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* configure.ac (build_lto_plugin): New shell variable.

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(--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.
This commit is contained in:
Dave Korn
2010-10-07 20:50:02 +00:00
parent 327e1afced
commit 1a91b8c0ac
3 changed files with 29 additions and 6 deletions
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9
ChangeLog
View File

@@ -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

11
configure vendored
View File

@@ -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
@@ -6698,6 +6700,11 @@ else
;;
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

11
configure.ac
View File

@@ -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 $target in
*-apple-darwin*) ;;
*-apple-darwin* | *-cygwin* | *-mingw*) ;;
# On other non-ELF platforms, LTO must be explicitly enabled.
*) enable_lto=no ;;
esac
@@ -1806,6 +1808,11 @@ fi],[if test x"$default_enable_lto" = x"yes" ; then
;;
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