CC_FOR_BUILD
AS_FOR_BUILD
AR_FOR_BUILD
-target_configargs
target_configdirs
configdirs
-host_configargs
build_configdirs
-build_configargs
INSTALL_GDB_TK
GDB_TK
CONFIGURE_GDB_TK
tooldir
GCC_SHLIB_SUBDIR
RPATH_ENVVAR
+target_configargs
+host_configargs
+build_configargs
BUILD_CONFIG
CXXFLAGS_FOR_TARGET
CFLAGS_FOR_TARGET
CXXFLAGS
CCC
CPP
+build_configargs
+host_configargs
+target_configargs
AR
AS
DLLTOOL
CXX C++ compiler command
CXXFLAGS C++ compiler flags
CPP C preprocessor
+ build_configargs
+ additional configure arguments for build directories
+ host_configargs
+ additional configure arguments for host directories
+ target_configargs
+ additional configure arguments for target directories
AR AR for the host
AS AS for the host
DLLTOOL DLLTOOL for the host
# 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
# 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 $target in
+ *-cygwin* | *-mingw*) build_lto_plugin=yes ;;
+ *) ;;
+ esac
default_enable_lto=no
fi
*,lto,*) ;;
*) enable_languages="${enable_languages},lto" ;;
esac
- if test "${ENABLE_GOLD}" = "yes" ; then
+ if test "${build_lto_plugin}" = "yes" ; then
configdirs="$configdirs lto-plugin"
extra_host_libiberty_configure_flags=--enable-shared
fi
fi
baseargs="$baseargs --disable-option-checking"
+# Record and document user additions to sub configure arguments.
+
+
+
+
# For the build-side libraries, we just need to pretend we're native,
# and not use the same cache file. Multilibs are neither needed nor
# desired.
-build_configargs="--cache-file=../config.cache ${baseargs}"
+build_configargs="$build_configargs --cache-file=../config.cache ${baseargs}"
# For host modules, accept cache file option, or specification as blank.
case "${cache_file}" in
# Host dirs don't like to share a cache file either, horribly enough.
# This seems to be due to autoconf 2.5x stupidity.
-host_configargs="--cache-file=./config.cache ${extra_host_args} ${baseargs}"
+host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
-target_configargs=${baseargs}
+target_configargs="$target_configargs ${baseargs}"
# Passing a --with-cross-host argument lets the target libraries know
# whether they are being built with a cross-compiler or being built