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-rw-r--r--ChangeLog9
-rwxr-xr-xconfigure13
-rw-r--r--configure.ac13
3 files changed, 29 insertions, 6 deletions
diff --git a/ChangeLog b/ChangeLog
index e1b2ec5..a98c33b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2010-10-07 Dave Korn <dave.korn.cygwin@gmail.com>
+
+ * configure.ac (build_lto_plugin): New shell variable.
+ (--enable-lto): Turn on by default for all non-ELF platforms that
+ have had LTO support added so far. Set build_lto_plugin appropriately
+ for both ELF and non-ELF.
+ (configdirs): Add lto-plugin or not based on build_lto_plugin.
+ * configure: Regenerate.
+
2010-10-02 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
PR bootstrap/45326
diff --git a/configure b/configure
index 7762106..b1fbfaa 100755
--- a/configure
+++ b/configure
@@ -6676,11 +6676,13 @@ to specify its location." "$LINENO" 5
# Flags needed for libelf.
+ # ELF platforms build the lto-plugin when GOLD is in use.
+ build_lto_plugin=${ENABLE_GOLD}
fi
else
if test x"$default_enable_lto" = x"yes" ; then
case $target in
- *-apple-darwin*) ;;
+ *-apple-darwin* | *-cygwin* | *-mingw*) ;;
# On other non-ELF platforms, LTO must be explicitly enabled.
*) enable_lto=no ;;
esac
@@ -6691,13 +6693,18 @@ else
# warn during gcc/ subconfigure; unless you're bootstrapping with
# -flto it won't be needed until after installation anyway.
case $target in
- *-cygwin*|*-mingw* | *-apple-darwin*) ;;
+ *-cygwin* | *-mingw* | *-apple-darwin*) ;;
*) if test x"$enable_lto" = x"yes"; then
as_fn_error "LTO support is not enabled for this target." "$LINENO" 5
fi
;;
esac
fi
+ # Among non-ELF, only Windows platforms support the lto-plugin so far.
+ case $target in
+ *-cygwin* | *-mingw*) build_lto_plugin=yes ;;
+ *) ;;
+ esac
default_enable_lto=no
fi
@@ -6778,7 +6785,7 @@ if test -d ${srcdir}/gcc; then
*,lto,*) ;;
*) enable_languages="${enable_languages},lto" ;;
esac
- if test "${ENABLE_GOLD}" = "yes" ; then
+ if test "${build_lto_plugin}" = "yes" ; then
configdirs="$configdirs lto-plugin"
extra_host_libiberty_configure_flags=--enable-shared
fi
diff --git a/configure.ac b/configure.ac
index 6af4be1..bf5fe3a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1786,9 +1786,11 @@ to specify its location.])
# Flags needed for libelf.
AC_SUBST(libelflibs)
AC_SUBST(libelfinc)
+ # ELF platforms build the lto-plugin when GOLD is in use.
+ build_lto_plugin=${ENABLE_GOLD}
fi],[if test x"$default_enable_lto" = x"yes" ; then
case $target in
- *-apple-darwin*) ;;
+ *-apple-darwin* | *-cygwin* | *-mingw*) ;;
# On other non-ELF platforms, LTO must be explicitly enabled.
*) enable_lto=no ;;
esac
@@ -1799,13 +1801,18 @@ fi],[if test x"$default_enable_lto" = x"yes" ; then
# warn during gcc/ subconfigure; unless you're bootstrapping with
# -flto it won't be needed until after installation anyway.
case $target in
- *-cygwin*|*-mingw* | *-apple-darwin*) ;;
+ *-cygwin* | *-mingw* | *-apple-darwin*) ;;
*) if test x"$enable_lto" = x"yes"; then
AC_MSG_ERROR([LTO support is not enabled for this target.])
fi
;;
esac
fi
+ # Among non-ELF, only Windows platforms support the lto-plugin so far.
+ case $target in
+ *-cygwin* | *-mingw*) build_lto_plugin=yes ;;
+ *) ;;
+ esac
default_enable_lto=no])
@@ -1884,7 +1891,7 @@ if test -d ${srcdir}/gcc; then
*,lto,*) ;;
*) enable_languages="${enable_languages},lto" ;;
esac
- if test "${ENABLE_GOLD}" = "yes" ; then
+ if test "${build_lto_plugin}" = "yes" ; then
configdirs="$configdirs lto-plugin"
extra_host_libiberty_configure_flags=--enable-shared
fi