done with another --with... configure option ? >> Should we provide a change for this ? > > Yes, it would. I would say the first step would be creating a bug for it. Of > course providing a patch will make it more likely to be fixed sooner too. > > /Erik > >> Matthias >> >> >> -----Original Message----- >> From: Erik Joelsson [mailto:erik.joels...@oracle.com] >> Sent: Montag, 25. November 2013 10:37 >> To: David Holmes; Baesken, Matthias >> Cc: build-dev@openjdk.java.net >> Subject: Re: jdk8 extra c/cxx - flags settings >> >> >> On 2013-11-25 03:01, David Holmes wrote: >>> >>> Hi Matthias, >>> >>> On 22/11/2013 10:55 PM, Baesken, Matthias wrote: >>>> >>>> I had the need for setting additional C/C++ compilation flags in my >>>> OpenJDK8 build. >>>> It seems they are used for most jdk C/C++ compilation, but at least >>>> the generators from >>>> >>>> jdk/makefiles/gensrc/GensrcMisc.gmk >>>> >>>> seem to be an exception. >>> >>> The "extra flags' variables are intended for use when compiling the >>> actual JDK sources, not for compiling auxiliary tools used during the >>> build process. There is currently no means, that I am aware of, to >>> customize those invocations. >>> >>> To expand further on this the primary role of the "extra flags" is to >>> provide values needed for cross-compilation of the JDK sources. I'm >>> sure you can see that it wouldn't make sense to pass cross-compiler >>> options to the compilation of the build tools on the host build machine. >>> >> David is correct, these tools are handled differently due to being >> compiled by the "build" compiler rather than the "target" compiler when >> cross compiling. We haven't had the need to customize the compiler or >> link args for these yet, but I don't see why there shouldn't be a >> variable from configure that that would enable customization. >> >> /Erik >>> >>> David >>> ----- >>> >>>> Example : >>>> >>>> configure --with-extra-cflags=-DTESTMYEXTRAFLAGC >>>> --with-extra-cxxflags=-DTESTMYEXTRAFLAGCXX >>>> >>>> does not lead to the expected flags in the build for >>>> genSocketOptionRegistry.c : >>>> >>>> ... >>>> /usr/local/bin/gcc -DTHIS_FILE='"genSocketOptionRegistry.c"' -c -MMD >>>> -MF >>>> >>>> /mydir/open_jdk/jdk8/linuxx86_64_opt/jdk/gensrc/genSocketOptionRegistry/genSocketOptionRegistry.d >>>> -o >>>> >>>> /mydir/open_jdk/jdk8/linuxx86_64_opt/jdk/gensrc/genSocketOptionRegistry/genSocketOptionRegistry.o >>>> >>>> /mydir/open_jdk/jdk8/openjdk8/jdk/src/share/native/sun/nio/ch/genSocketOptionRegistry.c >>>> >>>> ... >>>> >>>> (while the flags show up for "normal" C/C++ files .) >>>> >>>> Is there another option (available / planned?) to configure the >>>> extra C/C++ compile flags for this special case ? >>>> >>>> >>>> Thanks, >>>> Matthias >>>> >
