libstdc++: Implement C++26 std::text_encoding (P1885R12) [PR113318]

[thirdparty/gcc.git] / libstdc++-v3 / configure

diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index bef2b840a595b6ec3a2c24eb3efb04f6835f62b7..65ce679f1bdd01e51a1b71b1b79f54dc2626dd64 100755 (executable)
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -5529,7 +5529,7 @@ $as_echo "$ac_cv_path_EGREP" >&6; }
   # expandable list at autoconf time; the second provides an expandable list
   # (i.e., shell variable) at configure time.
 
-  SUBDIRS='include libsupc++ src src/c++98 src/c++11 src/c++17 src/c++20 src/c++23 src/filesystem src/libbacktrace src/experimental doc po testsuite python'
+  SUBDIRS='include libsupc++ src src/c++98 src/c++11 src/c++17 src/c++20 src/c++23 src/c++26 src/filesystem src/libbacktrace src/experimental doc po testsuite python'
 
   # These need to be absolute paths, yet at the same time need to
   # canonicalize only relative paths, because then amd will not unmount
@@ -54517,6 +54517,60 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 
+# For std::text_encoding
+
+
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether nl_langinfo_l is defined in <langinfo.h>" >&5
+$as_echo_n "checking whether nl_langinfo_l is defined in <langinfo.h>... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+  #include <locale.h>
+  #include <langinfo.h>
+
+int
+main ()
+{
+
+    locale_t loc = newlocale(LC_ALL_MASK, "", (locale_t)0);
+    const char* enc = nl_langinfo_l(CODESET, loc);
+    freelocale(loc);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_nl_langinfo_l=yes
+else
+  ac_nl_langinfo_l=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_nl_langinfo_l" >&5
+$as_echo "$ac_nl_langinfo_l" >&6; }
+  if test "$ac_nl_langinfo_l" = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define _GLIBCXX_USE_NL_LANGINFO_L 1
+_ACEOF
+
+  fi
+
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
 # Define documentation rules conditionally.
 
 # See if makeinfo has been installed and is modern enough
@@ -55637,7 +55691,7 @@ ac_config_files="$ac_config_files src/libbacktrace/backtrace-supported.h"
 # append it here.  Only modify Makefiles that have just been created.
 #
 # Also, get rid of this simulated-VPATH thing that automake does.
-ac_config_files="$ac_config_files include/Makefile libsupc++/Makefile src/Makefile src/c++98/Makefile src/c++11/Makefile src/c++17/Makefile src/c++20/Makefile src/c++23/Makefile src/filesystem/Makefile src/libbacktrace/Makefile src/experimental/Makefile doc/Makefile po/Makefile testsuite/Makefile python/Makefile"
+ac_config_files="$ac_config_files include/Makefile libsupc++/Makefile src/Makefile src/c++98/Makefile src/c++11/Makefile src/c++17/Makefile src/c++20/Makefile src/c++23/Makefile src/c++26/Makefile src/filesystem/Makefile src/libbacktrace/Makefile src/experimental/Makefile doc/Makefile po/Makefile testsuite/Makefile python/Makefile"
 
 
 ac_config_commands="$ac_config_commands generate-headers"
@@ -56893,6 +56947,7 @@ do
     "src/c++17/Makefile") CONFIG_FILES="$CONFIG_FILES src/c++17/Makefile" ;;
     "src/c++20/Makefile") CONFIG_FILES="$CONFIG_FILES src/c++20/Makefile" ;;
     "src/c++23/Makefile") CONFIG_FILES="$CONFIG_FILES src/c++23/Makefile" ;;
+    "src/c++26/Makefile") CONFIG_FILES="$CONFIG_FILES src/c++26/Makefile" ;;
     "src/filesystem/Makefile") CONFIG_FILES="$CONFIG_FILES src/filesystem/Makefile" ;;
     "src/libbacktrace/Makefile") CONFIG_FILES="$CONFIG_FILES src/libbacktrace/Makefile" ;;
     "src/experimental/Makefile") CONFIG_FILES="$CONFIG_FILES src/experimental/Makefile" ;;
@@ -58395,6 +58450,17 @@ _EOF
  ;;
     "src/c++23/Makefile":F) cat > vpsed$$ << \_EOF
 s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   { ml_norecursion=; unset ml_norecursion;}
+ ;;
+    "src/c++26/Makefile":F) cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
 _EOF
    sed -f vpsed$$ $ac_file > tmp$$
    mv tmp$$ $ac_file