integrated libsamplerate-code as 3rd-party-sourcecode for the case libsamplerate is not available
git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@500 0778d3d1-df1d-0410-868b-ea421aaaa00d
This commit is contained in:
393
acinclude.m4
393
acinclude.m4
@@ -297,3 +297,396 @@ AC_SUBST(QASSISTANTCLIENT_LDADD)
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])
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dnl @synopsis AC_C_FIND_ENDIAN
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dnl
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dnl Determine endian-ness of target processor.
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dnl @version 1.1 Mar 03 2002
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dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
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dnl
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dnl Majority written from scratch to replace the standard autoconf macro
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dnl AC_C_BIGENDIAN. Only part remaining from the original it the invocation
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dnl of the AC_TRY_RUN macro.
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dnl
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dnl Permission to use, copy, modify, distribute, and sell this file for any
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dnl purpose is hereby granted without fee, provided that the above copyright
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dnl and this permission notice appear in all copies. No representations are
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dnl made about the suitability of this software for any purpose. It is
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dnl provided "as is" without express or implied warranty.
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dnl Find endian-ness in the following way:
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dnl 1) Look in <endian.h>.
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dnl 2) If 1) fails, look in <sys/types.h> and <sys/param.h>.
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dnl 3) If 1) and 2) fails and not cross compiling run a test program.
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dnl 4) If 1) and 2) fails and cross compiling then guess based on target.
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AC_DEFUN([AC_C_FIND_ENDIAN],
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[AC_CACHE_CHECK(processor byte ordering,
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ac_cv_c_byte_order,
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# Initialize to unknown
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ac_cv_c_byte_order=unknown
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if test x$ac_cv_header_endian_h = xyes ; then
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# First try <endian.h> which should set BYTE_ORDER.
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[AC_TRY_LINK([
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#include <endian.h>
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#if BYTE_ORDER != LITTLE_ENDIAN
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not big endian
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#endif
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], return 0 ;,
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ac_cv_c_byte_order=little
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)]
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[AC_TRY_LINK([
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#include <endian.h>
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#if BYTE_ORDER != BIG_ENDIAN
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not big endian
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#endif
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], return 0 ;,
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ac_cv_c_byte_order=big
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)]
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fi
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if test $ac_cv_c_byte_order = unknown ; then
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[AC_TRY_LINK([
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#include <sys/types.h>
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#include <sys/param.h>
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#if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
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bogus endian macros
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#endif
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], return 0 ;,
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[AC_TRY_LINK([
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#include <sys/types.h>
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#include <sys/param.h>
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#if BYTE_ORDER != LITTLE_ENDIAN
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not big endian
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#endif
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], return 0 ;,
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ac_cv_c_byte_order=little
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)]
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[AC_TRY_LINK([
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#include <sys/types.h>
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#include <sys/param.h>
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#if BYTE_ORDER != LITTLE_ENDIAN
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not big endian
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#endif
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], return 0 ;,
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ac_cv_c_byte_order=little
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)]
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)]
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fi
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if test $ac_cv_c_byte_order = unknown ; then
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if test $cross_compiling = yes ; then
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# This is the last resort. Try to guess the target processor endian-ness
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# by looking at the target CPU type.
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[
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case "$target_cpu" in
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alpha* | i?86* | mipsel* | ia64*)
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ac_cv_c_big_endian=0
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ac_cv_c_little_endian=1
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;;
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m68* | mips* | powerpc* | hppa* | sparc*)
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ac_cv_c_big_endian=1
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ac_cv_c_little_endian=0
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;;
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esac
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]
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else
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AC_TRY_RUN(
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[[
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int main (void)
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{ /* Are we little or big endian? From Harbison&Steele. */
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union
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{ long l ;
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char c [sizeof (long)] ;
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} u ;
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u.l = 1 ;
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return (u.c [sizeof (long) - 1] == 1);
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}
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]], , ac_cv_c_byte_order=big,
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ac_cv_c_byte_order=unknown
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)
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AC_TRY_RUN(
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[[int main (void)
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{ /* Are we little or big endian? From Harbison&Steele. */
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union
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{ long l ;
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char c [sizeof (long)] ;
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} u ;
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u.l = 1 ;
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return (u.c [0] == 1);
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}]], , ac_cv_c_byte_order=little,
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ac_cv_c_byte_order=unknown
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)
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fi
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fi
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)
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]
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if test $ac_cv_c_byte_order = big ; then
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ac_cv_c_big_endian=1
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ac_cv_c_little_endian=0
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elif test $ac_cv_c_byte_order = little ; then
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ac_cv_c_big_endian=0
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ac_cv_c_little_endian=1
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else
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ac_cv_c_big_endian=0
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ac_cv_c_little_endian=0
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AC_MSG_WARN([[*****************************************************************]])
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AC_MSG_WARN([[*** Not able to determine endian-ness of target processor. ]])
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AC_MSG_WARN([[*** The constants CPU_IS_BIG_ENDIAN and CPU_IS_LITTLE_ENDIAN in ]])
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AC_MSG_WARN([[*** src/config.h may need to be hand editied. ]])
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AC_MSG_WARN([[*****************************************************************]])
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fi
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)# AC_C_FIND_ENDIAN
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dnl @synopsis AC_C99_FUNC_LRINT
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dnl
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dnl Check whether C99's lrint function is available.
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dnl @version 1.3 Feb 12 2002
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dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
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dnl
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dnl Permission to use, copy, modify, distribute, and sell this file for any
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dnl purpose is hereby granted without fee, provided that the above copyright
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dnl and this permission notice appear in all copies. No representations are
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dnl made about the suitability of this software for any purpose. It is
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dnl provided "as is" without express or implied warranty.
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dnl
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AC_DEFUN([AC_C99_FUNC_LRINT],
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[AC_CACHE_CHECK(for lrint,
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ac_cv_c99_lrint,
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[
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lrint_save_CFLAGS=$CFLAGS
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CFLAGS="-O2 -lm"
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AC_TRY_LINK([
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#define _ISOC9X_SOURCE 1
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#define _ISOC99_SOURCE 1
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#define __USE_ISOC99 1
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#define __USE_ISOC9X 1
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#include <math.h>
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], if (!lrint(3.14159)) lrint(2.7183);, ac_cv_c99_lrint=yes, ac_cv_c99_lrint=no)
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CFLAGS=$lrint_save_CFLAGS
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])
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if test "$ac_cv_c99_lrint" = yes; then
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AC_DEFINE(HAVE_LRINT, 1,
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[Define if you have C99's lrint function.])
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fi
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])# AC_C99_FUNC_LRINT
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dnl @synopsis AC_C99_FUNC_LRINTF
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dnl
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dnl Check whether C99's lrintf function is available.
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dnl @version 1.3 Feb 12 2002
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dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
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dnl
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dnl Permission to use, copy, modify, distribute, and sell this file for any
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dnl purpose is hereby granted without fee, provided that the above copyright
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dnl and this permission notice appear in all copies. No representations are
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dnl made about the suitability of this software for any purpose. It is
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dnl provided "as is" without express or implied warranty.
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dnl
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AC_DEFUN([AC_C99_FUNC_LRINTF],
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[AC_CACHE_CHECK(for lrintf,
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ac_cv_c99_lrintf,
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[
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lrintf_save_CFLAGS=$CFLAGS
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CFLAGS="-O2 -lm"
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AC_TRY_LINK([
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#define _ISOC9X_SOURCE 1
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#define _ISOC99_SOURCE 1
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#define __USE_ISOC99 1
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#define __USE_ISOC9X 1
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#include <math.h>
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], if (!lrintf(3.14159)) lrintf(2.7183);, ac_cv_c99_lrintf=yes, ac_cv_c99_lrintf=no)
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CFLAGS=$lrintf_save_CFLAGS
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])
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if test "$ac_cv_c99_lrintf" = yes; then
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AC_DEFINE(HAVE_LRINTF, 1,
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[Define if you have C99's lrintf function.])
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fi
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])# AC_C99_FUNC_LRINTF
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dnl @synopsis AC_C99_FUNC_LLRINT
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dnl
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dnl Check whether C99's llrint function is available.
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dnl @version 1.1 Sep 30 2002
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dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
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dnl
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dnl Permission to use, copy, modify, distribute, and sell this file for any
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dnl purpose is hereby granted without fee, provided that the above copyright
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dnl and this permission notice appear in all copies. No representations are
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dnl made about the suitability of this software for any purpose. It is
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dnl provided "as is" without express or implied warranty.
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dnl
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AC_DEFUN([AC_C99_FUNC_LLRINT],
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[AC_CACHE_CHECK(for llrint,
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ac_cv_c99_llrint,
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[
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llrint_save_CFLAGS=$CFLAGS
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CFLAGS="-O2 -lm"
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AC_TRY_LINK([
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#define _ISOC9X_SOURCE 1
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#define _ISOC99_SOURCE 1
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#define __USE_ISOC99 1
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#define __USE_ISOC9X 1
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#include <math.h>
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#include <stdint.h>
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], int64_t x ; x = llrint(3.14159) ;, ac_cv_c99_llrint=yes, ac_cv_c99_llrint=no)
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CFLAGS=$llrint_save_CFLAGS
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])
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if test "$ac_cv_c99_llrint" = yes; then
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AC_DEFINE(HAVE_LLRINT, 1,
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[Define if you have C99's llrint function.])
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fi
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])# AC_C99_FUNC_LLRINT
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dnl @synopsis AC_C_CLIP_MODE
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dnl
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dnl Determine the clipping mode when converting float to int.
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dnl @version 1.0 May 17 2003
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dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
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dnl
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dnl Permission to use, copy, modify, distribute, and sell this file for any
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dnl purpose is hereby granted without fee, provided that the above copyright
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dnl and this permission notice appear in all copies. No representations are
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dnl made about the suitability of this software for any purpose. It is
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dnl provided "as is" without express or implied warranty.
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dnl Find the clipping mode in the following way:
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dnl 1) If we are not cross compiling test it.
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dnl 2) IF we are cross compiling, assume that clipping isn't done correctly.
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AC_DEFUN([AC_C_CLIP_MODE],
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[AC_CACHE_CHECK(processor clipping capabilities,
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ac_cv_c_clip_type,
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# Initialize to unknown
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ac_cv_c_clip_positive=unknown
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ac_cv_c_clip_negative=unknown
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if test $ac_cv_c_clip_positive = unknown ; then
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AC_TRY_RUN(
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[[
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#define _ISOC9X_SOURCE 1
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#define _ISOC99_SOURCE 1
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#define __USE_ISOC99 1
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#define __USE_ISOC9X 1
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#include <math.h>
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int main (void)
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{ double fval ;
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int k, ival ;
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fval = 1.0 * 0x7FFFFFFF ;
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for (k = 0 ; k < 100 ; k++)
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{ ival = (lrint (fval)) >> 24 ;
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if (ival != 127)
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return 1 ;
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fval *= 1.2499999 ;
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} ;
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return 0 ;
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}
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]],
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ac_cv_c_clip_positive=yes,
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ac_cv_c_clip_positive=no,
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ac_cv_c_clip_positive=unknown
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)
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AC_TRY_RUN(
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[[
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#define _ISOC9X_SOURCE 1
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#define _ISOC99_SOURCE 1
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#define __USE_ISOC99 1
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#define __USE_ISOC9X 1
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#include <math.h>
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int main (void)
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{ double fval ;
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int k, ival ;
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fval = -8.0 * 0x10000000 ;
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for (k = 0 ; k < 100 ; k++)
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{ ival = (lrint (fval)) >> 24 ;
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if (ival != -128)
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return 1 ;
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fval *= 1.2499999 ;
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} ;
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return 0 ;
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}
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]],
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ac_cv_c_clip_negative=yes,
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ac_cv_c_clip_negative=no,
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ac_cv_c_clip_negative=unknown
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)
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fi
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if test $ac_cv_c_clip_positive = yes ; then
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ac_cv_c_clip_positive=1
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else
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ac_cv_c_clip_positive=0
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fi
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if test $ac_cv_c_clip_negative = yes ; then
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ac_cv_c_clip_negative=1
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else
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ac_cv_c_clip_negative=0
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fi
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[[
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case "$ac_cv_c_clip_positive$ac_cv_c_clip_negative" in
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"00")
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ac_cv_c_clip_type="none"
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;;
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"10")
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ac_cv_c_clip_type="positive"
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;;
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"01")
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ac_cv_c_clip_type="negative"
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;;
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"11")
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ac_cv_c_clip_type="both"
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;;
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esac
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]]
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)
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]
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)# AC_C_CLIP_MODE
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