re PR libstdc++/52689 (static linking with libstdc++ fails)

2012-04-25  Benjamin Kosnik  <bkoz@redhat.com>

	PR libstdc++/52689
	* testsuite/17_intro/static.cc: Fix.
	* testsuite/lib/dg-options.exp (dg-require-static-libstdcxx): New.

From-SVN: r186845

libstdc++-v3/ChangeLog

+2012-04-25  Benjamin Kosnik  <bkoz@redhat.com>
+
+	PR libstdc++/52689
+	* testsuite/17_intro/static.cc: Fix.
+	* testsuite/lib/dg-options.exp (dg-require-static-libstdcxx): New.
+	* testsuite/lib/libstdc++.exp (check_v3_target_static_libstdcxx): New.
+
 2012-04-25  Jonathan Wakely  <jwakely.gcc@gmail.com>
 
 	* include/std/scoped_allocator (scoped_allocator::__outermost): Do

libstdc++-v3/testsuite/17_intro/static.cc

 // { dg-do link }
-// { dg-require-effective-target static }
-// { dg-options "-static -std=gnu++11" }
+// { dg-require-static-libstdcxx }
+// { dg-options "-static-libstdc++ -std=gnu++11" }
 
 // Copyright (C) 2012 Free Software Foundation, Inc.
 //
@@ -25,7 +25,7 @@
 
 int main()
 {
-  std::locale c = std::locale::global();
+  std::locale c __attribute__((unused)) = std::locale::classic();
   std::cout << "i am old-skool\n";
   return 0;
 }

libstdc++-v3/testsuite/lib/dg-options.exp

@@ -197,6 +197,15 @@ proc dg-require-nprocs { args } {
     return
 }
 
+proc dg-require-static-libstdcxx { args } {
+    if { ![ check_v3_target_static_libstdcxx ] } {
+        upvar dg-do-what dg-do-what
+        set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
+        return
+    }
+    return
+}
+
 proc add_options_for_no_pch { flags } {
     # This forces any generated and possibly included PCH to be invalid.
     return "-D__GLIBCXX__=99999999"

libstdc++-v3/testsuite/lib/libstdc++.exp

@@ -1693,5 +1693,49 @@ proc check_v3_target_nprocs { } {
     return $et_nprocs
 }
 
+proc check_v3_target_static_libstdcxx { } {
+    global cxxflags
+    global DEFAULT_CXXFLAGS
+    global et_static_libstdcxx
+
+    global tool
+
+    if [info exists et_static_libstdcxx] {
+	verbose "check_v3_target_static_libstdcxx: using cached result" 2
+    } else {
+	set et_static_libstdcxx 0
+
+	# Set up and link a C++0x test program that depends
+	# on static linking
+	set src static-maybe[pid].cc
+
+	set f [open $src "w"]
+        puts $f "#include <iostream>"
+	puts $f "int main() {"
+	puts $f "int i(415);"
+	puts $f "std::cout<< i << std::endl;"
+	puts $f "return 0; }"
+	puts $f ""
+	close $f
+
+	set cxxflags_saved $cxxflags
+	set cxxflags "$cxxflags $DEFAULT_CXXFLAGS -static-libstdc++"
+
+	set lines [v3_target_compile $src /dev/null executable ""]
+	set cxxflags $cxxflags_saved
+	file delete $src
+
+	if [string match "" $lines] {
+	    # No error message, link succeeded.
+	    set et_static_libstdcxx 1
+	} else {
+	    verbose "check_v3_target_static_libstdcxx: compilation failed" 2
+	}
+    }
+    verbose "check_v3_target_static_libstdcxx: $et_static_libstdcxx" 2
+    return $et_static_libstdcxx
+}
+
+
 
 set additional_prunes ""