* acx.m4 (NCN_STRICT_CHECK_TARGET_TOOLS): Fix incremental builds.

	(ACX_HAVE_GCC_FOR_TARGET): Likewise.

1 files changed, 40 insertions, 10 deletions

diff --git a/configure b/configure
index 759be37afed..fe956b1c5d6 100755
--- a/configure
+++ b/configure
@@ -7875,6 +7875,8 @@ if test -z "$ac_cv_prog_CC_FOR_TARGET" ; then
   else
     CC_FOR_TARGET="${ncn_target_tool_prefix}$2"
   fi
+else
+  CC_FOR_TARGET="$ac_cv_prog_CC_FOR_TARGET"
 fi
 
 
@@ -8028,6 +8030,8 @@ if test -z "$ac_cv_prog_CXX_FOR_TARGET" ; then
   else
     CXX_FOR_TARGET="${ncn_target_tool_prefix}$2"
   fi
+else
+  CXX_FOR_TARGET="$ac_cv_prog_CXX_FOR_TARGET"
 fi
 
 
@@ -8176,6 +8180,8 @@ fi
 
 if test -z "$ac_cv_prog_GCC_FOR_TARGET" ; then
   GCC_FOR_TARGET="${CC_FOR_TARGET}"
+else
+  GCC_FOR_TARGET="$ac_cv_prog_GCC_FOR_TARGET"
 fi
 
 
@@ -8329,6 +8335,8 @@ if test -z "$ac_cv_prog_GCJ_FOR_TARGET" ; then
   else
     GCJ_FOR_TARGET="${ncn_target_tool_prefix}$2"
   fi
+else
+  GCJ_FOR_TARGET="$ac_cv_prog_GCJ_FOR_TARGET"
 fi
 
 
@@ -8482,6 +8490,8 @@ if test -z "$ac_cv_prog_GFORTRAN_FOR_TARGET" ; then
   else
     GFORTRAN_FOR_TARGET="${ncn_target_tool_prefix}$2"
   fi
+else
+  GFORTRAN_FOR_TARGET="$ac_cv_prog_GFORTRAN_FOR_TARGET"
 fi
 
 
@@ -8518,7 +8528,7 @@ echo "${ECHO_T}no" >&6
   elif test $build != $host && test $have_gcc_for_target = yes; then
     AR_FOR_TARGET=`$GCC_FOR_TARGET --print-prog-name=ar`
     test $AR_FOR_TARGET=ar && AR_FOR_TARGET=
-    ac_cv_path_AR_FOR_TARGET=$AR_FOR_TARGET
+    test -n "$AR_FOR_TARGET" && ac_cv_path_AR_FOR_TARGET=$AR_FOR_TARGET
   fi
 fi
 if test -z "$ac_cv_path_AR_FOR_TARGET" && test -n "$gcc_cv_tool_dirs"; then
@@ -8714,6 +8724,8 @@ if test -z "$ac_cv_prog_AR_FOR_TARGET" ; then
   else
     AR_FOR_TARGET="${ncn_target_tool_prefix}$2"
   fi
+else
+  AR_FOR_TARGET="$ac_cv_prog_AR_FOR_TARGET"
 fi
 
 else
@@ -8739,7 +8751,7 @@ echo "${ECHO_T}no" >&6
   elif test $build != $host && test $have_gcc_for_target = yes; then
     AS_FOR_TARGET=`$GCC_FOR_TARGET --print-prog-name=as`
     test $AS_FOR_TARGET=as && AS_FOR_TARGET=
-    ac_cv_path_AS_FOR_TARGET=$AS_FOR_TARGET
+    test -n "$AS_FOR_TARGET" && ac_cv_path_AS_FOR_TARGET=$AS_FOR_TARGET
   fi
 fi
 if test -z "$ac_cv_path_AS_FOR_TARGET" && test -n "$gcc_cv_tool_dirs"; then
@@ -8935,6 +8947,8 @@ if test -z "$ac_cv_prog_AS_FOR_TARGET" ; then
   else
     AS_FOR_TARGET="${ncn_target_tool_prefix}$2"
   fi
+else
+  AS_FOR_TARGET="$ac_cv_prog_AS_FOR_TARGET"
 fi
 
 else
@@ -8960,7 +8974,7 @@ echo "${ECHO_T}no" >&6
   elif test $build != $host && test $have_gcc_for_target = yes; then
     DLLTOOL_FOR_TARGET=`$GCC_FOR_TARGET --print-prog-name=dlltool`
     test $DLLTOOL_FOR_TARGET=dlltool && DLLTOOL_FOR_TARGET=
-    ac_cv_path_DLLTOOL_FOR_TARGET=$DLLTOOL_FOR_TARGET
+    test -n "$DLLTOOL_FOR_TARGET" && ac_cv_path_DLLTOOL_FOR_TARGET=$DLLTOOL_FOR_TARGET
   fi
 fi
 if test -z "$ac_cv_path_DLLTOOL_FOR_TARGET" && test -n "$gcc_cv_tool_dirs"; then
@@ -9156,6 +9170,8 @@ if test -z "$ac_cv_prog_DLLTOOL_FOR_TARGET" ; then
   else
     DLLTOOL_FOR_TARGET="${ncn_target_tool_prefix}$2"
   fi
+else
+  DLLTOOL_FOR_TARGET="$ac_cv_prog_DLLTOOL_FOR_TARGET"
 fi
 
 else
@@ -9181,7 +9197,7 @@ echo "${ECHO_T}no" >&6
   elif test $build != $host && test $have_gcc_for_target = yes; then
     LD_FOR_TARGET=`$GCC_FOR_TARGET --print-prog-name=ld`
     test $LD_FOR_TARGET=ld && LD_FOR_TARGET=
-    ac_cv_path_LD_FOR_TARGET=$LD_FOR_TARGET
+    test -n "$LD_FOR_TARGET" && ac_cv_path_LD_FOR_TARGET=$LD_FOR_TARGET
   fi
 fi
 if test -z "$ac_cv_path_LD_FOR_TARGET" && test -n "$gcc_cv_tool_dirs"; then
@@ -9377,6 +9393,8 @@ if test -z "$ac_cv_prog_LD_FOR_TARGET" ; then
   else
     LD_FOR_TARGET="${ncn_target_tool_prefix}$2"
   fi
+else
+  LD_FOR_TARGET="$ac_cv_prog_LD_FOR_TARGET"
 fi
 
 else
@@ -9402,7 +9420,7 @@ echo "${ECHO_T}no" >&6
   elif test $build != $host && test $have_gcc_for_target = yes; then
     LIPO_FOR_TARGET=`$GCC_FOR_TARGET --print-prog-name=lipo`
     test $LIPO_FOR_TARGET=lipo && LIPO_FOR_TARGET=
-    ac_cv_path_LIPO_FOR_TARGET=$LIPO_FOR_TARGET
+    test -n "$LIPO_FOR_TARGET" && ac_cv_path_LIPO_FOR_TARGET=$LIPO_FOR_TARGET
   fi
 fi
 if test -z "$ac_cv_path_LIPO_FOR_TARGET" && test -n "$gcc_cv_tool_dirs"; then
@@ -9598,6 +9616,8 @@ if test -z "$ac_cv_prog_LIPO_FOR_TARGET" ; then
   else
     LIPO_FOR_TARGET="${ncn_target_tool_prefix}$2"
   fi
+else
+  LIPO_FOR_TARGET="$ac_cv_prog_LIPO_FOR_TARGET"
 fi
 
 else
@@ -9623,7 +9643,7 @@ echo "${ECHO_T}no" >&6
   elif test $build != $host && test $have_gcc_for_target = yes; then
     NM_FOR_TARGET=`$GCC_FOR_TARGET --print-prog-name=nm`
     test $NM_FOR_TARGET=nm && NM_FOR_TARGET=
-    ac_cv_path_NM_FOR_TARGET=$NM_FOR_TARGET
+    test -n "$NM_FOR_TARGET" && ac_cv_path_NM_FOR_TARGET=$NM_FOR_TARGET
   fi
 fi
 if test -z "$ac_cv_path_NM_FOR_TARGET" && test -n "$gcc_cv_tool_dirs"; then
@@ -9819,6 +9839,8 @@ if test -z "$ac_cv_prog_NM_FOR_TARGET" ; then
   else
     NM_FOR_TARGET="${ncn_target_tool_prefix}$2"
   fi
+else
+  NM_FOR_TARGET="$ac_cv_prog_NM_FOR_TARGET"
 fi
 
 else
@@ -9844,7 +9866,7 @@ echo "${ECHO_T}no" >&6
   elif test $build != $host && test $have_gcc_for_target = yes; then
     OBJDUMP_FOR_TARGET=`$GCC_FOR_TARGET --print-prog-name=objdump`
     test $OBJDUMP_FOR_TARGET=objdump && OBJDUMP_FOR_TARGET=
-    ac_cv_path_OBJDUMP_FOR_TARGET=$OBJDUMP_FOR_TARGET
+    test -n "$OBJDUMP_FOR_TARGET" && ac_cv_path_OBJDUMP_FOR_TARGET=$OBJDUMP_FOR_TARGET
   fi
 fi
 if test -z "$ac_cv_path_OBJDUMP_FOR_TARGET" && test -n "$gcc_cv_tool_dirs"; then
@@ -10040,6 +10062,8 @@ if test -z "$ac_cv_prog_OBJDUMP_FOR_TARGET" ; then
   else
     OBJDUMP_FOR_TARGET="${ncn_target_tool_prefix}$2"
   fi
+else
+  OBJDUMP_FOR_TARGET="$ac_cv_prog_OBJDUMP_FOR_TARGET"
 fi
 
 else
@@ -10065,7 +10089,7 @@ echo "${ECHO_T}no" >&6
   elif test $build != $host && test $have_gcc_for_target = yes; then
     RANLIB_FOR_TARGET=`$GCC_FOR_TARGET --print-prog-name=ranlib`
     test $RANLIB_FOR_TARGET=ranlib && RANLIB_FOR_TARGET=
-    ac_cv_path_RANLIB_FOR_TARGET=$RANLIB_FOR_TARGET
+    test -n "$RANLIB_FOR_TARGET" && ac_cv_path_RANLIB_FOR_TARGET=$RANLIB_FOR_TARGET
   fi
 fi
 if test -z "$ac_cv_path_RANLIB_FOR_TARGET" && test -n "$gcc_cv_tool_dirs"; then
@@ -10261,6 +10285,8 @@ if test -z "$ac_cv_prog_RANLIB_FOR_TARGET" ; then
   else
     RANLIB_FOR_TARGET="${ncn_target_tool_prefix}$2"
   fi
+else
+  RANLIB_FOR_TARGET="$ac_cv_prog_RANLIB_FOR_TARGET"
 fi
 
 else
@@ -10286,7 +10312,7 @@ echo "${ECHO_T}no" >&6
   elif test $build != $host && test $have_gcc_for_target = yes; then
     STRIP_FOR_TARGET=`$GCC_FOR_TARGET --print-prog-name=strip`
     test $STRIP_FOR_TARGET=strip && STRIP_FOR_TARGET=
-    ac_cv_path_STRIP_FOR_TARGET=$STRIP_FOR_TARGET
+    test -n "$STRIP_FOR_TARGET" && ac_cv_path_STRIP_FOR_TARGET=$STRIP_FOR_TARGET
   fi
 fi
 if test -z "$ac_cv_path_STRIP_FOR_TARGET" && test -n "$gcc_cv_tool_dirs"; then
@@ -10482,6 +10508,8 @@ if test -z "$ac_cv_prog_STRIP_FOR_TARGET" ; then
   else
     STRIP_FOR_TARGET="${ncn_target_tool_prefix}$2"
   fi
+else
+  STRIP_FOR_TARGET="$ac_cv_prog_STRIP_FOR_TARGET"
 fi
 
 else
@@ -10507,7 +10535,7 @@ echo "${ECHO_T}no" >&6
   elif test $build != $host && test $have_gcc_for_target = yes; then
     WINDRES_FOR_TARGET=`$GCC_FOR_TARGET --print-prog-name=windres`
     test $WINDRES_FOR_TARGET=windres && WINDRES_FOR_TARGET=
-    ac_cv_path_WINDRES_FOR_TARGET=$WINDRES_FOR_TARGET
+    test -n "$WINDRES_FOR_TARGET" && ac_cv_path_WINDRES_FOR_TARGET=$WINDRES_FOR_TARGET
   fi
 fi
 if test -z "$ac_cv_path_WINDRES_FOR_TARGET" && test -n "$gcc_cv_tool_dirs"; then
@@ -10703,6 +10731,8 @@ if test -z "$ac_cv_prog_WINDRES_FOR_TARGET" ; then
   else
     WINDRES_FOR_TARGET="${ncn_target_tool_prefix}$2"
   fi
+else
+  WINDRES_FOR_TARGET="$ac_cv_prog_WINDRES_FOR_TARGET"
 fi
 
 else