third_party/protobuf/m4/ac_system_extensions.m4 - Issue 1842653006: Update //third_party/protobuf to version 3.

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Side by Side Diff: third_party/protobuf/m4/ac_system_extensions.m4

Issue 1842653006: Update //third_party/protobuf to version 3. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: merge Created 4 years, 8 months ago

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	1 dnl Provide AC_USE_SYSTEM_EXTENSIONS for old autoconf machines.

	2 AC_DEFUN([ACX_USE_SYSTEM_EXTENSIONS],[

	3 ifdef([AC_USE_SYSTEM_EXTENSIONS],[

	4 AC_USE_SYSTEM_EXTENSIONS

	5 ],[

	6 AC_BEFORE([$0], [AC_COMPILE_IFELSE])

	7 AC_BEFORE([$0], [AC_RUN_IFELSE])

	8

	9 AC_REQUIRE([AC_GNU_SOURCE])

	10 AC_REQUIRE([AC_AIX])

	11 AC_REQUIRE([AC_MINIX])

	12

	13 AH_VERBATIM([__EXTENSIONS__],

	14 [/* Enable extensions on Solaris. */

	15 #ifndef __EXTENSIONS__

	16 # undef __EXTENSIONS__

	17 #endif

	18 #ifndef _POSIX_PTHREAD_SEMANTICS

	19 # undef _POSIX_PTHREAD_SEMANTICS

	20 #endif

	21 #ifndef _TANDEM_SOURCE

	22 # undef _TANDEM_SOURCE

	23 #endif])

	24 AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__],

	25 [ac_cv_safe_to_define___extensions__],

	26 [AC_COMPILE_IFELSE(

	27 [AC_LANG_PROGRAM([

	28 # define __EXTENSIONS__ 1

	29 AC_INCLUDES_DEFAULT])],

	30 [ac_cv_safe_to_define___extensions__=yes],

	31 [ac_cv_safe_to_define___extensions__=no])])

	32 test $ac_cv_safe_to_define___extensions__ = yes &&

	33 AC_DEFINE([__EXTENSIONS__])

	34 AC_DEFINE([_POSIX_PTHREAD_SEMANTICS])

	35 AC_DEFINE([_TANDEM_SOURCE])

	36 ])

	37 ])

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