--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgcc/configure.ac	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,260 @@
+dnl Process this file with autoconf to produce a configure script.
+
+sinclude(../config/enable.m4)
+sinclude(../config/tls.m4)
+sinclude(../config/acx.m4)
+sinclude(../config/no-executables.m4)
+sinclude(../config/override.m4)
+
+AC_PREREQ(2.59)
+AC_INIT([GNU C Runtime Library], 1.0,,[libgcc])
+AC_CONFIG_SRCDIR([static-object.mk])
+
+AC_ARG_WITH(target-subdir,
+[  --with-target-subdir=SUBDIR      Configuring in a subdirectory for target])
+AC_ARG_WITH(cross-host,
+[  --with-cross-host=HOST           Configuring with a cross compiler])
+AC_ARG_WITH(ld,
+[  --with-ld               arrange to use the specified ld (full pathname)])
+
+if test "${srcdir}" = "."; then
+  if test -n "${with_build_subdir}"; then
+    libgcc_topdir="${srcdir}/../.."
+    with_target_subdir=
+  elif test -z "${with_target_subdir}"; then
+    libgcc_topdir="${srcdir}/.."
+  else
+    if test "${with_target_subdir}" != "."; then
+      libgcc_topdir="${srcdir}/${with_multisrctop}../.."
+    else
+      libgcc_topdir="${srcdir}/${with_multisrctop}.."
+    fi
+  fi
+else
+  libgcc_topdir="${srcdir}/.."
+fi
+AC_SUBST(libgcc_topdir)
+AC_CONFIG_AUX_DIR($libgcc_topdir)
+
+AC_ARG_ENABLE(shared,
+[  --disable-shared        don't provide a shared libgcc],
+[
+  case $enable_shared in
+  yes | no) ;;
+  *)
+    enable_shared=no
+    IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
+    for pkg in $enableval; do
+      if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
+	enable_shared=yes
+      fi
+    done
+    IFS="$ac_save_ifs"
+    ;;
+  esac
+], [enable_shared=yes])
+AC_SUBST(enable_shared)
+
+AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
+AC_ARG_ENABLE(version-specific-runtime-libs,
+[  --enable-version-specific-runtime-libs    Specify that runtime libraries should be installed in a compiler-specific directory ],
+[case "$enableval" in
+ yes) version_specific_libs=yes ;;
+ no)  version_specific_libs=no ;;
+ *)   AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
+ esac],
+[version_specific_libs=no])
+AC_MSG_RESULT($version_specific_libs)
+
+AC_ARG_WITH(slibdir,
+[  --with-slibdir=DIR      shared libraries in DIR [LIBDIR]],
+slibdir="$with_slibdir",
+if test "${version_specific_libs}" = yes; then
+  slibdir='$(libsubdir)'
+elif test -n "$with_cross_host" && test x"$with_cross_host" != x"no"; then
+  slibdir='$(exec_prefix)/$(host_noncanonical)/lib'
+else
+  slibdir='$(libdir)'
+fi)
+AC_SUBST(slibdir)
+
+AC_PROG_INSTALL
+
+AC_PROG_AWK
+# We need awk; bail out if it's missing.
+case ${AWK} in
+  "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
+esac
+
+AC_CANONICAL_HOST
+ACX_NONCANONICAL_HOST
+GCC_TOPLEV_SUBDIRS
+
+dnl These must be called before AM_PROG_LIBTOOL, because it may want
+dnl to call AC_CHECK_PROG.
+AC_CHECK_TOOL(AR, ar)
+AC_CHECK_TOOL(LIPO, lipo, :)
+AC_CHECK_TOOL(NM, nm)
+AC_CHECK_TOOL(RANLIB, ranlib, :)
+AC_CHECK_TOOL(STRIP, strip, :)
+AC_PROG_LN_S
+
+GCC_NO_EXECUTABLES
+AC_PROG_CC
+AC_PROG_CPP_WERROR
+
+# Check for decimal float support.
+AC_CACHE_CHECK([whether decimal floating point is supported], [libgcc_cv_dfp],
+	       [AC_COMPILE_IFELSE([_Decimal32 x;], [libgcc_cv_dfp=yes],
+				  [libgcc_cv_dfp=no])])
+decimal_float=$libgcc_cv_dfp
+AC_SUBST(decimal_float)
+
+AC_ARG_ENABLE(decimal-float,
+[  --enable-decimal-float={no,yes,bid,dpd}
+			enable decimal float extension to C.  Selecting 'bid'
+			or 'dpd' choses which decimal floating point format
+			to use],
+[
+  case $enable_decimal_float in
+    yes | no | bid | dpd) ;;
+    *) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float.
+Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
+  esac
+],
+[
+  case $host in
+    powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*)
+      enable_decimal_float=yes
+      ;;
+    *)
+      enable_decimal_float=no
+      ;;
+  esac
+])
+
+# x86's use BID format instead of DPD
+if test x$enable_decimal_float = xyes; then
+  case $host in
+    i?86*-*-linux* | x86_64*-*-linux*)
+      enable_decimal_float=bid
+      ;;
+    *)
+      enable_decimal_float=dpd
+      ;;
+  esac
+fi
+AC_SUBST(enable_decimal_float)
+
+# Check for fixed-point support.
+AC_CACHE_CHECK([whether fixed-point is supported], [libgcc_cv_fixed_point],
+	       [AC_COMPILE_IFELSE([_Sat _Fract x;], [libgcc_cv_fixed_point=yes],
+				  [libgcc_cv_fixed_point=no])])
+fixed_point=$libgcc_cv_fixed_point
+AC_SUBST(fixed_point)
+
+# Check 32bit or 64bit for x86.
+case ${host} in
+i?86*-*-* | x86_64*-*-*)
+  cat > conftest.c <<EOF
+#ifdef __x86_64__
+host_address=64
+#else
+host_address=32
+#endif
+EOF
+    eval `${CC-cc} -E conftest.c | grep host_address=`
+    rm -f conftest.c
+    ;;
+esac
+
+# Collect host-machine-specific information.
+. ${srcdir}/config.host
+
+# Check if Solaris/x86 linker supports ZERO terminator unwind entries.
+# This is after config.host so we can augment tmake_file.
+# Link with -nostartfiles -nodefaultlibs since neither are present while
+# building libgcc.
+case ${host} in
+i?86-*-solaris2.1[[0-9]]*)
+  cat > conftest.s <<EOF
+	.section	.eh_frame,"a",@unwind
+	.zero	4
+	.section	.jcr,"aw",@progbits
+	.zero	8
+EOF
+  if AC_TRY_COMMAND(${CC-cc} -shared -nostartfiles -nodefaultlibs -o conftest.so conftest.s 1>&AS_MESSAGE_LOG_FD); then
+      # configure expects config files in libgcc/config, so need a relative
+      # path here.
+      tmake_file="${tmake_file} ../../gcc/config/i386/t-crtstuff"
+  fi
+  ;;
+esac
+
+# Check for visibility support.  This is after config.host so that
+# we can check for asm_hidden_op.
+AC_CACHE_CHECK([for __attribute__((visibility("hidden")))],
+    libgcc_cv_hidden_visibility_attribute, [
+	echo 'int __attribute__ ((visibility ("hidden"))) foo (void) { return 1; }' > conftest.c
+	libgcc_cv_hidden_visibility_attribute=no
+	if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then
+	    if grep "\\$asm_hidden_op.*foo" conftest.s >/dev/null; then
+		libgcc_cv_hidden_visibility_attribute=yes
+	    fi
+	fi
+	rm -f conftest.*
+    ])
+
+if test $libgcc_cv_hidden_visibility_attribute = yes; then
+    vis_hide='-fvisibility=hidden -DHIDE_EXPORTS'
+else
+    vis_hide=
+fi
+AC_SUBST(vis_hide)
+
+# See if we have thread-local storage.  We can only test assembler
+# sicne link-time and run-time tests require the newly built
+# gcc, which can't be used to build executable due to that libgcc
+# is yet to be built here.
+GCC_CHECK_CC_TLS
+set_have_cc_tls=
+if test "$enable_tls $gcc_cv_have_cc_tls" = "yes yes"; then
+  set_have_cc_tls="-DHAVE_CC_TLS"
+fi
+AC_SUBST(set_have_cc_tls)
+
+# Conditionalize the makefile for this target machine.
+tmake_file_=
+for f in ${tmake_file}
+do
+	if test -f ${srcdir}/config/$f
+	then
+		tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
+	fi
+done
+tmake_file="${tmake_file_}"
+AC_SUBST(tmake_file)
+
+# Substitute configuration variables
+AC_SUBST(extra_parts)
+AC_SUBST(asm_hidden_op)
+
+# We need multilib support.
+AC_CONFIG_FILES([Makefile])
+AC_CONFIG_COMMANDS([default],
+  [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
+if test -n "$CONFIG_FILES"; then
+  # FIXME: We shouldn't need to set ac_file
+  ac_file=Makefile
+  . ${libgcc_topdir}/config-ml.in
+fi]],
+[[srcdir=${srcdir}
+host=${host}
+with_target_subdir=${with_target_subdir}
+with_multisubdir=${with_multisubdir}
+ac_configure_args="--enable-multilib ${ac_configure_args}"
+CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
+libgcc_topdir=${libgcc_topdir}
+CC="${CC}"
+]])
+AC_OUTPUT