mirror of
https://github.com/alliedmodders/hl2sdk.git
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c5d57c03ee
* Replace protobuf 2.6.1 with 3.21.8 * Update/add protobuf libs * Add CS2 protos * Remove old csgo/dota protos * Add versioned protoc bin * Comment out Valve's `schema` define for now * Use ENetworkDisconnectionReason * Fix-up `offsetof` to avoid errors on some Clang versions
38 lines
1.1 KiB
Plaintext
38 lines
1.1 KiB
Plaintext
dnl Provide AC_USE_SYSTEM_EXTENSIONS for old autoconf machines.
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AC_DEFUN([ACX_USE_SYSTEM_EXTENSIONS],[
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ifdef([AC_USE_SYSTEM_EXTENSIONS],[
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AC_USE_SYSTEM_EXTENSIONS
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],[
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AC_BEFORE([$0], [AC_COMPILE_IFELSE])
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AC_BEFORE([$0], [AC_RUN_IFELSE])
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AC_REQUIRE([AC_GNU_SOURCE])
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AC_REQUIRE([AC_AIX])
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AC_REQUIRE([AC_MINIX])
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AH_VERBATIM([__EXTENSIONS__],
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[/* Enable extensions on Solaris. */
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#ifndef __EXTENSIONS__
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# undef __EXTENSIONS__
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#endif
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#ifndef _POSIX_PTHREAD_SEMANTICS
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# undef _POSIX_PTHREAD_SEMANTICS
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#endif
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#ifndef _TANDEM_SOURCE
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# undef _TANDEM_SOURCE
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#endif])
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AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__],
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[ac_cv_safe_to_define___extensions__],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([
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# define __EXTENSIONS__ 1
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AC_INCLUDES_DEFAULT])],
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[ac_cv_safe_to_define___extensions__=yes],
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[ac_cv_safe_to_define___extensions__=no])])
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test $ac_cv_safe_to_define___extensions__ = yes &&
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AC_DEFINE([__EXTENSIONS__])
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AC_DEFINE([_POSIX_PTHREAD_SEMANTICS])
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AC_DEFINE([_TANDEM_SOURCE])
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])
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])
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