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[pf3gnuchains/gcc-fork.git] / configure.ac
index 7d023c8..289416f 100644 (file)
@@ -200,7 +200,8 @@ target_libraries="target-libgcc \
                target-boehm-gc \
                ${libgcj} \
                target-libobjc \
-               target-libada"
+               target-libada \
+               target-libgo"
 
 # these tools are built using the target libraries, and are intended to
 # run only in the target environment
@@ -323,19 +324,31 @@ case ${with_newlib} in
   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 esac
 
-# Handle --enable-gold.
-#   --enable-gold              Build only gold
-#   --disable-gold [default]   Build only ld
-#   --enable-gold=both         Build both gold and ld, ld is default
-#   --enable-gold=both/ld      Same
-#   --enable-gold=both/gold    Build both gold and ld, gold is default, ld is renamed ld.bfd
-
+# Handle --enable-gold, --enable-ld.
+# --disable-gold [--enable-ld]
+#     Build only ld.  Default option.
+# --enable-gold [--enable-ld]
+#     Build both gold and ld.  Install gold as "ld.gold", install ld
+#     as "ld.bfd" and "ld".
+# --enable-gold=default [--enable-ld]
+#     Build both gold and ld.  Install gold as "ld.gold" and "ld",
+#     install ld as "ld.bfd".
+# --enable-gold[=default] --disable-ld
+#     Build only gold, which is then installed as both "ld.gold" and "ld".
+# --enable-gold --enable-ld=default
+#     Build both gold (installed as "ld.gold") and ld (installed as "ld"
+#     and ld.bfd).
+#     In other words, ld is default
+# --enable-gold=default --enable-ld=default
+#     Error.
+
+default_ld=
 AC_ARG_ENABLE(gold,
-[[  --enable-gold[=ARG]     build gold [ARG={both}[/{gold,ld}]]]],
+[[  --enable-gold[=ARG]     build gold [ARG={default,yes,no}]]],
 ENABLE_GOLD=$enableval,
 ENABLE_GOLD=no)
-  case "${ENABLE_GOLD}" in
-  yes|both|both/gold|both/ld)
+case "${ENABLE_GOLD}" in
+  yes|default)
     # Check for ELF target.
     is_elf=no
     case "${target}" in
@@ -355,14 +368,10 @@ ENABLE_GOLD=no)
       # Check for target supported by gold.
       case "${target}" in
         i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-*)
-         case "${ENABLE_GOLD}" in 
-         both*)
-            configdirs="$configdirs gold"
-           ;;
-         *)
-            configdirs=`echo " ${configdirs} " | sed -e 's/ ld / gold /'`
-           ;;
-         esac
+         configdirs="$configdirs gold"
+         if test x${ENABLE_GOLD} = xdefault; then
+           default_ld=gold
+         fi
          ENABLE_GOLD=yes
           ;;
       esac
@@ -373,7 +382,31 @@ ENABLE_GOLD=no)
   *)
     AC_MSG_ERROR([invalid --enable-gold argument])
     ;;
-  esac
+esac
+
+AC_ARG_ENABLE(ld,
+[[  --enable-ld[=ARG]     build ld [ARG={default,yes,no}]]],
+ENABLE_LD=$enableval,
+ENABLE_LD=yes)
+
+case "${ENABLE_LD}" in
+  default)
+    if test x${default_ld} != x; then
+      AC_MSG_ERROR([either gold or ld can be the default ld])
+    fi
+    ;;
+  yes)
+    ;;
+  no)
+    if test x${ENABLE_GOLD} != xyes; then
+      AC_MSG_WARN([neither ld nor gold are enabled])
+    fi
+    configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
+    ;;
+  *)
+    AC_MSG_ERROR([invalid --enable-ld argument])
+    ;;
+esac
 
 # Configure extra directories which are host specific
 
@@ -450,7 +483,8 @@ yes)
   ;;
 no)
   # Make sure we get it printed in the list of not supported target libs.
-  noconfigdirs="$noconfigdirs ${libgcj}"
+  # Don't disable libffi, though, other languages use it.
+  noconfigdirs="$noconfigdirs `echo ${libgcj} | sed -e 's/target-libffi//'`"
   ;;
 esac
 
@@ -1209,6 +1243,7 @@ if test "${build}" != "${host}" ; then
   CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
   GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
   GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
+  GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
   DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
   LD_FOR_BUILD=${LD_FOR_BUILD-ld}
   NM_FOR_BUILD=${NM_FOR_BUILD-nm}
@@ -1222,6 +1257,7 @@ else
   CXX_FOR_BUILD="\$(CXX)"
   GCJ_FOR_BUILD="\$(GCJ)"
   GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
+  GOC_FOR_BUILD="\$(GOC)"
   DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
   LD_FOR_BUILD="\$(LD)"
   NM_FOR_BUILD="\$(NM)"
@@ -1525,10 +1561,10 @@ AC_ARG_WITH(boot-ldflags,
    poststage1_ldflags=$withval
  fi],
 [poststage1_ldflags=
- # With --enable-build-with-cxx, default to linking libstdc++ and
- # libgcc statically.  But if the user explicitly specified the
- # libraries to use, trust that they are doing what they want.
- if test "$ENABLE_BUILD_WITH_CXX" = "yes" -a "$poststage1_libs" = ""; then
+ # In stages 2 and 3, default to linking libstdc++ and libgcc
+ # statically.  But if the user explicitly specified the libraries to
+ # use, trust that they are doing what they want.
+ if test "$poststage1_libs" = ""; then
    poststage1_ldflags="-static-libstdc++ -static-libgcc"
  fi])
 AC_SUBST(poststage1_ldflags)
@@ -1762,6 +1798,9 @@ if test -d ${srcdir}/gcc; then
   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
   potential_languages=,c,
 
+  enabled_target_libs=
+  disabled_target_libs=
+
   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
     case ${lang_frag} in
       ..) ;;
@@ -1839,17 +1878,20 @@ if test -d ${srcdir}/gcc; then
        case $add_this_lang in
          unsupported)
             # Remove language-dependent dirs.
-            eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
+           disabled_target_libs="$disabled_target_libs $target_libs"
+           noconfigdirs="$noconfigdirs $lang_dirs"
            ;;
          no)
             # Remove language-dependent dirs; still show language as supported.
-            eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
+           disabled_target_libs="$disabled_target_libs $target_libs"
+           noconfigdirs="$noconfigdirs $lang_dirs"
             potential_languages="${potential_languages}${language},"
            ;;
           yes)
            new_enable_languages="${new_enable_languages}${language},"
             potential_languages="${potential_languages}${language},"
            missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
+           enabled_target_libs="$enabled_target_libs $target_libs"
            case "${boot_language}:,$enable_stage1_languages," in
              yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
                # Add to (comma-separated) list of stage 1 languages.
@@ -1867,6 +1909,17 @@ if test -d ${srcdir}/gcc; then
     esac
   done
 
+  # Add target libraries which are only needed for disabled languages
+  # to noconfigdirs.
+  if test -n "$disabled_target_libs"; then
+    for dir in $disabled_target_libs; do
+      case " $enabled_target_libs " in
+      *" ${dir} "*) ;;
+      *) noconfigdirs="$noconfigdirs $dir" ;;
+      esac
+    done
+  fi
+
   AC_ARG_ENABLE(stage1-languages,
 [  --enable-stage1-languages@<:@=all@:>@   choose additional languages to build during
                           stage1.  Mostly useful for compiler development.],
@@ -3052,6 +3105,7 @@ AC_SUBST(CXX_FOR_BUILD)
 AC_SUBST(DLLTOOL_FOR_BUILD)
 AC_SUBST(GCJ_FOR_BUILD)
 AC_SUBST(GFORTRAN_FOR_BUILD)
+AC_SUBST(GOC_FOR_BUILD)
 AC_SUBST(LDFLAGS_FOR_BUILD)
 AC_SUBST(LD_FOR_BUILD)
 AC_SUBST(NM_FOR_BUILD)
@@ -3162,6 +3216,7 @@ NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
+NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
 
 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
@@ -3180,8 +3235,9 @@ RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
+dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
-               [gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `test ! -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags || $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
+               [gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
                c++)
 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
                [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
@@ -3192,12 +3248,14 @@ GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
                [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
                [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
+GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
+               [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
-GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
+GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])