X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=libstdc%2B%2B-v3%2Fconfigure.in;h=45099b049409082c7ec7f461f37453243ad92359;hb=3461a998f83f6aba603802fcc1031a5898e9956f;hp=f9b1cf8f5740a9f95d6ecc96b7dec382f839690d;hpb=c3f3e8918fd3633fa2b5bf0dc6437540b6bbae73;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/libstdc++-v3/configure.in b/libstdc++-v3/configure.in
index f9b1cf8f574..45099b04940 100644
--- a/libstdc++-v3/configure.in
+++ b/libstdc++-v3/configure.in
@@ -36,6 +36,11 @@ AC_CANONICAL_SYSTEM
 target_alias=${target_alias-$target}
 AC_SUBST(target_alias)
 
+# Will set LN_S to either 'ln -s' or 'ln'.  With autoconf 2.50+, can also
+# be 'cp -p' if linking isn't available.
+#ac_cv_prog_LN_S='cp -p'
+AC_PROG_LN_S
+
 # We use these options to decide which functions to include.
 AC_ARG_WITH(target-subdir,
 [  --with-target-subdir=SUBDIR
@@ -53,8 +58,6 @@ AC_SUBST(enable_shared)
 AC_SUBST(enable_static)
 GLIBCPP_CHECK_GNU_MAKE
 
-
-
 AM_CONFIG_HEADER(config.h)
 
 # Check for c++ or library specific bits that don't require linking.
@@ -72,22 +75,21 @@ GLIBCPP_ENABLE_THREADS
 GLIBCPP_ENABLE_CXX_FLAGS([none])
 GLIBCPP_ENABLE_SJLJ_EXCEPTIONS
 
-if test -n "$with_cross_host"; then
+if test -n "$with_cross_host" || test x"$build" != x"$host"; then
 
-  # We are being configured with a cross compiler.  AC_REPLACE_FUNCS
-  # may not work correctly, because the compiler may not be able to
-  # link executables.
-  xcompiling=1
-  NATIVE=no
+  # We are being configured with some form of cross compiler.
+  # mknumeric_limits may not work correctly, either because the
+  # compiler may not run on this machine, may not be able to link
+  # executables, or may produce executables we can't run on this
+  # machine.
+  GLIBCPP_IS_CROSS_COMPILING=1
 
   # If Canadian cross, then don't pick up tools from the build
   # directory.
-  if test x"$build" != x"$with_cross_host" && x"$build" != x"$target"; then
+  if test -n "$with_cross_host" && test x"$build" != x"$with_cross_host"; then
     CANADIAN=yes
-    NULL_TARGET=yes
   else
     CANADIAN=no
-    NULL_TARGET=no
   fi
 
   case "$target_alias" in
@@ -197,10 +199,8 @@ else
   # We are being configured natively. We can do more elaborate tests
   # that include AC_TRY_COMPILE now, as the linker is assumed to be
   # working.
-  xcompiling=0
-  NATIVE=yes
+  GLIBCPP_IS_CROSS_COMPILING=0
   CANADIAN=no
-  NULL_TARGET=no
 
   # Check for available headers.
   AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h machine/endian.h \
@@ -222,17 +222,14 @@ else
   AC_FUNC_MMAP
 fi
 
-# Now that ctype is determined for all possible targets, we can do this...
-AC_LINK_FILES($os_include_dir/bits/ctype_base.h, \
-include/bits/ctype_base.h)
-AC_LINK_FILES($os_include_dir/bits/ctype_inline.h, \
-include/bits/ctype_inline.h)
-AC_LINK_FILES($os_include_dir/bits/ctype_noninline.h, \
-include/bits/ctype_noninline.h)
-AC_LINK_FILES($ATOMICITYH/bits/atomicity.h, include/bits/atomicity.h)
-
-AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
-AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes)
+# Propagate the target-specific source directories through the build chain.
+OS_INC_SRCDIR=$os_include_dir/bits
+ATOMICITY_INC_SRCDIR=$ATOMICITYH/bits
+AC_SUBST(OS_INC_SRCDIR)
+AC_SUBST(ATOMICITY_INC_SRCDIR)
+
+# Set up cross-compile flags
+AC_SUBST(GLIBCPP_IS_CROSS_COMPILING)
 AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
  
 AC_CACHE_SAVE
@@ -244,9 +241,6 @@ else
   multilib_arg=
 fi
 
-
-# Generate the various Makefiles, include files, and scripts.
-
 # Needed so that g++ can find the correct include subdir automatically.
 INTERFACE=v3
 
@@ -265,20 +259,16 @@ else
 fi
 AC_SUBST(LIBSUPCXX_PICFLAGS)
 
-# This should be done by mkincludedir, but hack around it now.
-blddir=`pwd`
-echo "checking for $blddir/include"
-
-if test ! -d "$blddir/include"; then
-  mkdir "$blddir/include"
-fi
-
+# Generate the various Makefiles, include files, and scripts.
 # NB: Multilibs need MULTISUBDIR defined correctly in src/Makefile.am
 # and libsupc++/Makefile.am so that multilib installs will end up
 # installed in the correct place. To work around this not being passed
 # down from config-ml.in -> top_srcdir/Makefile.am ->
 # top_srcdir/{src,libsupc++}/Makefile.am, manually append it here.
-AC_OUTPUT(Makefile src/Makefile libmath/Makefile libio/Makefile libsupc++/Makefile testsuite/Makefile mkcheck testsuite_flags,
+AC_OUTPUT(Makefile \
+    include/Makefile src/Makefile \
+    libmath/Makefile libio/Makefile libsupc++/Makefile \
+    testsuite/Makefile mkcheck testsuite_flags,
 [if test -n "$CONFIG_FILES"; then
   ac_file=Makefile . ${glibcpp_basedir}/../config-ml.in
   grep '^MULTISUBDIR =' Makefile >> src/Makefile
@@ -299,22 +289,6 @@ CXX="${CXX}"
 )
 
 
-# Generate bits/c++config.h
-# NB: This must be the first generated file as others include it. . .
-$srcdir/mkc++config $blddir $srcdir
-
-# Generate bits/std_limits.h and src/limitsMEMBERS.cc
-if test ! -f stamp-limits; then
-  $srcdir/mknumeric_limits $blddir $srcdir $xcompiling
-  if test ! -f include/bits/std_limits.h; then
-    echo "mknumeric_limits failed to execute properly: exiting"
-    exit 1
-  else
-    touch stamp-limits 
-  fi
-fi
-
-
 # Sanity checking & User-visible messages.
 # Checks down here, otherwise they get scrolled off before
 # the user will notice.