buildroot/package/aiccu/Config.in
Bernd Kuhls 30ed9de2fd package/gnutls: disable for static build
The gnutils code uses __attribute__((constructor)) and
__attribute__((destructor)) to call constructor/desctructor when a
shared library is loaded.
Constructor/desctructor are not used when a static library is used
(except when if -Wl,--whole-archive -lgnutls -Wno-whole-archive is
used, not tested).

Even if gnutls initialization (_gnutls_global_init()) may be
called manually, the gnutls maintainer said it's not supported [1].

"Note that static linking applications with gnutls is not something
 supported. gnutls relies on library constructors and destructors
 which are not loaded when linking statically."

Now the gnutls script warns about static linking [2].

So disable gnutls statically by adding "depends on !BR2_STATIC_LIBS"
at Kconfig level and --disable-static in GNUTLS_CONF_OPTS.

Fixes:
[taskd] http://autobuild.buildroot.net/results/c2d/c2dd5c1c9dc87d2943c15e58ee56e67d7375368c
[ffmpeg] http://autobuild.buildroot.net/results/892/8926d319d6d1cd1ee72239ad7d9ca869d2355628
[sngrep] http://autobuild.buildroot.net/results/f7f/f7fb42d3742f6f01000a0d181e0c785640284405

[1] https://gitlab.com/gnutls/gnutls/issues/203
[2] 6b74888679

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
[Romain: merge our two patches together
    add some option comment
    disable static libgnutls.a
    add sngrep autobuilder reference]
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Tested-by: Bernd Kuhls <bernd.kuhls@t-online.de>
[Thomas: do not disable libgnutls.a]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-05-29 22:52:34 +02:00

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config BR2_PACKAGE_AICCU
bool "aiccu"
depends on !BR2_STATIC_LIBS # gnutls
depends on BR2_USE_WCHAR
depends on BR2_TOOLCHAIN_HAS_THREADS
depends on BR2_USE_MMU # fork()
select BR2_PACKAGE_GNUTLS
help
SixXS Automatic IPv6 Connectivity Client Utility
AICCU (Automatic IPv6 Connectivity Client Utility) makes it
easy for users to get IPv6 connectivity. After having
requested an account, tunnel and optionally a subnet, AICCU
can be used to automatically configure the tunnel. AICCU
supports TIC (Tunnel Information & Control protocol), which it
uses for retrieving the tunnel configuration information,
AYIYA, which allows tunnels to be created even behind
firewalls and NAT's.
http://www.sixxs.net/tools/aiccu/
comment "aiccu needs a toolchain w/ wchar, threads, dynamic library"
depends on BR2_USE_MMU
depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS \
|| BR2_STATIC_LIBS