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Diffstat (limited to 'libs/libsndfile/acinclude.m4')
| -rw-r--r-- | libs/libsndfile/acinclude.m4 | 579 |
1 files changed, 579 insertions, 0 deletions
diff --git a/libs/libsndfile/acinclude.m4 b/libs/libsndfile/acinclude.m4 new file mode 100644 index 0000000000..37f8c0c2a1 --- /dev/null +++ b/libs/libsndfile/acinclude.m4 @@ -0,0 +1,579 @@ +dnl By default, many hosts won't let programs access large files; +dnl one must use special compiler options to get large-file access to work. +dnl For more details about this brain damage please see: +dnl http://www.sas.com/standards/large.file/x_open.20Mar96.html + +dnl Written by Paul Eggert <eggert@twinsun.com>. + +dnl Internal subroutine of AC_SYS_EXTRA_LARGEFILE. +dnl AC_SYS_EXTRA_LARGEFILE_FLAGS(FLAGSNAME) +AC_DEFUN([AC_SYS_EXTRA_LARGEFILE_FLAGS], + [AC_CACHE_CHECK([for $1 value to request large file support], + ac_cv_sys_largefile_$1, + [ac_cv_sys_largefile_$1=`($GETCONF LFS_$1) 2>/dev/null` || { + ac_cv_sys_largefile_$1=no + ifelse($1, CFLAGS, + [case "$host_os" in + # IRIX 6.2 and later require cc -n32. +changequote(, )dnl + irix6.[2-9]* | irix6.1[0-9]* | irix[7-9].* | irix[1-9][0-9]*) +changequote([, ])dnl + if test "$GCC" != yes; then + ac_cv_sys_largefile_CFLAGS=-n32 + fi + ac_save_CC="$CC" + CC="$CC $ac_cv_sys_largefile_CFLAGS" + AC_TRY_LINK(, , , ac_cv_sys_largefile_CFLAGS=no) + CC="$ac_save_CC" + esac]) + }])]) + +dnl Internal subroutine of AC_SYS_EXTRA_LARGEFILE. +dnl AC_SYS_EXTRA_LARGEFILE_SPACE_APPEND(VAR, VAL) +AC_DEFUN([AC_SYS_EXTRA_LARGEFILE_SPACE_APPEND], + [case $2 in + no) ;; + ?*) + case "[$]$1" in + '') $1=$2 ;; + *) $1=[$]$1' '$2 ;; + esac ;; + esac]) + +dnl Internal subroutine of AC_SYS_EXTRA_LARGEFILE. +dnl AC_SYS_EXTRA_LARGEFILE_MACRO_VALUE(C-MACRO, CACHE-VAR, COMMENT, CODE-TO-SET-DEFAULT) +AC_DEFUN([AC_SYS_EXTRA_LARGEFILE_MACRO_VALUE], + [AC_CACHE_CHECK([for $1], $2, + [$2=no +changequote(, )dnl + $4 + for ac_flag in $ac_cv_sys_largefile_CFLAGS no; do + case "$ac_flag" in + -D$1) + $2=1 ;; + -D$1=*) + $2=`expr " $ac_flag" : '[^=]*=\(.*\)'` ;; + esac + done +changequote([, ])dnl + ]) + if test "[$]$2" != no; then + AC_DEFINE_UNQUOTED([$1], [$]$2, [$3]) + fi]) + +AC_DEFUN([AC_SYS_EXTRA_LARGEFILE], + [AC_REQUIRE([AC_CANONICAL_HOST]) + AC_ARG_ENABLE(largefile, + [ --disable-largefile omit support for large files]) + if test "$enable_largefile" != no; then + AC_CHECK_TOOL(GETCONF, getconf) + AC_SYS_EXTRA_LARGEFILE_FLAGS(CFLAGS) + AC_SYS_EXTRA_LARGEFILE_FLAGS(LDFLAGS) + AC_SYS_EXTRA_LARGEFILE_FLAGS(LIBS) + + for ac_flag in $ac_cv_sys_largefile_CFLAGS no; do + case "$ac_flag" in + no) ;; + -D_FILE_OFFSET_BITS=*) ;; + -D_LARGEFILE_SOURCE | -D_LARGEFILE_SOURCE=*) ;; + -D_LARGE_FILES | -D_LARGE_FILES=*) ;; + -D?* | -I?*) + AC_SYS_EXTRA_LARGEFILE_SPACE_APPEND(CPPFLAGS, "$ac_flag") ;; + *) + AC_SYS_EXTRA_LARGEFILE_SPACE_APPEND(CFLAGS, "$ac_flag") ;; + esac + done + AC_SYS_EXTRA_LARGEFILE_SPACE_APPEND(LDFLAGS, "$ac_cv_sys_largefile_LDFLAGS") + AC_SYS_EXTRA_LARGEFILE_SPACE_APPEND(LIBS, "$ac_cv_sys_largefile_LIBS") + AC_SYS_EXTRA_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, + ac_cv_sys_file_offset_bits, + [Number of bits in a file offset, on hosts where this is settable.]) + [case "$host_os" in + # HP-UX 10.20 and later + hpux10.[2-9][0-9]* | hpux1[1-9]* | hpux[2-9][0-9]*) + ac_cv_sys_file_offset_bits=64 ;; + esac] + AC_SYS_EXTRA_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE, + ac_cv_sys_largefile_source, + [Define to make fseeko etc. visible, on some hosts.], + [case "$host_os" in + # HP-UX 10.20 and later + hpux10.[2-9][0-9]* | hpux1[1-9]* | hpux[2-9][0-9]*) + ac_cv_sys_largefile_source=1 ;; + esac]) + AC_SYS_EXTRA_LARGEFILE_MACRO_VALUE(_LARGE_FILES, + ac_cv_sys_large_files, + [Define for large files, on AIX-style hosts.], + [case "$host_os" in + # AIX 4.2 and later + aix4.[2-9]* | aix4.1[0-9]* | aix[5-9].* | aix[1-9][0-9]*) + ac_cv_sys_large_files=1 ;; + esac]) + fi + ]) + + + + + + +dnl @synopsis AC_C_FIND_ENDIAN +dnl +dnl Determine endian-ness of target processor. +dnl @version 1.1 Mar 03 2002 +dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com> +dnl +dnl Majority written from scratch to replace the standard autoconf macro +dnl AC_C_BIGENDIAN. Only part remaining from the original it the invocation +dnl of the AC_TRY_RUN macro. +dnl +dnl Permission to use, copy, modify, distribute, and sell this file for any +dnl purpose is hereby granted without fee, provided that the above copyright +dnl and this permission notice appear in all copies. No representations are +dnl made about the suitability of this software for any purpose. It is +dnl provided "as is" without express or implied warranty. + +dnl Find endian-ness in the following way: +dnl 1) Look in <endian.h>. +dnl 2) If 1) fails, look in <sys/types.h> and <sys/param.h>. +dnl 3) If 1) and 2) fails and not cross compiling run a test program. +dnl 4) If 1) and 2) fails and cross compiling then guess based on target. + +AC_DEFUN([AC_C_FIND_ENDIAN], +[AC_CACHE_CHECK(processor byte ordering, + ac_cv_c_byte_order, + +# Initialize to unknown +ac_cv_c_byte_order=unknown + +if test x$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_FLEXIBLE_ARRAY +dnl +dnl Dose the compiler support the 1999 ISO C Standard "stuct hack". +dnl @version 1.1 Mar 15 2004 +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. + +AC_DEFUN([AC_C99_FLEXIBLE_ARRAY], +[AC_CACHE_CHECK(C99 struct flexible array support, + ac_cv_c99_flexible_array, + +# Initialize to unknown +ac_cv_c99_flexible_array=no + +AC_TRY_LINK([[ + #include <stdlib.h> + typedef struct { + int k; + char buffer [] ; + } MY_STRUCT ; + ]], + [ MY_STRUCT *p = calloc (1, sizeof (MY_STRUCT) + 42); ], + ac_cv_c99_flexible_array=yes, + ac_cv_c99_flexible_array=no + ))] +) # AC_C99_FLEXIBLE_ARRAY + + + + + +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_ADD_CFLAGS +dnl +dnl Add the given option to CFLAGS, if it doesn't break the compiler + +AC_DEFUN([AC_ADD_CFLAGS], +[AC_MSG_CHECKING([if $CC accepts $1]) + ac_add_cflags__old_cflags="$CFLAGS" + CFLAGS="$CFLAGS $1" + AC_TRY_LINK([#include <stdio.h>], + [printf("Hello, World!\n"); return 0;], + AC_MSG_RESULT([yes]), + AC_MSG_RESULT([no]) + CFLAGS="$ac_add_cflags__old_cflags") +]) + + + + +ifelse(dnl + + Do not edit or modify anything in this comment block. + The arch-tag line is a file identity tag for the GNU Arch + revision control system. + + arch-tag: bc38294d-bb5c-42ad-90b9-779def5eaab7 + +)dnl |