ref: 4eedd1abedc7d472944ed1aed5396e5bb6a5104f
parent: 5464b8948e759d0d3a219c783a725be5a53be2fe
author: Erik de Castro Lopo <erikd@mega-nerd.com>
date: Sat Apr 11 03:48:29 EDT 2009
Add new files to M4/ directory to be used instead of acinclude.m4.
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-04-11 Erik de Castro Lopo <erikd AT mega-nerd DOT com>
+
+ * M4/check_signal.m4 M4/clip_mode.m4 M4/lrint.m4 M4/lrintf.m4
+ New files used instead of acinclude.m4.
+
2009-04-03 Erik de Castro Lopo <erikd AT mega-nerd DOT com>
* src/samplerate.h
--- /dev/null
+++ b/M4/check_signal.m4
@@ -1,0 +1,26 @@
+dnl @synopsis AC_CHECK_SIGNAL(SIGNAME)
+dnl
+dnl
+dnl @category C
+dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
+dnl @version 1.0 Jul 07 2007
+
+AC_DEFUN([AC_CHECK_SIGNAL],
+[AC_CACHE_CHECK(for $1,
+ ac_cv_signal_$1,
+[
+AC_TRY_LINK([
+#include <signal.h>
+
+], signal($1, SIG_DFL) ;, ac_cv_signal_$1=yes, ac_cv_signal_$1=no)
+
+])
+
+if test "$ac_cv_signal_$1" = yes; then
+ AC_DEFINE(HAVE_$1, 1,
+ [Define if you have signal $1.])
+fi
+])# AC_CHECK_SIGNAL
+
+
+## AC_CHECK_SIGNALS
--- /dev/null
+++ b/M4/clip_mode.m4
@@ -1,0 +1,124 @@
+dnl @synopsis AC_C_CLIP_MODE
+dnl
+dnl Determine the clipping mode when converting float to int.
+dnl @version 1.0 May 17 2003
+dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
+dnl
+dnl Permission to use, copy, modify, distribute, and sell this file for any
+dnl purpose is hereby granted without fee, provided that the above copyright
+dnl and this permission notice appear in all copies. No representations are
+dnl made about the suitability of this software for any purpose. It is
+dnl provided "as is" without express or implied warranty.
+
+
+
+
+
+
+
+dnl Find the clipping mode in the following way:
+dnl 1) If we are not cross compiling test it.
+dnl 2) IF we are cross compiling, assume that clipping isn't done correctly.
+
+AC_DEFUN([AC_C_CLIP_MODE],
+[AC_CACHE_CHECK(processor clipping capabilities,
+ ac_cv_c_clip_type,
+
+# Initialize to unknown
+ac_cv_c_clip_positive=unknown
+ac_cv_c_clip_negative=unknown
+
+
+if test $ac_cv_c_clip_positive = unknown ; then
+ AC_TRY_RUN(
+ [[
+ #define _ISOC9X_SOURCE 1
+ #define _ISOC99_SOURCE 1
+ #define __USE_ISOC99 1
+ #define __USE_ISOC9X 1
+ #include <math.h>
+ int main (void)
+ { double fval ;+ int k, ival ;
+
+ fval = 1.0 * 0x7FFFFFFF ;
+ for (k = 0 ; k < 100 ; k++)
+ { ival = (lrint (fval)) >> 24 ;+ if (ival != 127)
+ return 1 ;
+
+ fval *= 1.2499999 ;
+ } ;
+
+ return 0 ;
+ }
+ ]],
+ ac_cv_c_clip_positive=yes,
+ ac_cv_c_clip_positive=no,
+ ac_cv_c_clip_positive=unknown
+ )
+
+ AC_TRY_RUN(
+ [[
+ #define _ISOC9X_SOURCE 1
+ #define _ISOC99_SOURCE 1
+ #define __USE_ISOC99 1
+ #define __USE_ISOC9X 1
+ #include <math.h>
+ int main (void)
+ { double fval ;+ int k, ival ;
+
+ fval = -8.0 * 0x10000000 ;
+ for (k = 0 ; k < 100 ; k++)
+ { ival = (lrint (fval)) >> 24 ;+ if (ival != -128)
+ return 1 ;
+
+ fval *= 1.2499999 ;
+ } ;
+
+ return 0 ;
+ }
+ ]],
+ ac_cv_c_clip_negative=yes,
+ ac_cv_c_clip_negative=no,
+ ac_cv_c_clip_negative=unknown
+ )
+ fi
+
+if test $ac_cv_c_clip_positive = yes ; then
+ ac_cv_c_clip_positive=1
+else
+ ac_cv_c_clip_positive=0
+ fi
+
+if test $ac_cv_c_clip_negative = yes ; then
+ ac_cv_c_clip_negative=1
+else
+ ac_cv_c_clip_negative=0
+ fi
+
+[[
+case "$ac_cv_c_clip_positive$ac_cv_c_clip_negative" in
+ "00")
+ ac_cv_c_clip_type="none"
+ ;;
+ "10")
+ ac_cv_c_clip_type="positive"
+ ;;
+ "01")
+ ac_cv_c_clip_type="negative"
+ ;;
+ "11")
+ ac_cv_c_clip_type="both"
+ ;;
+ esac
+ ]]
+
+)
+]
+
+)# AC_C_CLIP_MODE
+
+
--- /dev/null
+++ b/M4/lrint.m4
@@ -1,0 +1,37 @@
+dnl @synopsis AC_C99_FUNC_LRINT
+dnl
+dnl Check whether C99's lrint function is available.
+dnl @version 1.3 Feb 12 2002
+dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
+dnl
+dnl Permission to use, copy, modify, distribute, and sell this file for any
+dnl purpose is hereby granted without fee, provided that the above copyright
+dnl and this permission notice appear in all copies. No representations are
+dnl made about the suitability of this software for any purpose. It is
+dnl provided "as is" without express or implied warranty.
+dnl
+AC_DEFUN([AC_C99_FUNC_LRINT],
+[AC_CACHE_CHECK(for lrint,
+ ac_cv_c99_lrint,
+[
+lrint_save_CFLAGS=$CFLAGS
+CFLAGS="-lm"
+AC_TRY_LINK([
+#define _ISOC9X_SOURCE 1
+#define _ISOC99_SOURCE 1
+#define __USE_ISOC99 1
+#define __USE_ISOC9X 1
+
+#include <math.h>
+], if (!lrint(3.14159)) lrint(2.7183);, ac_cv_c99_lrint=yes, ac_cv_c99_lrint=no)
+
+CFLAGS=$lrint_save_CFLAGS
+
+])
+
+if test "$ac_cv_c99_lrint" = yes; then
+ AC_DEFINE(HAVE_LRINT, 1,
+ [Define if you have C99's lrint function.])
+fi
+])# AC_C99_FUNC_LRINT
+
--- /dev/null
+++ b/M4/lrintf.m4
@@ -1,0 +1,37 @@
+dnl @synopsis AC_C99_FUNC_LRINTF
+dnl
+dnl Check whether C99's lrintf function is available.
+dnl @version 1.3 Feb 12 2002
+dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
+dnl
+dnl Permission to use, copy, modify, distribute, and sell this file for any
+dnl purpose is hereby granted without fee, provided that the above copyright
+dnl and this permission notice appear in all copies. No representations are
+dnl made about the suitability of this software for any purpose. It is
+dnl provided "as is" without express or implied warranty.
+dnl
+AC_DEFUN([AC_C99_FUNC_LRINTF],
+[AC_CACHE_CHECK(for lrintf,
+ ac_cv_c99_lrintf,
+[
+lrintf_save_CFLAGS=$CFLAGS
+CFLAGS="-lm"
+AC_TRY_LINK([
+#define _ISOC9X_SOURCE 1
+#define _ISOC99_SOURCE 1
+#define __USE_ISOC99 1
+#define __USE_ISOC9X 1
+
+#include <math.h>
+], if (!lrintf(3.14159)) lrintf(2.7183);, ac_cv_c99_lrintf=yes, ac_cv_c99_lrintf=no)
+
+CFLAGS=$lrintf_save_CFLAGS
+
+])
+
+if test "$ac_cv_c99_lrintf" = yes; then
+ AC_DEFINE(HAVE_LRINTF, 1,
+ [Define if you have C99's lrintf function.])
+fi
+])# AC_C99_FUNC_LRINTF
+
--- a/acinclude.m4
+++ /dev/null
@@ -1,434 +1,0 @@
-dnl @synopsis AC_C_FIND_ENDIAN
-dnl
-dnl Determine endian-ness of target processor.
-dnl @version 1.1 Mar 03 2002
-dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
-dnl
-dnl Majority written from scratch to replace the standard autoconf macro
-dnl AC_C_BIGENDIAN. Only part remaining from the original it the invocation
-dnl of the AC_TRY_RUN macro.
-dnl
-dnl Permission to use, copy, modify, distribute, and sell this file for any
-dnl purpose is hereby granted without fee, provided that the above copyright
-dnl and this permission notice appear in all copies. No representations are
-dnl made about the suitability of this software for any purpose. It is
-dnl provided "as is" without express or implied warranty.
-
-dnl Find endian-ness in the following way:
-dnl 1) Look in <endian.h>.
-dnl 2) If 1) fails, look in <sys/types.h> and <sys/param.h>.
-dnl 3) If 1) and 2) fails and not cross compiling run a test program.
-dnl 4) If 1) and 2) fails and cross compiling then guess based on target.
-
-AC_DEFUN([AC_C_FIND_ENDIAN],
-[AC_CACHE_CHECK(processor byte ordering,
- ac_cv_c_byte_order,
-
-# Initialize to unknown
-ac_cv_c_byte_order=unknown
-
-if test x$ac_cv_header_endian_h = xyes ; then
-
- # First try <endian.h> which should set BYTE_ORDER.
-
- [AC_TRY_LINK([
- #include <endian.h>
- #if BYTE_ORDER != LITTLE_ENDIAN
- not big endian
- #endif
- ], return 0 ;,
- ac_cv_c_byte_order=little
- )]
-
- [AC_TRY_LINK([
- #include <endian.h>
- #if BYTE_ORDER != BIG_ENDIAN
- not big endian
- #endif
- ], return 0 ;,
- ac_cv_c_byte_order=big
- )]
-
- fi
-
-if test $ac_cv_c_byte_order = unknown ; then
-
- [AC_TRY_LINK([
- #include <sys/types.h>
- #include <sys/param.h>
- #if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
- bogus endian macros
- #endif
- ], return 0 ;,
-
- [AC_TRY_LINK([
- #include <sys/types.h>
- #include <sys/param.h>
- #if BYTE_ORDER != LITTLE_ENDIAN
- not big endian
- #endif
- ], return 0 ;,
- ac_cv_c_byte_order=little
- )]
-
- [AC_TRY_LINK([
- #include <sys/types.h>
- #include <sys/param.h>
- #if BYTE_ORDER != LITTLE_ENDIAN
- not big endian
- #endif
- ], return 0 ;,
- ac_cv_c_byte_order=little
- )]
-
- )]
-
- fi
-
-if test $ac_cv_c_byte_order = unknown ; then
- if test $cross_compiling = yes ; then
- # This is the last resort. Try to guess the target processor endian-ness
- # by looking at the target CPU type.
- [
- case "$target_cpu" in
- alpha* | i?86* | mipsel* | ia64*)
- ac_cv_c_big_endian=0
- ac_cv_c_little_endian=1
- ;;
-
- m68* | mips* | powerpc* | hppa* | sparc*)
- ac_cv_c_big_endian=1
- ac_cv_c_little_endian=0
- ;;
-
- esac
- ]
- else
- AC_TRY_RUN(
- [[
- int main (void)
- { /* Are we little or big endian? From Harbison&Steele. */- union
- { long l ;- char c [sizeof (long)] ;
- } u ;
- u.l = 1 ;
- return (u.c [sizeof (long) - 1] == 1);
- }
- ]], , ac_cv_c_byte_order=big,
- ac_cv_c_byte_order=unknown
- )
-
- AC_TRY_RUN(
- [[int main (void)
- { /* Are we little or big endian? From Harbison&Steele. */- union
- { long l ;- char c [sizeof (long)] ;
- } u ;
- u.l = 1 ;
- return (u.c [0] == 1);
- }]], , ac_cv_c_byte_order=little,
- ac_cv_c_byte_order=unknown
- )
- fi
- fi
-
-)
-]
-
-if test $ac_cv_c_byte_order = big ; then
- ac_cv_c_big_endian=1
- ac_cv_c_little_endian=0
-elif test $ac_cv_c_byte_order = little ; then
- ac_cv_c_big_endian=0
- ac_cv_c_little_endian=1
-else
- ac_cv_c_big_endian=0
- ac_cv_c_little_endian=0
-
- AC_MSG_WARN([[*****************************************************************]])
- AC_MSG_WARN([[*** Not able to determine endian-ness of target processor. ]])
- AC_MSG_WARN([[*** The constants CPU_IS_BIG_ENDIAN and CPU_IS_LITTLE_ENDIAN in ]])
- AC_MSG_WARN([[*** src/config.h may need to be hand editied. ]])
- AC_MSG_WARN([[*****************************************************************]])
- fi
-
-)# AC_C_FIND_ENDIAN
-
-
-
-
-
-dnl @synopsis AC_C99_FUNC_LRINT
-dnl
-dnl Check whether C99's lrint function is available.
-dnl @version 1.3 Feb 12 2002
-dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
-dnl
-dnl Permission to use, copy, modify, distribute, and sell this file for any
-dnl purpose is hereby granted without fee, provided that the above copyright
-dnl and this permission notice appear in all copies. No representations are
-dnl made about the suitability of this software for any purpose. It is
-dnl provided "as is" without express or implied warranty.
-dnl
-AC_DEFUN([AC_C99_FUNC_LRINT],
-[AC_CACHE_CHECK(for lrint,
- ac_cv_c99_lrint,
-[
-lrint_save_CFLAGS=$CFLAGS
-CFLAGS="-O2 -lm"
-AC_TRY_LINK([
-#define _ISOC9X_SOURCE 1
-#define _ISOC99_SOURCE 1
-#define __USE_ISOC99 1
-#define __USE_ISOC9X 1
-
-#include <math.h>
-], if (!lrint(3.14159)) lrint(2.7183);, ac_cv_c99_lrint=yes, ac_cv_c99_lrint=no)
-
-CFLAGS=$lrint_save_CFLAGS
-
-])
-
-if test "$ac_cv_c99_lrint" = yes; then
- AC_DEFINE(HAVE_LRINT, 1,
- [Define if you have C99's lrint function.])
-fi
-])# AC_C99_FUNC_LRINT
-
-
-
-
-
-dnl @synopsis AC_C99_FUNC_LRINTF
-dnl
-dnl Check whether C99's lrintf function is available.
-dnl @version 1.3 Feb 12 2002
-dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
-dnl
-dnl Permission to use, copy, modify, distribute, and sell this file for any
-dnl purpose is hereby granted without fee, provided that the above copyright
-dnl and this permission notice appear in all copies. No representations are
-dnl made about the suitability of this software for any purpose. It is
-dnl provided "as is" without express or implied warranty.
-dnl
-
-AC_DEFUN([AC_C99_FUNC_LRINTF],
-[AC_CACHE_CHECK(for lrintf,
- ac_cv_c99_lrintf,
-[
-lrintf_save_CFLAGS=$CFLAGS
-CFLAGS="-O2 -lm"
-AC_TRY_LINK([
-#define _ISOC9X_SOURCE 1
-#define _ISOC99_SOURCE 1
-#define __USE_ISOC99 1
-#define __USE_ISOC9X 1
-
-#include <math.h>
-], if (!lrintf(3.14159)) lrintf(2.7183);, ac_cv_c99_lrintf=yes, ac_cv_c99_lrintf=no)
-
-CFLAGS=$lrintf_save_CFLAGS
-
-])
-
-if test "$ac_cv_c99_lrintf" = yes; then
- AC_DEFINE(HAVE_LRINTF, 1,
- [Define if you have C99's lrintf function.])
-fi
-])# AC_C99_FUNC_LRINTF
-
-
-
-
-
-dnl @synopsis AC_C99_FUNC_LLRINT
-dnl
-dnl Check whether C99's llrint function is available.
-dnl @version 1.1 Sep 30 2002
-dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
-dnl
-dnl Permission to use, copy, modify, distribute, and sell this file for any
-dnl purpose is hereby granted without fee, provided that the above copyright
-dnl and this permission notice appear in all copies. No representations are
-dnl made about the suitability of this software for any purpose. It is
-dnl provided "as is" without express or implied warranty.
-dnl
-AC_DEFUN([AC_C99_FUNC_LLRINT],
-[AC_CACHE_CHECK(for llrint,
- ac_cv_c99_llrint,
-[
-llrint_save_CFLAGS=$CFLAGS
-CFLAGS="-O2 -lm"
-AC_TRY_LINK([
-#define _ISOC9X_SOURCE 1
-#define _ISOC99_SOURCE 1
-#define __USE_ISOC99 1
-#define __USE_ISOC9X 1
-
-#include <math.h>
-#include <stdint.h>
-], int64_t x ; x = llrint(3.14159) ;, ac_cv_c99_llrint=yes, ac_cv_c99_llrint=no)
-
-CFLAGS=$llrint_save_CFLAGS
-
-])
-
-if test "$ac_cv_c99_llrint" = yes; then
- AC_DEFINE(HAVE_LLRINT, 1,
- [Define if you have C99's llrint function.])
-fi
-])# AC_C99_FUNC_LLRINT
-
-
-
-
-
-dnl @synopsis AC_C_CLIP_MODE
-dnl
-dnl Determine the clipping mode when converting float to int.
-dnl @version 1.0 May 17 2003
-dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
-dnl
-dnl Permission to use, copy, modify, distribute, and sell this file for any
-dnl purpose is hereby granted without fee, provided that the above copyright
-dnl and this permission notice appear in all copies. No representations are
-dnl made about the suitability of this software for any purpose. It is
-dnl provided "as is" without express or implied warranty.
-
-dnl Find the clipping mode in the following way:
-dnl 1) If we are not cross compiling test it.
-dnl 2) IF we are cross compiling, assume that clipping isn't done correctly.
-
-AC_DEFUN([AC_C_CLIP_MODE],
-[AC_CACHE_CHECK(processor clipping capabilities,
- ac_cv_c_clip_type,
-
-# Initialize to unknown
-ac_cv_c_clip_positive=unknown
-ac_cv_c_clip_negative=unknown
-
-if test $ac_cv_c_clip_positive = unknown ; then
- AC_TRY_RUN(
- [[
- #define _ISOC9X_SOURCE 1
- #define _ISOC99_SOURCE 1
- #define __USE_ISOC99 1
- #define __USE_ISOC9X 1
- #include <math.h>
- int main (void)
- { double fval ;- int k, ival ;
-
- fval = 1.0 * 0x7FFFFFFF ;
- for (k = 0 ; k < 100 ; k++)
- { ival = (lrint (fval)) >> 24 ;- if (ival != 127)
- return 1 ;
-
- fval *= 1.2499999 ;
- } ;
-
- return 0 ;
- }
- ]],
- ac_cv_c_clip_positive=yes,
- ac_cv_c_clip_positive=no,
- ac_cv_c_clip_positive=unknown
- )
-
- AC_TRY_RUN(
- [[
- #define _ISOC9X_SOURCE 1
- #define _ISOC99_SOURCE 1
- #define __USE_ISOC99 1
- #define __USE_ISOC9X 1
- #include <math.h>
- int main (void)
- { double fval ;- int k, ival ;
-
- fval = -8.0 * 0x10000000 ;
- for (k = 0 ; k < 100 ; k++)
- { ival = (lrint (fval)) >> 24 ;- if (ival != -128)
- return 1 ;
-
- fval *= 1.2499999 ;
- } ;
-
- return 0 ;
- }
- ]],
- ac_cv_c_clip_negative=yes,
- ac_cv_c_clip_negative=no,
- ac_cv_c_clip_negative=unknown
- )
-
- fi
-
-if test $ac_cv_c_clip_positive = yes ; then
- ac_cv_c_clip_positive=1
-else
- ac_cv_c_clip_positive=0
- fi
-
-if test $ac_cv_c_clip_negative = yes ; then
- ac_cv_c_clip_negative=1
-else
- ac_cv_c_clip_negative=0
- fi
-
-[[
-case "$ac_cv_c_clip_positive$ac_cv_c_clip_negative" in
- "00")
- ac_cv_c_clip_type="none"
- ;;
- "10")
- ac_cv_c_clip_type="positive"
- ;;
- "01")
- ac_cv_c_clip_type="negative"
- ;;
- "11")
- ac_cv_c_clip_type="both"
- ;;
- esac
- ]]
-
-)
-]
-
-)# AC_C_CLIP_MODE
-
-
-
-
-
-dnl @synopsis AC_CHECK_SIGNAL(SIGNAME)
-dnl
-dnl
-dnl @category C
-dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
-dnl @version 1.0 Jul 07 2007
-
-AC_DEFUN([AC_CHECK_SIGNAL],
-[AC_CACHE_CHECK(for $1,
- ac_cv_signal_$1,
-[
-AC_TRY_LINK([
-#include <signal.h>
-
-], signal($1, SIG_DFL) ;, ac_cv_signal_$1=yes, ac_cv_signal_$1=no)
-
-])
-
-if test "$ac_cv_signal_$1" = yes; then
- AC_DEFINE(HAVE_$1, 1,
- [Define if you have signal $1.])
-fi
-])# AC_CHECK_SIGNAL
-
-
-## AC_CHECK_SIGNALS