Remove references to expat from toolchain/build/configure.

Bug: http://b/21907643
Change-Id: I91cfcbaa1c403ce6ef047f049cb2c623dde6e05e
diff --git a/Makefile.in b/Makefile.in
index 7537a77..3d896e0 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -83,7 +83,6 @@
 CLOOG_VERSION=cloog-@CLOOG_VERSION@
 ISL_VERSION=isl-@ISL_VERSION@
 GDB_VERSION=gdb-@GDB_VERSION@
-EXPAT_VERSION=expat-@EXPAT_VERSION@
 WITH_PYTHON=@WITH_PYTHON@
 HAVE_MPC=@have_mpc@
 HAVE_MPFR=@have_mpfr@
@@ -91,7 +90,6 @@
 HAVE_PPL=@have_ppl@
 HAVE_CLOOG=@have_cloog@
 HAVE_ISL=@have_isl@
-HAVE_EXPAT=@have_expat@
 ENABLE_GOLD=@enable_gold@
 ENABLE_LD_DEFAULT=@enable_ld_default@
 STAMP=touch
@@ -757,31 +755,6 @@
 endif
 install-host-cloog: stmp-install-host-cloog
 
-# host expat rules
-.PHONY: config-host-expat build-host-expat install-host-expat
-config-host-expat: stmp-config-host-expat
-EXPAT_CONFIG_ARGS=$(host_baseargs) --prefix=$(TEMP_INSTALLDIR) --disable-shared \
-	--host=${cur_host} --build=${cur_build}
-stmp-config-host-expat: config.status  $(canadian_stmp)
-	([ -d ${EXPAT_VERSION} ] || \
-	  mkdir ${EXPAT_VERSION}) && \
-	($(canadian_env) \
-	 cd ${EXPAT_VERSION} ; \
-	 $(call find-package-srcdir, ${EXPAT_VERSION})/configure \
-	  $(EXPAT_CONFIG_ARGS)) && \
-	$(STAMP) $@
-stmp-build-host-expat: stmp-config-host-expat
-	($(canadian_env) \
-	 $(MAKE) -C ${EXPAT_VERSION}) && $(STAMP) $@
-build-host-expat: stmp_build-host-expat
-ifeq ($(HAVE_EXPAT),no)
-stmp-install-host-expat: stmp-build-host-expat
-	$(MAKE) -C ${EXPAT_VERSION} install -j1 && $(STAMP) $@
-else
-stmp-install-host-expat:
-endif
-install-host-expat: stmp-install-host-expat
-
 # target gdb rules
 .PHONY: config-target-gdb build-target-gdb install-target-gdb
 ifeq ($(GDB_VERSION),gdb-none)
@@ -795,11 +768,7 @@
 	--target=$(GDB_TARGET) --host=${cur_host} --build=${cur_build} \
 	$(WITH_PYTHON) --disable-nls
 
-# For gdb versions 7.2 and higher, expat is required.
-ifeq ($(GDB_MIN_VERSION_7_2),yes)
-stmp-config-target-gdb: stmp-install-host-expat
-GDB_CONFIG_ARGS += --with-expat --with-libexpat-prefix=$(EXPAT_DIR)
-endif
+GDB_CONFIG_ARGS += --with-expat=no
 
 stmp-config-target-gdb: config.status $(canadian_stmp)
 	([ -d ${GDB_VERSION} ] || \
diff --git a/README b/README
index cad1102..70fdcd3 100644
--- a/README
+++ b/README
@@ -1,6 +1,6 @@
 This is the top-level of the new Android GNU toolchain.  It is designed so
 that tools in the GNU toolchain and their different versions can be
-dropped into the Androind toolchain easily.
+dropped into the Android toolchain easily.
 
 1. Supported platforms.
 
diff --git a/configure b/configure
index f35cd7d..253254c 100755
--- a/configure
+++ b/configure
@@ -552,7 +552,6 @@
 
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
-have_expat
 have_cloog
 have_isl
 have_ppl
@@ -561,7 +560,6 @@
 have_mpc
 sysroot
 WITH_PYTHON
-EXPAT_VERSION
 GDB_MIN_VERSION_7_2
 GDB_VERSION
 CLOOG_VERSION
@@ -657,7 +655,6 @@
 with_cloog_version
 with_isl_version
 with_gdb_version
-with_expat_version
 with_python
 with_sysroot
 with_mpc
@@ -666,7 +663,6 @@
 with_ppl
 with_cloog
 with_isl
-with_expat
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1318,8 +1314,6 @@
                           use isl-VERSION (default is 0.11.1)
   --with-gdb-version=VERSION
                           use gdb-VERSION (default is 6.6)
-  --with-expat-version=VERSION
-                          use expat-VERSION (default is 2.0.1)
   --with-python=WITH_PYTHON
                           use python WITH_PYTHON)
   --with-sysroot=DIR
@@ -1336,8 +1330,6 @@
                           specify prefix directory for the installed CLooG package.
   --with-isl=PATH
                           specify prefix directory for the installed ISL package.
-  --with-expat=PATH
-                          specify prefix directory for the installed EXPAT package.
 
 Report bugs to the package provider.
 _ACEOF
@@ -2803,7 +2795,7 @@
   fi
 fi
 
-# figure out if we need to build expat for gdb 7.2+
+# Figure out what version of gdb we're building.
 gdb_version_file="${srcdir}/../gdb/gdb-${GDB_VERSION}/gdb/version.in"
 if test -f "${gdb_version_file}"; then
   GDB_MAJOR=`head -n 1 $gdb_version_file | sed  -e "s/[^0-9].*//"`
@@ -2820,49 +2812,6 @@
   GDB_MIN_VERSION_7_2="yes"
 fi
 
-
-if test "$GDB_MIN_VERSION_7_2" == "yes"; then
-# expat version (default is 2.0.1)
-# expat is only used for gdb version higher than 7.2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking expat version" >&5
-$as_echo_n "checking expat version... " >&6; }
-
-# Check whether --with-expat-version was given.
-if test "${with_expat_version+set}" = set; then :
-  withval=$with_expat_version; if test x"$withval" != x ; then
-     EXPAT_VERSION="$withval"
-   fi
-else
-  EXPAT_VERSION="2.0.1"
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $EXPAT_VERSION" >&5
-$as_echo "$EXPAT_VERSION" >&6; }
-x=expat-${EXPAT_VERSION}; tool=$(echo "$x" | sed -e 's/-.*//'); version=$(echo "$x" | sed -e 's/[^-]*-//'); \
-if test \( ! -d $srcdir/../$tool/expat-${EXPAT_VERSION} \) -a \( x"$version" != x"none"  \) ; then
-  if test -f $srcdir/../$tool/expat-${EXPAT_VERSION}.tar ; then
-    mkdir -p temp-src && tar -C temp-src -xf $srcdir/../$tool/expat-${EXPAT_VERSION}.tar
-  elif test -f $srcdir/../$tool/expat-${EXPAT_VERSION}.tar.gz ; then
-    mkdir -p temp-src && tar -C temp-src -xzf $srcdir/../$tool/expat-${EXPAT_VERSION}.tar.gz
-  elif test -f $srcdir/../$tool/expat-${EXPAT_VERSION}.tgz ; then
-    mkdir -p temp-src && tar -C temp-src -xzf $srcdir/../$tool/expat-${EXPAT_VERSION}.tgz
-  elif test -f $srcdir/../$tool/expat-${EXPAT_VERSION}.tar.bz2 ; then
-    mkdir -p temp-src && tar -C temp-src -xjf $srcdir/../$tool/expat-${EXPAT_VERSION}.tar.bz2
-  elif test -f $srcdir/../tarballs/expat-${EXPAT_VERSION}.tar ; then
-    mkdir -p temp-src && tar -C temp-src -xf $srcdir/../tarballs/expat-${EXPAT_VERSION}.tar
-  elif test -f $srcdir/../tarballs/expat-${EXPAT_VERSION}.tar.gz ; then
-    mkdir -p temp-src && tar -C temp-src -xzf $srcdir/../tarballs/expat-${EXPAT_VERSION}.tar.gz
-  elif test -f $srcdir/../tarballs/expat-${EXPAT_VERSION}.tgz ; then
-    mkdir -p temp-src && tar -C temp-src -xzf $srcdir/../tarballs/expat-${EXPAT_VERSION}.tgz
-  elif test -f $srcdir/../tarballs/expat-${EXPAT_VERSION}.tar.bz2 ; then
-    mkdir -p temp-src && tar -C temp-src -xjf $srcdir/../tarballs/expat-${EXPAT_VERSION}.tar.bz2
-  else
-    as_fn_error "'package expat-${EXPAT_VERSION} does not exist.'" "$LINENO" 5
-  fi
-fi
-fi
-
-
 if test "$GDB_MIN_VERSION_7_2" == "yes"; then
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking with python" >&5
 $as_echo_n "checking with python... " >&6; }
@@ -3023,23 +2972,6 @@
 
 
 
-# Specify a location for expat
-
-# Check whether --with-expat was given.
-if test "${with_expat+set}" = set; then :
-  withval=$with_expat; if test -d "$withval" ; then
-     have_expat="$withval"
-   elif test x"$withval" != x"no"; then
-     as_fn_error "invalid value for --with-expat" "$LINENO" 5
-   else
-     have_expat=no
-   fi
-else
-  have_expat=no
-fi
-
-
-
 cat >confcache <<\_ACEOF
 # This file is a shell script that caches the results of configure
 # tests run on this system so they can be shared between configure
diff --git a/configure.ac b/configure.ac
index b316a7e..00249c9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -525,7 +525,7 @@
 AC_SUBST(GDB_VERSION)
 ANDROID_CHECK_PACKAGE(gdb-${GDB_VERSION})
 
-# figure out if we need to build expat for gdb 7.2+
+# Figure out what version of gdb we're building.
 gdb_version_file="${srcdir}/../gdb/gdb-${GDB_VERSION}/gdb/version.in"
 if test -f "${gdb_version_file}"; then
   GDB_MAJOR=`head -n 1 $gdb_version_file | sed  -e "s/[[^0-9]].*//"`
@@ -544,22 +544,6 @@
 AC_SUBST(GDB_MIN_VERSION_7_2)
 
 if test "$GDB_MIN_VERSION_7_2" == "yes"; then
-# expat version (default is 2.0.1)
-# expat is only used for gdb version higher than 7.2
-AC_MSG_CHECKING([expat version])
-AC_ARG_WITH([expat-version],
-  [  --with-expat-version=VERSION
-                          use expat-VERSION (default is 2.0.1)],
-  [if test x"$withval" != x ; then
-     EXPAT_VERSION="$withval"
-   fi],
-[EXPAT_VERSION="2.0.1"])
-AC_MSG_RESULT($EXPAT_VERSION)
-ANDROID_CHECK_PACKAGE(expat-${EXPAT_VERSION})
-fi
-AC_SUBST(EXPAT_VERSION)
-
-if test "$GDB_MIN_VERSION_7_2" == "yes"; then
 AC_MSG_CHECKING([with python])
 AC_ARG_WITH([python],
   [  --with-python=WITH_PYTHON
@@ -687,17 +671,4 @@
   [have_isl=no])
 AC_SUBST(have_isl)
 
-# Specify a location for expat
-AC_ARG_WITH(expat, [  --with-expat=PATH
-                          specify prefix directory for the installed EXPAT package.],
-  [if test -d "$withval" ; then
-     have_expat="$withval"
-   elif test x"$withval" != x"no"; then
-     AC_MSG_ERROR(invalid value for --with-expat)
-   else
-     have_expat=no
-   fi],
-  [have_expat=no])
-AC_SUBST(have_expat)
-
 AC_OUTPUT