PR middle-end/26977

[pf3gnuchains/gcc-fork.git] / configure.in

diff --git a/configure.in b/configure.in
index eddb5d8..da7c63f 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -148,6 +148,7 @@ target_libraries="target-libiberty \
                target-libstdc++-v3 \
                target-libmudflap \
                target-libssp \
+               target-libgcc-math \
                target-libgfortran \
                ${libgcj} \
                target-libobjc \
@@ -304,7 +305,6 @@ AC_ARG_ENABLE(libada,
 ENABLE_LIBADA=$enableval,
 ENABLE_LIBADA=yes)
 if test "${ENABLE_LIBADA}" != "yes" ; then
-  noconfigdirs="$noconfigdirs target-libada"
   noconfigdirs="$noconfigdirs gnattools"
 fi
 
@@ -312,9 +312,18 @@ AC_ARG_ENABLE(libssp,
 [  --enable-libssp        Builds libssp directory],
 ENABLE_LIBSSP=$enableval,
 ENABLE_LIBSSP=yes)
-if test "${ENABLE_LIBSSP}" != "yes" ; then
-  noconfigdirs="$noconfigdirs target-libssp"
-fi
+
+# Set the default so we build libgcc-math for ix86 and x86_64
+AC_ARG_ENABLE(libgcc-math,
+[  --enable-libgcc-math   Builds libgcc-math directory],,
+[
+case "${target}" in
+  i?86-* | x86_64-* )
+    enable_libgcc_math=yes ;;
+  *)
+    enable_libgcc_math=no ;;
+esac
+])
 
 # Save it here so that, even in case of --enable-libgcj, if the Java
 # front-end isn't enabled, we still get libgcj disabled.
@@ -333,14 +342,8 @@ no)
 esac
 
 
-# Allow --disable-libmudflap to exclude target-libmudflap
-case $enable_libmudflap in
-yes)
-    ;;
-no)
-    noconfigdirs="$noconfigdirs target-libmudflap"
-    ;;
-"")
+# Disable libmudflap on some systems.
+if test x$enable_libmudflap = x ; then
     case "${target}" in
     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
         # Enable libmudflap by default in GNU and friends.
@@ -353,16 +356,10 @@ no)
        noconfigdirs="$noconfigdirs target-libmudflap"
        ;;
     esac
-esac
+fi
 
-# Allow --disable-libgomp to exclude target-libgomp
-case $enable_libgomp in
-yes)
-    ;;
-no)
-    noconfigdirs="$noconfigdirs target-libgomp"
-    ;;
-"")
+# Disable libgomp on non POSIX hosted systems.
+if test x$enable_libgomp = x ; then
     # Enable libgomp by default on hosted POSIX systems.
     case "${target}" in
     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
@@ -371,13 +368,13 @@ no)
        ;;
     *-*-solaris2* | *-*-sysv4* | *-*-irix* | *-*-osf* | *-*-hpux*)
        ;;
-    *-*-darwin*)
+    *-*-darwin* | *-*-aix*)
        ;;
     *)
        noconfigdirs="$noconfigdirs target-libgomp"
        ;;
     esac
-esac
+fi
 
 
 case "${target}" in
@@ -681,6 +678,9 @@ case "${target}" in
   i[[3456789]]86-*-beos*)
     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
     ;;
+  i[[3456789]]86-*-rdos*)
+    noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
+    ;;
   m32r-*-*)
     noconfigdirs="$noconfigdirs ${libgcj}"
     ;;
@@ -1041,8 +1041,6 @@ if test "${build}" != "${host}" ; then
   CXX=${CXX-${host_alias}-c++}
   CXXFLAGS=${CXXFLAGS-"-g -O2"}
   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
-  BUILD_PREFIX=${build_alias}-
-  BUILD_PREFIX_1=${build_alias}-
 
 else
   # Set reasonable default values for some tools even if not Canadian.
@@ -1054,9 +1052,6 @@ else
   # This is all going to change when we autoconfiscate...
 
   CC_FOR_BUILD="\$(CC)"
-  BUILD_PREFIX=
-  BUILD_PREFIX_1=loser-
-
   AC_PROG_CC
 
   # We must set the default linker to the linker used by gcc for the correct
@@ -1323,6 +1318,14 @@ Recognised languages are: ${potential_languages}])
   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
 fi
 
+# Handle --disable-<component> generically.
+for dir in $configdirs $build_configdirs $target_configdirs ; do
+  dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
+  if eval test x\${enable_${dirname}} "=" xno ; then
+    noconfigdirs="$noconfigdirs $dir"
+  fi
+done
+
 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
 # $build_configdirs and $target_configdirs.
 # If we have the source for $noconfigdirs entries, add them to $notsupp.
@@ -2141,8 +2144,6 @@ AC_SUBST_FILE(ospace_frag)
 
 # Miscellanea: directories, flags, etc.
 AC_SUBST(RPATH_ENVVAR)
-AC_SUBST(BUILD_PREFIX)
-AC_SUBST(BUILD_PREFIX_1)
 AC_SUBST(tooldir)
 AC_SUBST(build_tooldir)
 AC_SUBST(CONFIGURE_GDB_TK)
@@ -2159,7 +2160,7 @@ AC_SUBST(configdirs)
 
 # Target module lists & subconfigure args.
 AC_SUBST(target_configargs)
-AC_SUBST(target_configdirs)
+
 
 # Build tools.
 AC_SUBST(CC_FOR_BUILD)