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the weak hack is needed if -lpthreads is separate library.
so just differentiate with musl and non-musl with __GLIBC__
as an ugly hack.

also include stdint.h to get the standard types

has ugly kludges for ancient glibc headers. remove all the legacy
hacks. makes pciutils builds against musl.

they have horrible hack to make pthread symbols weak, it's unneeded.
patch from sabotage.

the icu configure script auto-detects proper timezone variable,
but it's never used, and the header #ifdef detection is horribly
broken. fix it for sane libc's.

as stated, it's broken by design security wise. and uses obsolete
functions that don't exist in musl. this fixes musl build.

this fixes build on musl.

fixes musl build, patch from sabotage.

fix various idiotic constructs. patches are mostly from sabotage,
but some I wrote myself too.

in alpine we have gnu gettext with libintl, so remove the dummy
wrappers as they would otherwise cause conflicts.

Display route path using TCP probes

ruby does not work witout it

fixes #2261