Add support for Canadian Cross builds where the host executables are not

runnable on the build machine.

There are a few bits that need built for the build environment (TableGen).
This patch builds those bits, and the associated libraries, for the build
environment as well as the (usual) host environment.

Thanks to Eric C. and Devang P. for pre-commit review.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56975 91177308-0d34-0410-b5e6-96231b3b80d8

5 files changed, 237 insertions, 49 deletions

diff --git a/Makefile b/Makefile
index 83b789fa22..58a5fe5e18 100644
--- a/Makefile
+++ b/Makefile
@@ -25,6 +25,12 @@ EXTRA_DIST := test llvm.spec include win32 Xcode
 
 include $(LEVEL)/Makefile.config 
 
+# When cross-compiling, there are some things (tablegen) that need to
+# be build for the build system.
+ifeq ($(LLVM_CROSS_COMPILING),1)
+  BUILD_TARGET_DIRS := lib/System lib/Support utils
+endif
+
 # llvm-gcc4 doesn't need runtime libs.  llvm-gcc4 is the only supported one.
 # FIXME: Remove runtime entirely once we have an understanding of where
 # libprofile etc should go.
diff --git a/Makefile.config.in b/Makefile.config.in
index 5a0dcd59c3..7f2acf2397 100644
--- a/Makefile.config.in
+++ b/Makefile.config.in
@@ -102,6 +102,11 @@ LLVM_CROSS_COMPILING=@LLVM_CROSS_COMPILING@
 # tablegen call if we're cross-compiling).
 BUILD_EXEEXT=@BUILD_EXEEXT@
 
+# Compilers for the build platflorm (mainly for tablegen
+# call if we're cross-compiling).
+BUILD_CC=@BUILD_CC@
+BUILD_CXX=@BUILD_CXX@
+
 # Target triple (cpu-vendor-os) for which we should generate code
 TARGET_TRIPLE=@target@
 
diff --git a/Makefile.rules b/Makefile.rules
index d0d83c038b..a9a8c34cb8 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -302,13 +302,24 @@ endif
 #--------------------------------------------------------------------
 # Directory locations
 #--------------------------------------------------------------------
-ObjDir      := $(PROJ_OBJ_DIR)/$(BuildMode)
-LibDir      := $(PROJ_OBJ_ROOT)/$(BuildMode)/lib
-ToolDir     := $(PROJ_OBJ_ROOT)/$(BuildMode)/bin
-ExmplDir    := $(PROJ_OBJ_ROOT)/$(BuildMode)/examples
-LLVMLibDir  := $(LLVM_OBJ_ROOT)/$(BuildMode)/lib
-LLVMToolDir := $(LLVM_OBJ_ROOT)/$(BuildMode)/bin
-LLVMExmplDir:= $(LLVM_OBJ_ROOT)/$(BuildMode)/examples
+TargetMode :=
+ifeq ($(LLVM_CROSS_COMPILING),1)
+  ifeq ($(BUILD_COMPONENT),1)
+    TargetMode := Build
+  else
+    TargetMode := Host
+  endif
+  BuildLLVMToolDir := $(LLVM_OBJ_ROOT)/$(BuildMode)/Build/bin
+endif
+
+ObjRootDir  := $(PROJ_OBJ_DIR)/$(BuildMode)
+ObjDir      := $(ObjRootDir)/$(TargetMode)
+LibDir      := $(PROJ_OBJ_ROOT)/$(BuildMode)/$(TargetMode)/lib
+ToolDir     := $(PROJ_OBJ_ROOT)/$(BuildMode)/$(TargetMode)/bin
+ExmplDir    := $(PROJ_OBJ_ROOT)/$(BuildMode)/$(TargetMode)/examples
+LLVMLibDir  := $(LLVM_OBJ_ROOT)/$(BuildMode)/$(TargetMode)/lib
+LLVMToolDir := $(LLVM_OBJ_ROOT)/$(BuildMode)/$(TargetMode)/bin
+LLVMExmplDir:= $(LLVM_OBJ_ROOT)/$(BuildMode)/$(TargetMode)/examples
 CFERuntimeLibDir := $(LLVMGCCDIR)/lib
 
 #--------------------------------------------------------------------
@@ -324,7 +335,7 @@ LLVMAS   := $(LLVMToolDir)/llvm-as$(EXEEXT)
 endif
 ifndef TBLGEN
   ifeq ($(LLVM_CROSS_COMPILING),1)
-    TBLGEN   := $(LLVMToolDir)/tblgen$(BUILD_EXEEXT)
+    TBLGEN   := $(BuildLLVMToolDir)/tblgen$(EXEEXT)
   else
     TBLGEN   := $(LLVMToolDir)/tblgen$(EXEEXT)
   endif
@@ -468,22 +479,33 @@ CPP.Flags     += $(sort -I$(PROJ_OBJ_DIR) -I$(PROJ_SRC_DIR) \
 	         $(LLVM_OBJ_ROOT) $(LLVM_SRC_ROOT))) \
 	         $(CPP.BaseFlags)
 
-Compile.C     = $(CC) $(CPP.Flags) $(C.Flags) $(CompileCommonOpts) -c
+ ifeq ($(BUILD_COMPONENT), 1)
+  Compile.C     = $(BUILD_CC) $(CPP.Flags) $(C.Flags) $(CompileCommonOpts) -c
+  Compile.CXX   = $(BUILD_CXX) $(CPP.Flags) $(CXX.Flags) $(CompileCommonOpts) -c
+  Preprocess.CXX= $(BUILD_CXX) $(CPP.Flags) $(CompileCommonOpts) $(CXX.Flags) -E
+  Link          = $(BUILD_CXX) $(CPP.Flags) $(CXX.Flags) $(CompileCommonOpts) \
+                  $(LD.Flags) $(Strip)
+  Relink        = $(BUILD_CXX) $(CPP.Flags) $(CXX.Flags) $(CompileCommonOpts) \
+		  $(Relink.Flags)
+else
+  Compile.C     = $(CC) $(CPP.Flags) $(C.Flags) $(CompileCommonOpts) -c
+  Compile.CXX   = $(CXX) $(CPP.Flags) $(CXX.Flags) $(CompileCommonOpts) -c
+  Preprocess.CXX= $(CXX) $(CPP.Flags) $(CompileCommonOpts) $(CXX.Flags) -E
+  Link          = $(CXX) $(CPP.Flags) $(CXX.Flags) $(CompileCommonOpts) \
+                  $(LD.Flags) $(Strip)
+  Relink        = $(CXX) $(CPP.Flags) $(CXX.Flags) $(CompileCommonOpts) \
+		  $(Relink.Flags)
+endif
+
 LTCompile.C   = $(LIBTOOL) $(LibTool.Flags) --mode=compile $(Compile.C)
 BCCompile.C   = $(LLVMGCCWITHPATH) $(CPP.Flags) $(C.Flags) $(CompileCommonOpts)
 Preprocess.C  = $(CC) $(CPP.Flags) $(C.Flags) $(CompileCommonOpts) -E
 
-Compile.CXX   = $(CXX) $(CPP.Flags) $(CXX.Flags) $(CompileCommonOpts) -c
 LTCompile.CXX = $(LIBTOOL) $(LibTool.Flags) --mode=compile $(Compile.CXX)
 BCCompile.CXX = $(LLVMGXXWITHPATH) $(CPP.Flags) $(CXX.Flags) \
                 $(CompileCommonOpts)
 
-Preprocess.CXX= $(CXX) $(CPP.Flags) $(CompileCommonOpts) $(CXX.Flags) -E
-Link          = $(CXX) $(CPP.Flags) $(CXX.Flags) $(CompileCommonOpts) \
-		$(LD.Flags) $(Strip)
 LTLink        = $(LIBTOOL) $(LibTool.Flags) --mode=link $(Link)
-Relink        = $(CXX) $(CPP.Flags) $(CXX.Flags) $(CompileCommonOpts) \
-		$(Relink.Flags)
 LTRelink      = $(LIBTOOL) $(LibTool.Flags) --mode=link $(Relink)
 LTInstall     = $(LIBTOOL) $(LibTool.Flags) --mode=install $(INSTALL) \
 		$(Install.Flags)
@@ -560,6 +582,16 @@ ifdef DIRS
 SubDirs += $(DIRS)
 
 ifneq ($(PROJ_SRC_ROOT),$(PROJ_OBJ_ROOT))
+ifdef BUILD_TARGET_DIRS
+$(RecursiveTargets)::
+	$(Verb) for dir in $(BUILD_TARGET_DIRS); do \
+	    if [ ! -f $$dir/Makefile ]; then \
+            $(MKDIR) $$dir; \
+              $(CP) $(PROJ_SRC_DIR)/$$dir/Makefile $$dir/Makefile; \
+	    fi; \
+            ($(MAKE) -C $$dir $@ BUILD_COMPONENT=1 NO_INSTALL=1 ) || exit 1; \
+          done
+endif
 $(RecursiveTargets)::
 	$(Verb) for dir in $(DIRS); do \
 	  if [ ! -f $$dir/Makefile ]; then \
@@ -569,6 +601,12 @@ $(RecursiveTargets)::
 	  ($(MAKE) -C $$dir $@ ) || exit 1; \
 	done
 else
+ifdef BUILD_TARGET_DIRS
+$(RecursiveTargets)::
+	$(Verb) for dir in $(BUILD_TARGET_DIRS); do \
+            ($(MAKE) -C $$dir $@ BUILD_COMPONENT=1 NO_INSTALL=1 ) || exit 1; \
+          done
+endif
 $(RecursiveTargets)::
 	$(Verb) for dir in $(DIRS); do \
 	  ($(MAKE) -C $$dir $@ ) || exit 1; \
@@ -1451,8 +1489,8 @@ endif
 # very conservative approach ensuring that empty variables do not cause 
 # errors or disastrous removal.
 clean-local::
-ifneq ($(strip $(ObjDir)),)
-	-$(Verb) $(RM) -rf $(ObjDir)
+ifneq ($(strip $(ObjRootDir)),)
+	-$(Verb) $(RM) -rf $(ObjRootDir)
 endif
 	-$(Verb) $(RM) -f core core.[0-9][0-9]* *.o *.d *~ *.flc
 ifneq ($(strip $(SHLIBEXT)),) # Extra paranoia - make real sure SHLIBEXT is set
diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 35d017e1bd..88d095e88c 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -242,6 +242,14 @@ dnl Check for build platform executable suffix if we're crosscompiling
 if test "$cross_compiling" = yes; then
   AC_SUBST(LLVM_CROSS_COMPILING, [1])
   AC_BUILD_EXEEXT
+  ac_build_prefix=${build_alias}-
+  AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
+  if test -z "$BUILD_CXX"; then
+     AC_CHECK_PROG(BUILD_CXX, g++, g++)
+     if test -z "$BUILD_CXX"; then
+       AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
+     fi
+  fi
 else
   AC_SUBST(LLVM_CROSS_COMPILING, [0])
 fi
diff --git a/configure b/configure
index 8183959c0e..8520c89908 100755
--- a/configure
+++ b/configure
@@ -827,6 +827,7 @@ EGREP
 LLVM_CROSS_COMPILING
 BUILD_CC
 BUILD_EXEEXT
+BUILD_CXX
 CVSBUILD
 ENABLE_OPTIMIZED
 DISABLE_ASSERTIONS
@@ -4565,6 +4566,139 @@ test x"${ac_cv_build_exeext}" != xblank && BUILD_EXEEXT=${ac_cv_build_exeext}
 echo "${ECHO_T}${ac_cv_build_exeext}" >&6; }
 ac_build_exeext=$BUILD_EXEEXT
 
+  ac_build_prefix=${build_alias}-
+  # Extract the first word of "${ac_build_prefix}g++", so it can be a program name with args.
+set dummy ${ac_build_prefix}g++; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_BUILD_CXX+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$BUILD_CXX"; then
+  ac_cv_prog_BUILD_CXX="$BUILD_CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_BUILD_CXX="${ac_build_prefix}g++"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+BUILD_CXX=$ac_cv_prog_BUILD_CXX
+if test -n "$BUILD_CXX"; then
+  { echo "$as_me:$LINENO: result: $BUILD_CXX" >&5
+echo "${ECHO_T}$BUILD_CXX" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+  if test -z "$BUILD_CXX"; then
+     # Extract the first word of "g++", so it can be a program name with args.
+set dummy g++; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_BUILD_CXX+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$BUILD_CXX"; then
+  ac_cv_prog_BUILD_CXX="$BUILD_CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_BUILD_CXX="g++"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+BUILD_CXX=$ac_cv_prog_BUILD_CXX
+if test -n "$BUILD_CXX"; then
+  { echo "$as_me:$LINENO: result: $BUILD_CXX" >&5
+echo "${ECHO_T}$BUILD_CXX" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+     if test -z "$BUILD_CXX"; then
+       # Extract the first word of "c++", so it can be a program name with args.
+set dummy c++; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_BUILD_CXX+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$BUILD_CXX"; then
+  ac_cv_prog_BUILD_CXX="$BUILD_CXX" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; }; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/c++"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_BUILD_CXX="c++"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_BUILD_CXX
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set BUILD_CXX to just the basename; use the full file name.
+    shift
+    ac_cv_prog_BUILD_CXX="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+BUILD_CXX=$ac_cv_prog_BUILD_CXX
+if test -n "$BUILD_CXX"; then
+  { echo "$as_me:$LINENO: result: $BUILD_CXX" >&5
+echo "${ECHO_T}$BUILD_CXX" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+     fi
+  fi
 else
   LLVM_CROSS_COMPILING=0
 
@@ -8868,9 +9002,7 @@ if test "${enable_ltdl_install+set}" = set; then
 fi
 
 
-
-
-if test x"${enable_ltdl_install-no}" != xno; then
+ if test x"${enable_ltdl_install-no}" != xno; then
   INSTALL_LTDL_TRUE=
   INSTALL_LTDL_FALSE='#'
 else
@@ -8878,9 +9010,7 @@ else
   INSTALL_LTDL_FALSE=
 fi
 
-
-
-if test x"${enable_ltdl_convenience-no}" != xno; then
+ if test x"${enable_ltdl_convenience-no}" != xno; then
   CONVENIENCE_LTDL_TRUE=
   CONVENIENCE_LTDL_FALSE='#'
 else
@@ -10647,7 +10777,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 10650 "configure"
+#line 10780 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12791,7 +12921,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 12794 "configure"' > conftest.$ac_ext
+  echo '#line 12924 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -14509,11 +14639,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14512: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14642: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:14516: \$? = $ac_status" >&5
+   echo "$as_me:14646: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -14777,11 +14907,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14780: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14910: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:14784: \$? = $ac_status" >&5
+   echo "$as_me:14914: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -14881,11 +15011,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14884: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:15014: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:14888: \$? = $ac_status" >&5
+   echo "$as_me:15018: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -17333,7 +17463,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 17336 "configure"
+#line 17466 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -17433,7 +17563,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 17436 "configure"
+#line 17566 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -19801,11 +19931,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:19804: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:19934: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:19808: \$? = $ac_status" >&5
+   echo "$as_me:19938: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -19905,11 +20035,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:19908: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:20038: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:19912: \$? = $ac_status" >&5
+   echo "$as_me:20042: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -21475,11 +21605,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:21478: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:21608: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:21482: \$? = $ac_status" >&5
+   echo "$as_me:21612: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -21579,11 +21709,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:21582: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:21712: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:21586: \$? = $ac_status" >&5
+   echo "$as_me:21716: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -23814,11 +23944,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:23817: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:23947: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:23821: \$? = $ac_status" >&5
+   echo "$as_me:23951: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -24082,11 +24212,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:24085: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:24215: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:24089: \$? = $ac_status" >&5
+   echo "$as_me:24219: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -24186,11 +24316,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:24189: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:24319: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:24193: \$? = $ac_status" >&5
+   echo "$as_me:24323: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -35138,6 +35268,7 @@ EGREP!$EGREP$ac_delim
 LLVM_CROSS_COMPILING!$LLVM_CROSS_COMPILING$ac_delim
 BUILD_CC!$BUILD_CC$ac_delim
 BUILD_EXEEXT!$BUILD_EXEEXT$ac_delim
+BUILD_CXX!$BUILD_CXX$ac_delim
 CVSBUILD!$CVSBUILD$ac_delim
 ENABLE_OPTIMIZED!$ENABLE_OPTIMIZED$ac_delim
 DISABLE_ASSERTIONS!$DISABLE_ASSERTIONS$ac_delim
@@ -35163,7 +35294,6 @@ YACC!$YACC$ac_delim
 YFLAGS!$YFLAGS$ac_delim
 BISON!$BISON$ac_delim
 NM!$NM$ac_delim
-ifGNUmake!$ifGNUmake$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -35205,6 +35335,7 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+ifGNUmake!$ifGNUmake$ac_delim
 LN_S!$LN_S$ac_delim
 CMP!$CMP$ac_delim
 CP!$CP$ac_delim
@@ -35285,7 +35416,7 @@ LIBOBJS!$LIBOBJS$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 78; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 79; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5