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ltconfig
executable file
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ltconfig
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#! /bin/sh
# ltconfig - Create a system-specific libtool.
# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001
# Free Software Foundation, Inc.
# Originally by Gordon Matzigkeit <[email protected]>, 1996
#
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# A lot of this script is taken from autoconf-2.10.
# Check that we are running under the correct shell.
SHELL=${CONFIG_SHELL-/bin/sh}
echo=echo
if test "X$1" = X--no-reexec; then
# Discard the --no-reexec flag, and continue.
shift
elif test "X$1" = X--fallback-echo; then
# Avoid inline document here, it may be left over
:
elif test "X`($echo '\t') 2>/dev/null`" = 'X\t'; then
# Yippee, $echo works!
:
else
# Restart under the correct shell.
exec "$SHELL" "$0" --no-reexec ${1+"$@"}
fi
if test "X$1" = X--fallback-echo; then
# used as fallback echo
shift
cat <<EOF
$*
EOF
exit 0
fi
# Find the correct PATH separator. Usually this is `:', but
# DJGPP uses `;' like DOS.
if test "X${PATH_SEPARATOR+set}" != Xset; then
UNAME=${UNAME-`uname 2>/dev/null`}
case X$UNAME in
*-DOS) PATH_SEPARATOR=';' ;;
*) PATH_SEPARATOR=':' ;;
esac
fi
# The HP-UX ksh and POSIX shell print the target directory to stdout
# if CDPATH is set.
if test "X${CDPATH+set}" = Xset; then CDPATH=:; export CDPATH; fi
if test "X${echo_test_string+set}" != Xset; then
# find a string as large as possible, as long as the shell can cope with it
for cmd in 'sed 50q "$0"' 'sed 20q "$0"' 'sed 10q "$0"' 'sed 2q "$0"' 'echo test'; do
# expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...
if (echo_test_string="`eval $cmd`") 2>/dev/null &&
echo_test_string="`eval $cmd`" &&
(test "X$echo_test_string" = "X$echo_test_string") 2>/dev/null; then
break
fi
done
fi
if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&
echo_testing_string=`($echo "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
:
else
# The Solaris, AIX, and Digital Unix default echo programs unquote
# backslashes. This makes it impossible to quote backslashes using
# echo "$something" | sed 's/\\/\\\\/g'
#
# So, first we look for a working echo in the user's PATH.
IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
for dir in $PATH /usr/ucb; do
if (test -f $dir/echo || test -f $dir/echo$ac_exeext) &&
test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&
echo_testing_string=`($dir/echo "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
echo="$dir/echo"
break
fi
done
IFS="$save_ifs"
if test "X$echo" = Xecho; then
# We didn't find a better echo, so look for alternatives.
if test "X`(print -r '\t') 2>/dev/null`" = 'X\t' &&
echo_testing_string=`(print -r "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
# This shell has a builtin print -r that does the trick.
echo='print -r'
elif (test -f /bin/ksh || test -f /bin/ksh$ac_exeext) &&
test "X$CONFIG_SHELL" != X/bin/ksh; then
# If we have ksh, try running ltconfig again with it.
ORIGINAL_CONFIG_SHELL="${CONFIG_SHELL-/bin/sh}"
export ORIGINAL_CONFIG_SHELL
CONFIG_SHELL=/bin/ksh
export CONFIG_SHELL
exec "$CONFIG_SHELL" "$0" --no-reexec ${1+"$@"}
else
# Try using printf.
echo='printf %s\n'
if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&
echo_testing_string=`($echo "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
# Cool, printf works
:
elif echo_testing_string=`("$ORIGINAL_CONFIG_SHELL" "$0" --fallback-echo '\t') 2>/dev/null` &&
test "X$echo_testing_string" = 'X\t' &&
echo_testing_string=`("$ORIGINAL_CONFIG_SHELL" "$0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
CONFIG_SHELL="$ORIGINAL_CONFIG_SHELL"
export CONFIG_SHELL
SHELL="$CONFIG_SHELL"
export SHELL
echo="$CONFIG_SHELL $0 --fallback-echo"
elif echo_testing_string=`("$CONFIG_SHELL" "$0" --fallback-echo '\t') 2>/dev/null` &&
test "X$echo_testing_string" = 'X\t' &&
echo_testing_string=`("$CONFIG_SHELL" "$0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
echo="$CONFIG_SHELL $0 --fallback-echo"
else
# maybe with a smaller string...
prev=:
for cmd in 'echo test' 'sed 2q "$0"' 'sed 10q "$0"' 'sed 20q "$0"' 'sed 50q "$0"'; do
if (test "X$echo_test_string" = "X`eval $cmd`") 2>/dev/null; then
break
fi
prev="$cmd"
done
if test "$prev" != 'sed 50q "$0"'; then
echo_test_string=`eval $prev`
export echo_test_string
exec "${ORIGINAL_CONFIG_SHELL-${CONFIG_SHELL-/bin/sh}}" "$0" ${1+"$@"}
else
# Oops. We lost completely, so just stick with echo.
echo=echo
fi
fi
fi
fi
fi
# Sed substitution that helps us do robust quoting. It backslashifies
# metacharacters that are still active within double-quoted strings.
Xsed='sed -e s/^X//'
sed_quote_subst='s/\([\\"\\`$\\\\]\)/\\\1/g'
# Same as above, but do not quote variable references.
double_quote_subst='s/\([\\"\\`\\\\]\)/\\\1/g'
# Sed substitution to delay expansion of an escaped shell variable in a
# double_quote_subst'ed string.
delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
# The name of this program.
progname=`$echo "X$0" | $Xsed -e 's%^.*/%%'`
# Constants:
PROGRAM=ltconfig
PACKAGE=libtool
VERSION=1.4a-GCC3.0
TIMESTAMP=" (1.641.2.256 2001/05/28 20:09:07 with GCC-local changes)"
ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
rm="rm -f"
help="Try \`$progname --help' for more information."
# Global variables:
default_ofile=libtool
can_build_shared=yes
enable_shared=yes
# All known linkers require a `.a' archive for static linking (except M$VC,
# which needs '.lib').
enable_static=yes
enable_fast_install=yes
enable_dlopen=unknown
enable_win32_dll=no
pic_mode=default
ltmain=
silent=
srcdir=
ac_config_guess=
ac_config_sub=
host=
build=NONE
nonopt=NONE
ofile="$default_ofile"
verify_host=yes
tagname=
with_gcc=no
with_gnu_ld=no
need_locks=yes
ac_ext=c
libext=a
cache_file=
max_cmd_len=
## Dependencies to place before and after the object being linked:
predep_objects=
postdep_objects=
predeps=
postdeps=
compiler_lib_search_path=
## Link characteristics:
allow_undefined_flag=
no_undefined_flag=
need_lib_prefix=unknown
need_version=unknown
# when you set need_version to no, make sure it does not cause -set_version
# flags to be left without arguments
archive_cmds=
archive_expsym_cmds=
old_archive_from_new_cmds=
old_archive_from_expsyms_cmds=
striplib=
old_striplib=
export_dynamic_flag_spec=
whole_archive_flag_spec=
thread_safe_flag_spec=
hardcode_into_libs=no
hardcode_libdir_flag_spec=
hardcode_libdir_separator=
hardcode_direct=no
hardcode_minus_L=no
hardcode_shlibpath_var=unsupported
runpath_var=
link_all_deplibs=unknown
always_export_symbols=no
export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | sed '\''s/.* //'\'' | sort | uniq > $export_symbols'
# include_expsyms should be a list of space-separated symbols to be *always*
# included in the symbol list
include_expsyms=
# exclude_expsyms can be an egrep regular expression of symbols to exclude
# it will be wrapped by ` (' and `)$', so one must not match beginning or
# end of line. Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
# as well as any symbol that contains `d'.
exclude_expsyms="_GLOBAL_OFFSET_TABLE_"
# Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
# platforms (ab)use it in PIC code, but their linkers get confused if
# the symbol is explicitly referenced. Since portable code cannot
# rely on this symbol name, it's probably fine to never include it in
# preloaded symbol tables.
extract_expsyms_cmds=
## Tools:
old_AR="$AR"
old_AR_FLAGS="$AR_FLAGS"
old_CC="$CC"
old_CFLAGS="$CFLAGS"
old_CPPFLAGS="$CPPFLAGS"
old_LDFLAGS="$LDFLAGS"
old_LIBS="$LIBS"
old_MAGIC_CMD="$MAGIC_CMD"
old_LD="$LD"
old_LN_S="$LN_S"
old_LTCC="$LTCC"
old_NM="$NM"
old_RANLIB="$RANLIB"
old_STRIP="$STRIP"
old_AS="$AS"
old_DLLTOOL="$DLLTOOL"
old_OBJDUMP="$OBJDUMP"
old_OBJEXT="$OBJEXT"
old_EXEEXT="$EXEEXT"
old_reload_flag="$reload_flag"
old_deplibs_check_method="$deplibs_check_method"
old_file_magic_cmd="$file_magic_cmd"
# Parse the command line options.
args=
prev=
for option
do
case $option in
-*=*) optarg=`echo "$option" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
*) optarg= ;;
esac
# If the previous option needs an argument, assign it.
if test -n "$prev"; then
eval "$prev=\$option"
prev=
continue
fi
case $option in
--help) cat <<EOM
Usage: $progname [OPTION]... LTMAIN [HOST]
Generate a system-specific libtool script.
--build configure for building on BUILD [BUILD=HOST]
--debug enable verbose shell tracing
--disable-shared do not build shared libraries
--disable-static do not build static libraries
--disable-fast-install do not optimize for fast installation
--enable-dlopen enable dlopen support
--enable-win32-dll enable building dlls on win32 hosts
--help display this help and exit
--no-verify do not verify that HOST is a valid host type
-o, --output=FILE specify the output file [default=$default_ofile]
--quiet same as \`--silent'
--silent do not print informational messages
--srcdir=DIR find \`config.guess' in DIR
--version output version information and exit
--add-tag=TAG append an alternate configuration
--with-gcc assume that the GNU C compiler will be used
--with-gnu-ld assume that the C compiler uses the GNU linker
--prefer-pic try to use only PIC objects
--prefer-non-pic try to use only non-PIC objects
--disable-lock disable file locking
--cache-file=FILE configure cache file
LTMAIN is the \`ltmain.sh' shell script fragment or \`ltmain.c' program
that provides basic libtool functionality.
HOST is the canonical host system name [default=guessed].
EOM
exit 0
;;
--build) prev=build ;;
--build=*) build="$optarg" ;;
--debug)
echo "$progname: enabling shell trace mode"
set -x
;;
--disable-shared) enable_shared=no ;;
--disable-static) enable_static=no ;;
--disable-fast-install) enable_fast_install=no ;;
--enable-dlopen) enable_dlopen=yes ;;
--enable-win32-dll) enable_win32_dll=yes ;;
--quiet | --silent) silent=yes ;;
--srcdir) prev=srcdir ;;
--srcdir=*) srcdir="$optarg" ;;
--no-verify) verify_host=no ;;
--output | -o) prev=ofile ;;
--output=*) ofile="$optarg" ;;
--version) echo "$PROGRAM (GNU $PACKAGE) $VERSION$TIMESTAMP"; exit 0 ;;
--add-tag) prev=tagname ;;
--add-tag=*) tagname="$optarg" ;;
--with-gcc) with_gcc=yes ;;
--with-gnu-ld) with_gnu_ld=yes ;;
--prefer-pic) pic_mode=yes ;;
--prefer-non-pic) pic_mode=no ;;
--disable-lock) need_locks=no ;;
--cache-file=*) cache_file="$optarg" ;;
-*)
echo "$progname: unrecognized option \`$option'" 1>&2
echo "$help" 1>&2
exit 1
;;
*)
if test -z "$ltmain"; then
ltmain="$option"
elif test -z "$host"; then
# This generates an unnecessary warning for sparc-sun-solaris4.1.3_U1
# if test -n "`echo $option| sed 's/[-a-z0-9.]//g'`"; then
# echo "$progname: warning \`$option' is not a valid host type" 1>&2
# fi
host="$option"
else
echo "$progname: too many arguments" 1>&2
echo "$help" 1>&2
exit 1
fi ;;
esac
done
if test -z "$ltmain"; then
echo "$progname: you must specify a LTMAIN file" 1>&2
echo "$help" 1>&2
exit 1
fi
if test ! -f "$ltmain"; then
echo "$progname: \`$ltmain' does not exist" 1>&2
echo "$help" 1>&2
exit 1
fi
if test -n "$tagname"; then
# Check whether tagname contains only valid characters
case `$echo "X$tagname" | $Xsed -e 's/[-_ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890,/]//g'` in
"") ;;
*)
echo "$progname: invalid tag name: $tagname" 1>&2
exit 1
;;
esac
if grep "^### BEGIN LIBTOOL TAG CONFIG: $tagname$" < "$ofile" > /dev/null; then
echo "$progname: tag name $tagname already exists" 1>&2
exit 1
fi
if test ! -f "$ofile"; then
echo "$progname: warning: output file \`$ofile' does not exist" 1>&2
fi
if test -z "$LTCC"; then
eval "`$SHELL $ofile --config | grep '^LTCC='`"
if test -z "$LTCC"; then
echo "$progname: warning: output file \`$ofile' does not look like a libtool script" 1>&2
else
echo "$progname: warning: using \`LTCC=$LTCC', extracted from \`$ofile'" 1>&2
fi
fi
fi
# Quote any args containing shell metacharacters.
ltconfig_args=
for arg
do
case $arg in
*" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*)
ltconfig_args="$ltconfig_args '$arg'" ;;
*) ltconfig_args="$ltconfig_args $arg" ;;
esac
done
# A relevant subset of AC_INIT.
# File descriptor usage:
# 0 standard input
# 1 file creation
# 2 errors and warnings
# 3 some systems may open it to /dev/tty
# 4 used on the Kubota Titan
# 5 compiler messages saved in config.log
# 6 checking for... messages and results
if test "$silent" = yes; then
exec 6>/dev/null
else
exec 6>&1
fi
exec 5>>./config.log
# NLS nuisances.
# Only set LANG and LC_ALL to C if already set.
# These must not be set unconditionally because not all systems understand
# e.g. LANG=C (notably SCO).
if test "X${LC_ALL+set}" = Xset; then LC_ALL=C; export LC_ALL; fi
if test "X${LANG+set}" = Xset; then LANG=C; export LANG; fi
if test -n "$cache_file" && test -r "$cache_file" && test -f "$cache_file"; then
echo "loading cache $cache_file within ltconfig"
. $cache_file
fi
if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
# Stardent Vistra SVR4 grep lacks -e, says [email protected].
if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
ac_n= ac_c='
' ac_t=' '
else
ac_n=-n ac_c= ac_t=
fi
else
ac_n= ac_c='\c' ac_t=
fi
if test -z "$srcdir"; then
# Assume the source directory is the same one as the path to LTMAIN.
srcdir=`$echo "X$ltmain" | $Xsed -e 's%/[^/]*$%%'`
test "$srcdir" = "$ltmain" && srcdir=.
fi
trap "$rm conftest*; exit 1" 1 2 15
if test "$verify_host" = yes; then
# Check for config.guess and config.sub.
ac_aux_dir=
for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
if test -f $ac_dir/config.guess; then
ac_aux_dir=$ac_dir
break
fi
done
if test -z "$ac_aux_dir"; then
echo "$progname: cannot find config.guess in $srcdir $srcdir/.. $srcdir/../.." 1>&2
echo "$help" 1>&2
exit 1
fi
ac_config_guess=$ac_aux_dir/config.guess
ac_config_sub=$ac_aux_dir/config.sub
# Make sure we can run config.sub.
if $SHELL $ac_config_sub sun4 >/dev/null 2>&1; then :
else
echo "$progname: cannot run $ac_config_sub" 1>&2
echo "$help" 1>&2
exit 1
fi
echo $ac_n "checking host system type""... $ac_c" 1>&6
host_alias=$host
case $host_alias in
"")
# Force config.guess to use the C compiler.
# CC_FOR_BUILD overrides the CC variable in config.guess but I had
# problems with it so do it this way for now.
CC="$LTCC"
if host_alias=`$SHELL $ac_config_guess`; then :
else
echo "$progname: cannot guess host type; you must specify one" 1>&2
echo "$help" 1>&2
exit 1
fi
# Restore the C compiler.
CC="$old_CC"
;;
esac
host=`$SHELL $ac_config_sub $host_alias`
echo "$ac_t$host" 1>&6
# Make sure the host verified.
test -z "$host" && exit 1
# Check for the build system type
echo $ac_n "checking build system type... $ac_c" 1>&6
build_alias=$build
case $build_alias in
NONE)
case $nonopt in
NONE) build_alias=$host_alias ;;
*) build_alias=$nonopt ;;
esac ;;
esac
build=`$SHELL $ac_config_sub $build_alias`
build_cpu=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
build_vendor=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
build_os=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
echo "$ac_t""$build" 1>&6
elif test -z "$host"; then
echo "$progname: you must specify a host type if you use \`--no-verify'" 1>&2
echo "$help" 1>&2
exit 1
else
host_alias=$host
build_alias=$host_alias
build=$host
fi
if test x"$host" != x"$build"; then
ac_tool_prefix=${host_alias}-
else
ac_tool_prefix=
fi
host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
# Transform linux* to *-*-linux-gnu*, to support old configure scripts.
case $host_os in
linux-gnu*|linux-uclibc*) ;;
linux*) host=`echo $host | sed 's/^\(.*-.*-linux\)\(.*\)$/\1-gnu\2/'`
esac
case $host_os in
aix3*)
# AIX sometimes has problems with the GCC collect2 program. For some
# reason, if we set the COLLECT_NAMES environment variable, the problems
# vanish in a puff of smoke.
if test "X${COLLECT_NAMES+set}" != Xset; then
COLLECT_NAMES=
export COLLECT_NAMES
fi
;;
esac
# Determine commands to create old-style static archives.
old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs'
old_postinstall_cmds='chmod 644 $oldlib'
old_postuninstall_cmds=
if test -n "$RANLIB"; then
old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
old_postinstall_cmds="\$RANLIB \$oldlib~$old_postinstall_cmds"
fi
# Source the script associated with the $tagname tag configuration.
if test -n "$tagname"; then
. $ltmain
else
# FIXME: We should use a variable here
# Configure for a C compiler
. $srcdir/ltcf-c.sh
fi
# Set sane defaults for various variables
test -z "$AR" && AR=ar
test -z "$AR_FLAGS" && AR_FLAGS=cru
test -z "$AS" && AS=as
test -z "$CC" && CC=cc
test -z "$DLLTOOL" && DLLTOOL=dlltool
test -z "$MAGIC_CMD" && MAGIC_CMD=file
test -z "$LD" && LD=ld
test -z "$LN_S" && LN_S="ln -s"
test -z "$NM" && NM=nm
test -z "$OBJDUMP" && OBJDUMP=objdump
test -z "$RANLIB" && RANLIB=:
test -z "$STRIP" && STRIP=:
test -z "$objext" && objext=o
echo $ac_n "checking for objdir... $ac_c" 1>&6
rm -f .libs 2>/dev/null
mkdir .libs 2>/dev/null
if test -d .libs; then
objdir=.libs
else
# MS-DOS does not allow filenames that begin with a dot.
objdir=_libs
fi
rmdir .libs 2>/dev/null
echo "$ac_t$objdir" 1>&6
# If no C compiler was specified, use CC.
LTCC=${LTCC-"$CC"}
# Allow CC to be a program name with arguments.
set dummy $CC
compiler="$2"
# We assume here that the value for ac_cv_prog_cc_pic will not be cached
# in isolation, and that seeing it set (from the cache) indicates that
# the associated values are set (in the cache) correctly too.
echo $ac_n "checking for $compiler option to produce PIC... $ac_c" 1>&6
echo "$progname:678:checking for $compiler option to produce PIC" 1>&5
if test -z "$ac_cv_prog_cc_pic"; then
echo "$ac_t"none 1>&6
else
echo "$ac_t""$ac_cv_prog_cc_pic" 1>&6
# Check to make sure the pic_flag actually works.
echo $ac_n "checking if $compiler PIC flag $ac_cv_prog_cc_pic works... $ac_c" 1>&6
echo "$progname:687:checking that $compiler PIC flag $ac_cv_prog_cc_pic works." 1>&5
if test "X${ac_cv_prog_cc_pic_works+set}" = Xset && \
test "X${ac_cv_prog_cc_pic_works}" != X; then
echo $ac_n "(cached) $ac_c" 1>&6
else
ac_cv_prog_cc_pic_works=yes
$rm conftest*
echo $lt_simple_compile_test_code > conftest.$ac_ext
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $ac_cv_prog_cc_pic -DPIC"
if { (eval echo $progname:697: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest.$objext; then
# Append any warnings to the config.log.
cat conftest.err 1>&5
case $host_os in
hpux9* | hpux10* | hpux11*)
# On HP-UX, both CC and GCC only warn that PIC is supported... then
# they create non-PIC objects. So, if there were any warnings, we
# assume that PIC is not supported.
if test -s conftest.err; then
ac_cv_prog_cc_pic_works=no
ac_cv_prog_cc_can_build_shared=no
ac_cv_prog_cc_pic=
else
ac_cv_prog_cc_pic_works=yes
ac_cv_prog_cc_pic=" $ac_cv_prog_cc_pic"
fi
;;
*)
ac_cv_prog_cc_pic_works=yes
ac_cv_prog_cc_pic=" $ac_cv_prog_cc_pic"
;;
esac
else
# Append any errors to the config.log.
cat conftest.err 1>&5
ac_cv_prog_cc_pic_works=no
ac_cv_prog_cc_can_build_shared=no
ac_cv_prog_cc_pic=
fi
CFLAGS="$save_CFLAGS"
$rm conftest*
fi
# Belt *and* braces to stop my trousers falling down:
if test "X$ac_cv_prog_cc_pic_works" = Xno; then
ac_cv_prog_cc_pic=
ac_cv_prog_cc_can_build_shared=no
fi
echo "$ac_t""$ac_cv_prog_cc_pic_works" 1>&6
fi
# Check for any special shared library compilation flags.
if test -n "$ac_cv_prog_cc_shlib"; then
echo "$progname: warning: \`$CC' requires \`$ac_cv_prog_cc_shlib' to build shared libraries" 1>&2
if echo "$old_CC $old_CFLAGS " | egrep -e "[ ]$ac_cv_prog_cc_shlib[ ]" >/dev/null; then :
else
echo "$progname: add \`$ac_cv_prog_cc_shlib' to the CC or CFLAGS env variable and reconfigure" 1>&2
ac_cv_prog_cc_can_build_shared=no
fi
fi
echo $ac_n "checking if $compiler static flag $ac_cv_prog_cc_static works... $ac_c" 1>&6
echo "$progname:749: checking if $compiler static flag $ac_cv_prog_cc_static works" >&5
if test "X${ac_cv_prog_cc_static_works+set}" = Xset && \
test "X${ac_cv_prog_cc_static_works}" != X; then
echo $ac_n "(cached) $ac_c" 1>&6
else
$rm conftest*
echo $lt_simple_link_test_code > conftest.$ac_ext
save_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS $ac_cv_prog_cc_static"
if { (eval echo $progname:758: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
ac_cv_prog_cc_static_works=yes
else
ac_cv_prog_cc_static_works=no
ac_cv_prog_cc_static=
fi
LDFLAGS="$save_LDFLAGS"
$rm conftest*
fi
# Belt *and* braces to stop my trousers falling down:
if test "X$ac_cv_prog_cc_static_works" = Xno; then
ac_cv_prog_cc_static=
fi
echo "$ac_t""$ac_cv_prog_cc_static_works" 1>&6
pic_flag="$ac_cv_prog_cc_pic"
special_shlib_compile_flags="$ac_cv_prog_cc_shlib"
wl="$ac_cv_prog_cc_wl"
link_static_flag="$ac_cv_prog_cc_static"
no_builtin_flag="$ac_cv_prog_cc_no_builtin"
can_build_shared="$ac_cv_prog_cc_can_build_shared"
# find the maximum length of command line arguments
echo "$progname:780: finding the maximum length of command line arguments" 1>&5
echo $ac_n "finding the maximum length of command line arguments... $ac_c" 1>&6
if test "${lt_cv_sys_max_cmd_len+set}" = set; then
echo $ac_n "(cached) $ac_c" 1>&6
else
i=0
testring="ABCD"
# If test is not a shell built-in, we'll probably end up computing a
# maximum length that is only half of the actual maximum length, but
# we can't tell.
while test "X"`$CONFIG_SHELL $0 --fallback-echo "X$testring" 2>/dev/null` \
= "XX$testring" &&
new_result=`expr "X$testring" : ".*" 2>&1` &&
lt_cv_sys_max_cmd_len=$new_result &&
test $i != 17 # 1/2 MB should be enough
do
i=`expr $i + 1`
testring=$testring$testring
done
testring=
# add a significant safety factor because C++ compilers can tack on massive amounts
# of additional arguments before passing them to the linker. 1/4 should be good.
len=`expr $lt_cv_sys_max_cmd_len \/ 4`
lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len - $len`
fi
echo "$progname:@lineno@: result: $lt_cv_sys_max_cmd_len" 1>&5
echo "${ac_t}$lt_cv_sys_max_cmd_len" 1>&6
if test -n $lt_cv_sys_max_cmd_len ; then
max_cmd_len=$lt_cv_sys_max_cmd_len
else
max_cmd_len=none
fi
# Check to see if options -o and -c are simultaneously supported by compiler
echo $ac_n "checking if $compiler supports -c -o file.$objext... $ac_c" 1>&6
if test "${lt_cv_compiler_c_o+set}" = set; then
echo $ac_n "(cached) $ac_c" 1>&6
else
$rm -r conftest 2>/dev/null
mkdir conftest
cd conftest
$rm conftest*
echo $lt_simple_compile_test_code > conftest.$ac_ext
mkdir out
# According to Tom Tromey, Ian Lance Taylor reported there are C compilers
# that will create temporary files in the current directory regardless of
# the output directory. Thus, making CWD read-only will cause this test
# to fail, enabling locking or at least warning the user not to do parallel
# builds.
chmod -w .
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -o out/conftest2.$objext"
echo "$progname:833: checking if $compiler supports -c -o file.$objext" >&5
if { (eval echo $progname:834: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>out/conftest.err; } && test -s out/conftest2.$objext; then
# The compiler can only warn and ignore the option if not recognized
# So say no if there are warnings
if test -s out/conftest.err; then
lt_cv_compiler_c_o=no
else
lt_cv_compiler_c_o=yes
fi
else
# Append any errors to the config.log.
cat out/conftest.err 1>&5
lt_cv_compiler_c_o=no
fi
CFLAGS="$save_CFLAGS"
chmod u+w .
$rm conftest* out/*
rmdir out
cd ..
rmdir conftest
$rm -r conftest 2>/dev/null
fi
compiler_c_o=$lt_cv_compiler_c_o
echo "${ac_t}$compiler_c_o" 1>&6
# Check to see if we can do hard links to lock some files if needed
hard_links="nottested"
if test "$compiler_c_o" = no && test "$need_locks" != no; then
# do not overwrite the value of need_locks provided by the user
echo $ac_n "checking if we can lock with hard links... $ac_c" 1>&6
hard_links=yes
$rm conftest*
ln conftest.a conftest.b 2>/dev/null && hard_links=no
touch conftest.a
ln conftest.a conftest.b 2>&5 || hard_links=no
ln conftest.a conftest.b 2>/dev/null && hard_links=no
echo "$ac_t$hard_links" 1>&6
$rm conftest*
if test "$hard_links" = no; then
echo "*** WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2
need_locks=warn
fi
else
need_locks=no
fi
if test "$with_gcc" = yes; then
# Check to see if options -fno-rtti -fno-exceptions are supported by compiler
echo $ac_n "checking if $compiler supports -fno-rtti -fno-exceptions ... $ac_c" 1>&6
$rm conftest*
echo $lt_simple_compile_test_code > conftest.$ac_ext
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fno-rtti -fno-exceptions -c conftest.$ac_ext"
echo "$progname:887: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
if { (eval echo $progname:888: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest.$objext; then
# The compiler can only warn and ignore the option if not recognized
# So say no if there are warnings
if test -s conftest.err; then
echo "$ac_t"no 1>&6
compiler_rtti_exceptions=no
else
echo "$ac_t"yes 1>&6
compiler_rtti_exceptions=yes
fi
else
# Append any errors to the config.log.
cat conftest.err 1>&5
compiler_rtti_exceptions=no
echo "$ac_t"no 1>&6
fi
CFLAGS="$save_CFLAGS"
$rm conftest*
if test "$compiler_rtti_exceptions" = "yes"; then
no_builtin_flag=' -fno-builtin -fno-rtti -fno-exceptions'
else
no_builtin_flag=' -fno-builtin'
fi
fi
# See if the linker supports building shared libraries.
echo $ac_n "checking whether the linker ($LD) supports shared libraries... $ac_c" 1>&6
echo "$ac_t$ld_shlibs" 1>&6
test "$ld_shlibs" = no && can_build_shared=no
# Check hardcoding attributes.
echo $ac_n "checking how to hardcode library paths into programs... $ac_c" 1>&6
hardcode_action=
if test -n "$hardcode_libdir_flag_spec" || \
test -n "$runpath_var"; then
# We can hardcode non-existant directories.
if test "$hardcode_direct" != no &&
# If the only mechanism to avoid hardcoding is shlibpath_var, we
# have to relink, otherwise we might link with an installed library
# when we should be linking with a yet-to-be-installed one
## test "$hardcode_shlibpath_var" != no &&
test "$hardcode_minus_L" != no; then
# Linking always hardcodes the temporary library directory.
hardcode_action=relink
else
# We can link without hardcoding, and we can hardcode nonexisting dirs.
hardcode_action=immediate
fi
else
# We cannot hardcode anything, or else we can only hardcode existing
# directories.
hardcode_action=unsupported
fi
echo "$ac_t$hardcode_action" 1>&6
echo $ac_n "checking whether stripping libraries is possible... $ac_c" 1>&6
if test -n "$STRIP" && $STRIP -V 2>&1 | grep "GNU strip" >/dev/null; then
test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
test -z "$striplib" && striplib="$STRIP --strip-unneeded"
echo "${ac_t}yes" 1>&6
else
echo "${ac_t}no" 1>&6
fi
case $reload_flag in
"" | " "*) ;;
*) reload_flag=" $reload_flag" ;;
esac
reload_cmds='$LD$reload_flag -o $output$reload_objs'
test -z "$deplibs_check_method" && deplibs_check_method=unknown
# PORTME Fill in your ld.so characteristics
library_names_spec=
libname_spec='lib$name'
soname_spec=
postinstall_cmds=
postuninstall_cmds=
finish_cmds=
finish_eval=
shlibpath_var=
shlibpath_overrides_runpath=unknown
version_type=none
dynamic_linker="$host_os ld.so"
sys_lib_dlsearch_path_spec="/lib /usr/lib"
sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
echo $ac_n "checking dynamic linker characteristics... $ac_c" 1>&6
case $host_os in
aix3*)
version_type=linux
library_names_spec='${libname}${release}.so$versuffix $libname.a'
shlibpath_var=LIBPATH
# AIX 3 has no versioning support, so we append a major version to the name.
soname_spec='${libname}${release}.so$major'
;;
aix4* | aix5*)
version_type=linux
if test "$host_cpu" = ia64; then
# AIX 5 supports IA64
library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
shlibpath_var=LD_LIBRARY_PATH
else
# AIX (on Power*) has no versioning support, so currently we can not hardcode correct
# soname into executable. Probably we can add versioning support to
# collect2, so additional links can be useful in future.
# We preserve .a as extension for shared libraries though AIX4.2