Re: [libmicrohttpd] Build issue on MINGW

[Christian Grothoff]

Hi Tim,

Well, the --enable-experimental switch was already added to Git master
when I sent the e-mail.  As for doing features in new branches, that is
sometimes done, but in this case the specific goal was to expose the
code to a broad range of build systems to see if there were any compile
errors on some platforms -- intentionally long before putting the code
near production, hence 'noinst' (and building it _last_, so even if it
failed, the rest would just work). Still, I think the
--enable-experimental flag is reasonable at this time.

Happy hacking!

Christian

On 10/23/2018 10:28 AM, Tim Rühsen wrote:
> Hi Christian,
> 
> sorry for answering so late :-(
> 
> Such a switch would indeed be useful if one wants to test/use the latest
> master branch.
> 
> In my case it is using latest master as dependency for CI Testing of
> Wget2. This includes a MinGW CI runner.
> 
> Of course I can checkout the latest release tag, but atm I try to find
> issues in MHD development early.
> 
> There is also the possibility to slightly change the development cycle
> of MHD:
> - Add new a feature in an own branch
> - Push that branch to Gitlab.com to test the code via CI (we already
> created CI runners), optionally create an MR (merge request) for
> discussion/collaboration.
> - When CI succeeds: merging of the feature branch into master (directly
> or via Gitlab UI)
> 
> That way you keep the master branch clean and tested.
> 
> Whatever you decide, let me know and I'll change my build scripts :-)
> 
> Regards, Tim
> 
> 
> On 10/18/18 5:34 PM, Christian Grothoff wrote:
>> Hi Tim,
>>
>> The issue is that in line Makefile.am:10, we have "noinst_" instead of
>> "lib_" because the code is far from complete and it must not yet be
>> installed. That causes the dlname='' issue you describe.
>>
>> The best fix I can propose: I'm adding an option (--enable-experimental)
>> which disables building src/lib/ by default, so that users that don't
>> care about the experimental code don't get disrupted like this.
>>
>> Happy hacking!
>>
>> Christian
>>
>> On 10/18/2018 04:45 PM, Tim Rühsen wrote:
>>> Hi,
>>>
>>> the build on MinGW fails in lib/src/ due to
>>>
>>>         @echo Creating $@ and libmicrohttpd2.exp by $(DLLTOOL)... && \
>>>         dll_name=`$(EGREP) -o dlname=\'.+\' libmicrohttpd2.la` && \
>>>
>>> libmicrohttpd2.la contains
>>>   dlname=''
>>> and thus the egrep (or grep -E) fails.
>>>
>>> I am on Debian unstable and use this sequence in a script:
>>>
>>> unset CC
>>> PREFIX=x86_64-w64-mingw32
>>> export INSTALLDIR="$PWD/$PREFIX"
>>> export PKG_CONFIG_PATH=$INSTALLDIR/lib/pkgconfig
>>> export CPPFLAGS="-I$INSTALLDIR/include"
>>> export LDFLAGS="-L$INSTALLDIR/lib"
>>> export CFLAGS="-O2 -Wall -Wno-format"
>>>
>>> git clone --recursive https://github.com/dlfcn-win32/dlfcn-win32.git
>>> cd dlfcn-win32
>>> ./configure --prefix=$PREFIX --cc=$PREFIX-gcc
>>> make
>>> cp -p libdl.a ../$PREFIX/lib/
>>> cp -p dlfcn.h ../$PREFIX/include/
>>> cd ..
>>>
>>> git clone --recursive https://gnunet.org/git/libmicrohttpd.git
>>> cd libmicrohttpd
>>> ./bootstrap
>>> ./configure --build=x86_64-pc-linux-gnu --host=$PREFIX
>>> --prefix=$INSTALLDIR --disable-doc --disable-examples --enable-shared
>>> make clean
>>> make -j$(nproc)
>>> cd ..
>>>
>>>
>>> Regards, Tim
>>>
>

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