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Auto-generated files have been created by running ./build-aux/bootstrap with Gnulib as at commit 98ca2c063cfe019b673fd0ce81448c919e9c989c (with a date stamp of Thu May 22 17:49:33 2014 +0100), Autoconf 2.69, Automake 1.14.1 and Gettext 0.18.3.
41 lines
1.6 KiB
Plaintext
41 lines
1.6 KiB
Plaintext
# inline.m4 serial 4
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dnl Copyright (C) 2006, 2009-2014 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl Test for the 'inline' keyword or equivalent.
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dnl Define 'inline' to a supported equivalent, or to nothing if not supported,
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dnl like AC_C_INLINE does. Also, define HAVE_INLINE if 'inline' or an
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dnl equivalent is effectively supported, i.e. if the compiler is likely to
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dnl drop unused 'static inline' functions.
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AC_DEFUN([gl_INLINE],
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[
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AC_REQUIRE([AC_C_INLINE])
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AC_CACHE_CHECK([whether the compiler generally respects inline],
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[gl_cv_c_inline_effective],
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[if test $ac_cv_c_inline = no; then
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gl_cv_c_inline_effective=no
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else
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dnl GCC defines __NO_INLINE__ if not optimizing or if -fno-inline is
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dnl specified.
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dnl Use AC_COMPILE_IFELSE here, not AC_EGREP_CPP, because the result
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dnl depends on optimization flags, which can be in CFLAGS.
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dnl (AC_EGREP_CPP looks only at the CPPFLAGS.)
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([[]],
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[[#ifdef __NO_INLINE__
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#error "inline is not effective"
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#endif]])],
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[gl_cv_c_inline_effective=yes],
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[gl_cv_c_inline_effective=no])
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fi
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])
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if test $gl_cv_c_inline_effective = yes; then
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AC_DEFINE([HAVE_INLINE], [1],
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[Define to 1 if the compiler supports one of the keywords
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'inline', '__inline__', '__inline' and effectively inlines
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functions marked as such.])
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fi
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])
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