Makefile.in (cpp_install_dir, [...]): New variables.

�
        * Makefile.in (cpp_install_dir, INSTALL_CPP, UNINSTALL_CPP): New
        variables.
        (install-cpp, uninstall-cpp): New targets.
        (install-normal): Depend on $(INSTALL_CPP).
        (uninstall): Depend on $(UNINSTALL_CPP).
        * configure.in (cpp_install_dir): New, substitute.
        (tmake_file): Added t-install-cpp for --enable-cpp.
        * configure: Rebuilt.
        * cpp.sh: New cpp script.
        * config/t-install-cpp: New target fragment.

From-SVN: r25530

gcc/config/t-install-cpp

+# Handle cpp installation.
+INSTALL_CPP=install-cpp
+UNINSTALL_CPP=uninstall-cpp

gcc/configure.in

@@ -415,6 +415,9 @@ host_xmake_file=
 host_truncate_target=
 host_exeext=
 
+# It is relative to $prefix.
+cpp_install_dir=
+
 # Decode the host machine, then the target machine.
 # For the host machine, we save the xm_file variable as host_xm_file;
 # then we decode the target machine and forget everything else
@@ -3543,6 +3546,12 @@ then
   esac
 fi
 
+# Handle cpp installation.
+if [[ x$enable_cpp != x ]]
+then
+  tmake_file="$tmake_file t-install-cpp"
+fi
+
 # Say what files are being used for the output code and MD file.
 echo "Using \`$srcdir/config/$out_file' to output insns."
 echo "Using \`$srcdir/config/$md_file' as machine description file."
@@ -4293,6 +4302,8 @@ AC_SUBST(cc_set_by_configure)
 AC_SUBST(stage_prefix_set_by_configure)
 AC_SUBST(install)
 AC_SUBST(symbolic_link)
+AC_SUBST(cpp_install_dir)
+
 
 AC_SUBST_FILE(target_overrides)
 AC_SUBST_FILE(host_overrides)
@@ -4402,4 +4413,5 @@ host_overrides='${host_overrides}'
 cross_defines='${cross_defines}'
 cross_overrides='${cross_overrides}'
 build_overrides='${build_overrides}'
+cpp_install_dir='${cpp_install_dir}'
 ])

gcc/cpp.sh

+#! /bin/sh
+exec `gcc -print-prog-name=cpp` ${1+"$@"}