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From:	Brian Inglis <Brian DOT Inglis AT SystematicSw DOT ab DOT ca>
Subject:	Re: netinet/* in Cygwin
Reply-To:	Brian DOT Inglis AT SystematicSw DOT ab DOT ca
To:	cygwin AT cygwin DOT com
References:	<61fcbddd17cbfe370eb3ae95489d17e8 AT ithena DOT net> <4c91c547-1f85-c24d-3404-bbd3d947cb63 AT SystematicSw DOT ab DOT ca> <6cbe355551e6c6bdc6a55645b693fbcf AT ithena DOT net>
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Message-ID:	<90ea37e6-913d-87af-ed4f-8853fec79e29@SystematicSw.ab.ca>
Date:	Fri, 6 Sep 2019 11:39:22 -0600
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On 2019-09-05 00:49, Lukasz Swierczewski wrote:
> W dniu 2019-09-04 18:34, Brian Inglis napisaƂ(a):
>> On 2019-09-04 00:36, Lukasz Swierczewski wrote:
>>> I have question.
>>> I need netinet/* in my C project.
>>> For example:
>>> #include <netinet/icmp6.h>
>>> #include <netinet/ip_icmp.h>
>>> #include <netinet/in.h>
>>> #include <netinet/ip6.h>
>>> Is this available in Cygwin?
>>
>> $ cygcheck -p usr/include/netinet/
>> Found 6 matches for usr/include/netinet/
>> cygwin-devel-3.0.6-1 - cygwin-devel: Core development files
>> cygwin-devel-3.0.7-1 - cygwin-devel: Core development files
>> cygwin-devel-3.1.0-0.3 - cygwin-devel: Core development files
>> cygwin32-2.10.0-1 - cygwin32: Cygwin 32bit toolchain
>> cygwin32-2.6.0-1 - cygwin32: Cygwin 32bit toolchain (installed binaries and
>> support files)
>> cygwin32-2.8.2-1 - cygwin32: Cygwin 32bit toolchain
>>
>> $ zfgrep netinet /etc/setup/cygwin-devel.lst.gz
>> usr/include/netinet/
>> usr/include/netinet/in.h
>> usr/include/netinet/in_systm.h
>> usr/include/netinet/ip.h
>> usr/include/netinet/ip6.h
>> usr/include/netinet/ip_icmp.h
>> usr/include/netinet/tcp.h
>> usr/include/netinet/udp.h
>>
>> Install cygwin-devel package.
>>
>>> There are problems as standard ...
>>> What do you need to do to compile with these libs?
>>
>> In many cases, nothing, as the functions are built into libc in the cygwin dll;
>> otherwise for other libraries, add -l... to your build command line as you would
>> on Unix.

> Thanks!
> It looks like it works ...
> You can tell where I can find:
> #include <linux/types.h>
> #include <linux/errqueue.h>
> Any idea? ;)

Unfortunately, system specific includes like linux/types.h and linux/errqueue.h
make no sense on other systems which do not have those features, although there
are lots of types to choose from on all systems:

$ find /usr/include/{asm,machine,sys} -name _default_types.h \
	-o -name _types.h -o -name types.h -o -name stddef.h \
	-o -name stdint.h -o -name _stdint.h ; \
    ls -1 /usr/include/{inttypes,stdint}.h \
	/lib/gcc/x86_64-pc-cygwin/*/include/std{def,int}.h
/usr/include/asm/types.h
/usr/include/machine/types.h
/usr/include/machine/_default_types.h
/usr/include/machine/_types.h
/usr/include/sys/types.h
/usr/include/sys/_stdint.h
/usr/include/sys/_types.h
/lib/gcc/x86_64-pc-cygwin/7.4.0/include/stddef.h
/lib/gcc/x86_64-pc-cygwin/7.4.0/include/stdint.h
/usr/include/inttypes.h
/usr/include/stdint.h

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

This email may be disturbing to some readers as it contains
too much technical detail. Reader discretion is advised.

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