[libstdc++] Fix iconv testsuite problems

[Phil Edwards]

This is the same thing as Eric's change to gcc/Makefile.in.  I don't have
access to a system which needs libiconv.a, but on i686-linux, the testsuite
passes with none of the Expect errors we've been seeing.

Applied to trunk, queued for 3.4.1.


2004-03-19  Phil Edwards  <phil@codesourcery.com>

	* acinclude.m4 (GLIBCXX_CHECK_WCHAR_T_SUPPORT):  Set LIBICONV,
	not libiconv.  SUBST this variable as well.
	* testsuite/Makefile.am (site.exp):  New target, based on that
	created by automake.  Also set libiconv.

	* configure, Makefile.in, include/Makefile.in, libmath/Makefile.in,
	libsupc++/Makefile.in, po/Makefile.in, src/Makefile.in,
	testsuite/Makefile.in:  Regenerate.


Index: acinclude.m4
===================================================================
RCS file: /cvs/gcc/gcc/libstdc++-v3/acinclude.m4,v
retrieving revision 1.285
diff -u -p -r1.285 acinclude.m4
--- acinclude.m4	17 Mar 2004 08:50:31 -0000	1.285
+++ acinclude.m4	19 Mar 2004 11:26:47 -0000
@@ -336,6 +336,8 @@ dnl
 dnl Defines:
 dnl  HAVE_MBSTATE_T if mbstate_t is not in wchar.h
 dnl  _GLIBCXX_USE_WCHAR_T if all the bits are found.
+dnl Substs:
+dnl  LIBICONV to a -l string containing the iconv library, if needed.
 dnl
 AC_DEFUN([GLIBCXX_CHECK_WCHAR_T_SUPPORT], [
   # Test wchar.h for mbstate_t, which is needed for char_traits and
@@ -412,9 +414,10 @@ AC_DEFUN([GLIBCXX_CHECK_WCHAR_T_SUPPORT]
     AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no)
 
     # Check for existence of libiconv.a providing XPG2 wchar_t support.
-    AC_CHECK_LIB(iconv, iconv, libiconv="-liconv")
+    AC_CHECK_LIB(iconv, iconv, LIBICONV="-liconv")
     ac_save_LIBS="$LIBS"
-    LIBS="$LIBS $libiconv"
+    LIBS="$LIBS $LIBICONV"
+    AC_SUBST(LIBICONV)
 
     AC_CHECK_FUNCS([iconv_open iconv_close iconv nl_langinfo],
     [ac_XPG2funcs=yes], [ac_XPG2funcs=no])
Index: testsuite/Makefile.am
===================================================================
RCS file: /cvs/gcc/gcc/libstdc++-v3/testsuite/Makefile.am,v
retrieving revision 1.34
diff -u -p -r1.34 Makefile.am
--- testsuite/Makefile.am	29 Feb 2004 12:57:33 -0000	1.34
+++ testsuite/Makefile.am	19 Mar 2004 11:26:54 -0000
@@ -69,6 +69,32 @@ else
 stamp_wchar:
 endif
 
+# We need more things in site.exp, but automake completely controls the
+# creation of that file; there's no way to append to it without messing up
+# the dependancy chains.  So we overrule automake.  This rule is exactly
+# what it would have generated, plus our own additions.
+site.exp: Makefile
+	@echo 'Making a new site.exp file...'
+	@echo '## these variables are automatically generated by make ##' >site.tmp
+	@echo '# Do not edit here.  If you wish to override these values' >>site.tmp
+	@echo '# edit the last section' >>site.tmp
+	@echo 'set srcdir $(srcdir)' >>site.tmp
+	@echo "set objdir `pwd`" >>site.tmp
+	@echo 'set build_alias "$(build_alias)"' >>site.tmp
+	@echo 'set build_triplet $(build_triplet)' >>site.tmp
+	@echo 'set host_alias "$(host_alias)"' >>site.tmp
+	@echo 'set host_triplet $(host_triplet)' >>site.tmp
+	@echo 'set target_alias "$(target_alias)"' >>site.tmp
+	@echo 'set target_triplet $(target_triplet)' >>site.tmp
+	@echo 'set target_triplet $(target_triplet)' >>site.tmp
+	@echo 'set libiconv "$(LIBICONV)"' >>site.tmp
+	@echo '## All variables above are generated by configure. Do Not Edit ##' >>site.tmp
+	@test ! -f site.exp || \
+	  sed '1,/^## All variables above are.*##/ d' site.exp >> site.tmp
+	@-rm -f site.bak
+	@test ! -f site.exp || mv site.exp site.bak
+	@mv site.tmp site.exp
+
 # This is automatically run after the generated check-DEJAGNU rule.
 check-local: check-abi