README: Update to reflect reality.

2001-06-11  Phil Edwards  <pme@sources.redhat.com>

	* README:  Update to reflect reality.
	* acinclude.m4:  Update descriptions, fix typos.  Comment changes only.
	* configure.in:  Make certain target_alias is set and subst'd for 2.50.
	* aclocal.m4:  Regenerate.
	* configure:  Regenerate (with 2.13).

From-SVN: r43203

libstdc++-v3/ChangeLog

+2001-06-11  Phil Edwards  <pme@sources.redhat.com>
+
+	* README:  Update to reflect reality.
+	* acinclude.m4:  Update descriptions, fix typos.  Comment changes only.
+	* configure.in:  Make certain target_alias is set and subst'd for 2.50.
+	* aclocal.m4:  Regenerate.
+	* configure:  Regenerate (with 2.13).
+
 2001-06-11  Benjamin Kosnik  <bkoz@redhat.com>
 
 	libstdc++/3114

libstdc++-v3/README

@@ -62,10 +62,11 @@ It has subdirectories:
      Test programs are here, and may be used to begin to exercise the 
      library.  Support for "make check" and "make check-install" is
      complete, and runs through all the subdirectories here when this
-     command is issued from the build directory. Please note that
-     "make check" calls the script mkcheck, which requires bash, and which
-     may need the paths to bash adjusted to work properly, as /bin/bash is
-     assumed.
+     command is issued from the build directory.  Please note that
+     "make check" requires DejaGNU 1.4 or later to be installed.  Please
+     note that "make check-script" calls the script mkcheck, which
+     requires bash, and which may need the paths to bash adjusted to
+     work properly, as /bin/bash is assumed.
 
 Other subdirectories contain variant versions of certain files
 that are meant to be copied or linked by the configure script.

libstdc++-v3/acinclude.m4

 dnl
 dnl Initialize configure bits.
 dnl
-dnl Define OPTLEVEL='-O2' if new inlining code present.
-dnl
 dnl GLIBCPP_CONFIGURE
 AC_DEFUN(GLIBCPP_CONFIGURE, [
   dnl Default to --enable-multilib
@@ -172,9 +170,9 @@ fi
 
 
 dnl
-dnl Test for newer compiler features, or features that are present in newer
-dnl compiler version but not older compiler versions should be placed
-dnl here.
+dnl Tests for newer compiler features, or features that are present in newer
+dnl compiler versions but not older compiler versions still in use, should
+dnl be placed here.
 dnl
 dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the
 dnl new inlining code or the new system_header pragma will die on -Werror.
@@ -186,7 +184,7 @@ dnl
 dnl GLIBCPP_CHECK_COMPILER_FEATURES
 AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [
   # All these tests are for C++; save the language and the compiler flags.
-  # The CXXFLAGS thing is suspicious, but based on similar bits 
+  # The CXXFLAGS thing is suspicious, but based on similar bits previously
   # found in GLIBCPP_CONFIGURE.
   AC_LANG_SAVE
   AC_LANG_CPLUSPLUS
@@ -362,7 +360,7 @@ AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [
 dnl
 dnl Check to see if the (math function) argument passed is
 dnl declared when using the c++ compiler
-dnl ASSUMES argument is a math function with ONE parameter
+dnl ASSUMES argument is a math function with TWO parameters
 dnl
 dnl GLIBCPP_CHECK_MATH_DECL_2
 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [
@@ -408,7 +406,7 @@ AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [
 dnl
 dnl Check to see if the (math function) argument passed is
 dnl declared when using the c++ compiler
-dnl ASSUMES argument is a math function with ONE parameter
+dnl ASSUMES argument is a math function with THREE parameters
 dnl
 dnl GLIBCPP_CHECK_MATH_DECL_3
 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [

libstdc++-v3/aclocal.m4

@@ -13,8 +13,6 @@ dnl PARTICULAR PURPOSE.
 dnl
 dnl Initialize configure bits.
 dnl
-dnl Define OPTLEVEL='-O2' if new inlining code present.
-dnl
 dnl GLIBCPP_CONFIGURE
 AC_DEFUN(GLIBCPP_CONFIGURE, [
   dnl Default to --enable-multilib
@@ -184,9 +182,9 @@ fi
 
 
 dnl
-dnl Test for newer compiler features, or features that are present in newer
-dnl compiler version but not older compiler versions should be placed
-dnl here.
+dnl Tests for newer compiler features, or features that are present in newer
+dnl compiler versions but not older compiler versions still in use, should
+dnl be placed here.
 dnl
 dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the
 dnl new inlining code or the new system_header pragma will die on -Werror.
@@ -198,7 +196,7 @@ dnl
 dnl GLIBCPP_CHECK_COMPILER_FEATURES
 AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [
   # All these tests are for C++; save the language and the compiler flags.
-  # The CXXFLAGS thing is suspicious, but based on similar bits 
+  # The CXXFLAGS thing is suspicious, but based on similar bits previously
   # found in GLIBCPP_CONFIGURE.
   AC_LANG_SAVE
   AC_LANG_CPLUSPLUS
@@ -374,7 +372,7 @@ AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [
 dnl
 dnl Check to see if the (math function) argument passed is
 dnl declared when using the c++ compiler
-dnl ASSUMES argument is a math function with ONE parameter
+dnl ASSUMES argument is a math function with TWO parameters
 dnl
 dnl GLIBCPP_CHECK_MATH_DECL_2
 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [
@@ -420,7 +418,7 @@ AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [
 dnl
 dnl Check to see if the (math function) argument passed is
 dnl declared when using the c++ compiler
-dnl ASSUMES argument is a math function with ONE parameter
+dnl ASSUMES argument is a math function with THREE parameters
 dnl
 dnl GLIBCPP_CHECK_MATH_DECL_3
 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [

libstdc++-v3/configure.in

@@ -33,7 +33,11 @@ dnl This is here just to satisfy automake.
 ifelse(not,equal,[AC_CONFIG_AUX_DIR(..)])
 
 # Gets and sets build, host, target, *_vendor, *_cpu, *_os, etc.
+# AC 2.50 sets target_alias iff the user specified --target, but we use it
+# everywhere, so we set it here just to be sure.
 AC_CANONICAL_SYSTEM
+target_alias=${target_alias-$target}
+AC_SUBST(target_alias)
 
 # We use these options to decide which functions to include.
 AC_ARG_WITH(target-subdir,