Math Processor Unit Library

libmpu – library of arithmetic functions for integer, real, and complex numbers of increased digit capacity

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868b2b66 (kx 2024-12-20 16:11:07 +0300   1) # lib-ld.m4 serial 9
868b2b66 (kx 2024-12-20 16:11:07 +0300   2) dnl Copyright (C) 1996-2003, 2009-2020 Free Software Foundation, Inc.
868b2b66 (kx 2024-12-20 16:11:07 +0300   3) dnl This file is free software; the Free Software Foundation
868b2b66 (kx 2024-12-20 16:11:07 +0300   4) dnl gives unlimited permission to copy and/or distribute it,
868b2b66 (kx 2024-12-20 16:11:07 +0300   5) dnl with or without modifications, as long as this notice is preserved.
868b2b66 (kx 2024-12-20 16:11:07 +0300   6) 
868b2b66 (kx 2024-12-20 16:11:07 +0300   7) dnl Subroutines of libtool.m4,
868b2b66 (kx 2024-12-20 16:11:07 +0300   8) dnl with replacements s/_*LT_PATH/AC_LIB_PROG/ and s/lt_/acl_/ to avoid
868b2b66 (kx 2024-12-20 16:11:07 +0300   9) dnl collision with libtool.m4.
868b2b66 (kx 2024-12-20 16:11:07 +0300  10) 
868b2b66 (kx 2024-12-20 16:11:07 +0300  11) dnl From libtool-2.4. Sets the variable with_gnu_ld to yes or no.
868b2b66 (kx 2024-12-20 16:11:07 +0300  12) AC_DEFUN([AC_LIB_PROG_LD_GNU],
868b2b66 (kx 2024-12-20 16:11:07 +0300  13) [AC_CACHE_CHECK([if the linker ($LD) is GNU ld], [acl_cv_prog_gnu_ld],
868b2b66 (kx 2024-12-20 16:11:07 +0300  14) [# I'd rather use --version here, but apparently some GNU lds only accept -v.
868b2b66 (kx 2024-12-20 16:11:07 +0300  15) case `$LD -v 2>&1 </dev/null` in
868b2b66 (kx 2024-12-20 16:11:07 +0300  16) *GNU* | *'with BFD'*)
868b2b66 (kx 2024-12-20 16:11:07 +0300  17)   acl_cv_prog_gnu_ld=yes
868b2b66 (kx 2024-12-20 16:11:07 +0300  18)   ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300  19) *)
868b2b66 (kx 2024-12-20 16:11:07 +0300  20)   acl_cv_prog_gnu_ld=no
868b2b66 (kx 2024-12-20 16:11:07 +0300  21)   ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300  22) esac])
868b2b66 (kx 2024-12-20 16:11:07 +0300  23) with_gnu_ld=$acl_cv_prog_gnu_ld
868b2b66 (kx 2024-12-20 16:11:07 +0300  24) ])
868b2b66 (kx 2024-12-20 16:11:07 +0300  25) 
868b2b66 (kx 2024-12-20 16:11:07 +0300  26) dnl From libtool-2.4. Sets the variable LD.
868b2b66 (kx 2024-12-20 16:11:07 +0300  27) AC_DEFUN([AC_LIB_PROG_LD],
868b2b66 (kx 2024-12-20 16:11:07 +0300  28) [AC_REQUIRE([AC_PROG_CC])dnl
868b2b66 (kx 2024-12-20 16:11:07 +0300  29) AC_REQUIRE([AC_CANONICAL_HOST])dnl
868b2b66 (kx 2024-12-20 16:11:07 +0300  30) 
868b2b66 (kx 2024-12-20 16:11:07 +0300  31) AC_ARG_WITH([gnu-ld],
868b2b66 (kx 2024-12-20 16:11:07 +0300  32)     [AS_HELP_STRING([--with-gnu-ld],
868b2b66 (kx 2024-12-20 16:11:07 +0300  33)         [assume the C compiler uses GNU ld [default=no]])],
868b2b66 (kx 2024-12-20 16:11:07 +0300  34)     [test "$withval" = no || with_gnu_ld=yes],
868b2b66 (kx 2024-12-20 16:11:07 +0300  35)     [with_gnu_ld=no])dnl
868b2b66 (kx 2024-12-20 16:11:07 +0300  36) 
868b2b66 (kx 2024-12-20 16:11:07 +0300  37) # Prepare PATH_SEPARATOR.
868b2b66 (kx 2024-12-20 16:11:07 +0300  38) # The user is always right.
868b2b66 (kx 2024-12-20 16:11:07 +0300  39) if test "${PATH_SEPARATOR+set}" != set; then
868b2b66 (kx 2024-12-20 16:11:07 +0300  40)   # Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which
868b2b66 (kx 2024-12-20 16:11:07 +0300  41)   # contains only /bin. Note that ksh looks also at the FPATH variable,
868b2b66 (kx 2024-12-20 16:11:07 +0300  42)   # so we have to set that as well for the test.
868b2b66 (kx 2024-12-20 16:11:07 +0300  43)   PATH_SEPARATOR=:
868b2b66 (kx 2024-12-20 16:11:07 +0300  44)   (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
868b2b66 (kx 2024-12-20 16:11:07 +0300  45)     && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
868b2b66 (kx 2024-12-20 16:11:07 +0300  46)            || PATH_SEPARATOR=';'
868b2b66 (kx 2024-12-20 16:11:07 +0300  47)        }
868b2b66 (kx 2024-12-20 16:11:07 +0300  48) fi
868b2b66 (kx 2024-12-20 16:11:07 +0300  49) 
868b2b66 (kx 2024-12-20 16:11:07 +0300  50) if test -n "$LD"; then
868b2b66 (kx 2024-12-20 16:11:07 +0300  51)   AC_MSG_CHECKING([for ld])
868b2b66 (kx 2024-12-20 16:11:07 +0300  52) elif test "$GCC" = yes; then
868b2b66 (kx 2024-12-20 16:11:07 +0300  53)   AC_MSG_CHECKING([for ld used by $CC])
868b2b66 (kx 2024-12-20 16:11:07 +0300  54) elif test "$with_gnu_ld" = yes; then
868b2b66 (kx 2024-12-20 16:11:07 +0300  55)   AC_MSG_CHECKING([for GNU ld])
868b2b66 (kx 2024-12-20 16:11:07 +0300  56) else
868b2b66 (kx 2024-12-20 16:11:07 +0300  57)   AC_MSG_CHECKING([for non-GNU ld])
868b2b66 (kx 2024-12-20 16:11:07 +0300  58) fi
868b2b66 (kx 2024-12-20 16:11:07 +0300  59) if test -n "$LD"; then
868b2b66 (kx 2024-12-20 16:11:07 +0300  60)   # Let the user override the test with a path.
868b2b66 (kx 2024-12-20 16:11:07 +0300  61)   :
868b2b66 (kx 2024-12-20 16:11:07 +0300  62) else
868b2b66 (kx 2024-12-20 16:11:07 +0300  63)   AC_CACHE_VAL([acl_cv_path_LD],
868b2b66 (kx 2024-12-20 16:11:07 +0300  64)   [
868b2b66 (kx 2024-12-20 16:11:07 +0300  65)     acl_cv_path_LD= # Final result of this test
868b2b66 (kx 2024-12-20 16:11:07 +0300  66)     ac_prog=ld # Program to search in $PATH
868b2b66 (kx 2024-12-20 16:11:07 +0300  67)     if test "$GCC" = yes; then
868b2b66 (kx 2024-12-20 16:11:07 +0300  68)       # Check if gcc -print-prog-name=ld gives a path.
868b2b66 (kx 2024-12-20 16:11:07 +0300  69)       case $host in
868b2b66 (kx 2024-12-20 16:11:07 +0300  70)         *-*-mingw*)
868b2b66 (kx 2024-12-20 16:11:07 +0300  71)           # gcc leaves a trailing carriage return which upsets mingw
868b2b66 (kx 2024-12-20 16:11:07 +0300  72)           acl_output=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300  73)         *)
868b2b66 (kx 2024-12-20 16:11:07 +0300  74)           acl_output=`($CC -print-prog-name=ld) 2>&5` ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300  75)       esac
868b2b66 (kx 2024-12-20 16:11:07 +0300  76)       case $acl_output in
868b2b66 (kx 2024-12-20 16:11:07 +0300  77)         # Accept absolute paths.
868b2b66 (kx 2024-12-20 16:11:07 +0300  78)         [[\\/]]* | ?:[[\\/]]*)
868b2b66 (kx 2024-12-20 16:11:07 +0300  79)           re_direlt='/[[^/]][[^/]]*/\.\./'
868b2b66 (kx 2024-12-20 16:11:07 +0300  80)           # Canonicalize the pathname of ld
868b2b66 (kx 2024-12-20 16:11:07 +0300  81)           acl_output=`echo "$acl_output" | sed 's%\\\\%/%g'`
868b2b66 (kx 2024-12-20 16:11:07 +0300  82)           while echo "$acl_output" | grep "$re_direlt" > /dev/null 2>&1; do
868b2b66 (kx 2024-12-20 16:11:07 +0300  83)             acl_output=`echo $acl_output | sed "s%$re_direlt%/%"`
868b2b66 (kx 2024-12-20 16:11:07 +0300  84)           done
868b2b66 (kx 2024-12-20 16:11:07 +0300  85)           # Got the pathname. No search in PATH is needed.
868b2b66 (kx 2024-12-20 16:11:07 +0300  86)           acl_cv_path_LD="$acl_output"
868b2b66 (kx 2024-12-20 16:11:07 +0300  87)           ac_prog=
868b2b66 (kx 2024-12-20 16:11:07 +0300  88)           ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300  89)         "")
868b2b66 (kx 2024-12-20 16:11:07 +0300  90)           # If it fails, then pretend we aren't using GCC.
868b2b66 (kx 2024-12-20 16:11:07 +0300  91)           ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300  92)         *)
868b2b66 (kx 2024-12-20 16:11:07 +0300  93)           # If it is relative, then search for the first ld in PATH.
868b2b66 (kx 2024-12-20 16:11:07 +0300  94)           with_gnu_ld=unknown
868b2b66 (kx 2024-12-20 16:11:07 +0300  95)           ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300  96)       esac
868b2b66 (kx 2024-12-20 16:11:07 +0300  97)     fi
868b2b66 (kx 2024-12-20 16:11:07 +0300  98)     if test -n "$ac_prog"; then
868b2b66 (kx 2024-12-20 16:11:07 +0300  99)       # Search for $ac_prog in $PATH.
868b2b66 (kx 2024-12-20 16:11:07 +0300 100)       acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
868b2b66 (kx 2024-12-20 16:11:07 +0300 101)       for ac_dir in $PATH; do
868b2b66 (kx 2024-12-20 16:11:07 +0300 102)         IFS="$acl_save_ifs"
868b2b66 (kx 2024-12-20 16:11:07 +0300 103)         test -z "$ac_dir" && ac_dir=.
868b2b66 (kx 2024-12-20 16:11:07 +0300 104)         if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
868b2b66 (kx 2024-12-20 16:11:07 +0300 105)           acl_cv_path_LD="$ac_dir/$ac_prog"
868b2b66 (kx 2024-12-20 16:11:07 +0300 106)           # Check to see if the program is GNU ld.  I'd rather use --version,
868b2b66 (kx 2024-12-20 16:11:07 +0300 107)           # but apparently some variants of GNU ld only accept -v.
868b2b66 (kx 2024-12-20 16:11:07 +0300 108)           # Break only if it was the GNU/non-GNU ld that we prefer.
868b2b66 (kx 2024-12-20 16:11:07 +0300 109)           case `"$acl_cv_path_LD" -v 2>&1 </dev/null` in
868b2b66 (kx 2024-12-20 16:11:07 +0300 110)             *GNU* | *'with BFD'*)
868b2b66 (kx 2024-12-20 16:11:07 +0300 111)               test "$with_gnu_ld" != no && break
868b2b66 (kx 2024-12-20 16:11:07 +0300 112)               ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300 113)             *)
868b2b66 (kx 2024-12-20 16:11:07 +0300 114)               test "$with_gnu_ld" != yes && break
868b2b66 (kx 2024-12-20 16:11:07 +0300 115)               ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300 116)           esac
868b2b66 (kx 2024-12-20 16:11:07 +0300 117)         fi
868b2b66 (kx 2024-12-20 16:11:07 +0300 118)       done
868b2b66 (kx 2024-12-20 16:11:07 +0300 119)       IFS="$acl_save_ifs"
868b2b66 (kx 2024-12-20 16:11:07 +0300 120)     fi
868b2b66 (kx 2024-12-20 16:11:07 +0300 121)     case $host in
868b2b66 (kx 2024-12-20 16:11:07 +0300 122)       *-*-aix*)
868b2b66 (kx 2024-12-20 16:11:07 +0300 123)         AC_COMPILE_IFELSE(
868b2b66 (kx 2024-12-20 16:11:07 +0300 124)           [AC_LANG_SOURCE(
868b2b66 (kx 2024-12-20 16:11:07 +0300 125)              [[#if defined __powerpc64__ || defined _ARCH_PPC64
868b2b66 (kx 2024-12-20 16:11:07 +0300 126)                 int ok;
868b2b66 (kx 2024-12-20 16:11:07 +0300 127)                #else
868b2b66 (kx 2024-12-20 16:11:07 +0300 128)                 error fail
868b2b66 (kx 2024-12-20 16:11:07 +0300 129)                #endif
868b2b66 (kx 2024-12-20 16:11:07 +0300 130)              ]])],
868b2b66 (kx 2024-12-20 16:11:07 +0300 131)           [# The compiler produces 64-bit code. Add option '-b64' so that the
868b2b66 (kx 2024-12-20 16:11:07 +0300 132)            # linker groks 64-bit object files.
868b2b66 (kx 2024-12-20 16:11:07 +0300 133)            case "$acl_cv_path_LD " in
868b2b66 (kx 2024-12-20 16:11:07 +0300 134)              *" -b64 "*) ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300 135)              *) acl_cv_path_LD="$acl_cv_path_LD -b64" ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300 136)            esac
868b2b66 (kx 2024-12-20 16:11:07 +0300 137)           ], [])
868b2b66 (kx 2024-12-20 16:11:07 +0300 138)         ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300 139)       sparc64-*-netbsd*)
868b2b66 (kx 2024-12-20 16:11:07 +0300 140)         AC_COMPILE_IFELSE(
868b2b66 (kx 2024-12-20 16:11:07 +0300 141)           [AC_LANG_SOURCE(
868b2b66 (kx 2024-12-20 16:11:07 +0300 142)              [[#if defined __sparcv9 || defined __arch64__
868b2b66 (kx 2024-12-20 16:11:07 +0300 143)                 int ok;
868b2b66 (kx 2024-12-20 16:11:07 +0300 144)                #else
868b2b66 (kx 2024-12-20 16:11:07 +0300 145)                 error fail
868b2b66 (kx 2024-12-20 16:11:07 +0300 146)                #endif
868b2b66 (kx 2024-12-20 16:11:07 +0300 147)              ]])],
868b2b66 (kx 2024-12-20 16:11:07 +0300 148)           [],
868b2b66 (kx 2024-12-20 16:11:07 +0300 149)           [# The compiler produces 32-bit code. Add option '-m elf32_sparc'
868b2b66 (kx 2024-12-20 16:11:07 +0300 150)            # so that the linker groks 32-bit object files.
868b2b66 (kx 2024-12-20 16:11:07 +0300 151)            case "$acl_cv_path_LD " in
868b2b66 (kx 2024-12-20 16:11:07 +0300 152)              *" -m elf32_sparc "*) ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300 153)              *) acl_cv_path_LD="$acl_cv_path_LD -m elf32_sparc" ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300 154)            esac
868b2b66 (kx 2024-12-20 16:11:07 +0300 155)           ])
868b2b66 (kx 2024-12-20 16:11:07 +0300 156)         ;;
868b2b66 (kx 2024-12-20 16:11:07 +0300 157)     esac
868b2b66 (kx 2024-12-20 16:11:07 +0300 158)   ])
868b2b66 (kx 2024-12-20 16:11:07 +0300 159)   LD="$acl_cv_path_LD"
868b2b66 (kx 2024-12-20 16:11:07 +0300 160) fi
868b2b66 (kx 2024-12-20 16:11:07 +0300 161) if test -n "$LD"; then
868b2b66 (kx 2024-12-20 16:11:07 +0300 162)   AC_MSG_RESULT([$LD])
868b2b66 (kx 2024-12-20 16:11:07 +0300 163) else
868b2b66 (kx 2024-12-20 16:11:07 +0300 164)   AC_MSG_RESULT([no])
868b2b66 (kx 2024-12-20 16:11:07 +0300 165)   AC_MSG_ERROR([no acceptable ld found in \$PATH])
868b2b66 (kx 2024-12-20 16:11:07 +0300 166) fi
868b2b66 (kx 2024-12-20 16:11:07 +0300 167) AC_LIB_PROG_LD_GNU
868b2b66 (kx 2024-12-20 16:11:07 +0300 168) ])