---
 gx86/eclass/autotools-multilib.eclass |  82 +----------------------
 gx86/eclass/multilib-build.eclass     | 121 ++++++++++++++++++++++++++++++++++
 2 files changed, 124 insertions(+), 79 deletions(-)

diff --git a/gx86/eclass/autotools-multilib.eclass 
b/gx86/eclass/autotools-multilib.eclass
index 55d32d7..6b0960f 100644
--- a/gx86/eclass/autotools-multilib.eclass
+++ b/gx86/eclass/autotools-multilib.eclass
@@ -33,28 +33,6 @@ inherit autotools-utils multilib-build
 
 EXPORT_FUNCTIONS src_prepare src_configure src_compile src_test src_install
 
-# @ECLASS-VARIABLE: MULTILIB_WRAPPED_HEADERS
-# @DESCRIPTION:
-# A list of headers to wrap for multilib support. The listed headers
-# will be moved to a non-standard location and replace with a file
-# including them conditionally to current ABI.
-#
-# This variable has to be a bash array. Paths shall be relative to
-# installation root (${ED}), and name regular files. Recursive wrapping
-# is not supported.
-#
-# Please note that header wrapping is *discouraged*. It is preferred to
-# install all headers in a subdirectory of libdir and use pkg-config to
-# locate the headers. Some C preprocessors will not work with wrapped
-# headers.
-#
-# Example:
-# @CODE
-# MULTILIB_WRAPPED_HEADERS=(
-#      /usr/include/foobar/config.h
-# )
-# @CODE
-
 autotools-multilib_src_prepare() {
        autotools-utils_src_prepare "${@}"
 }
@@ -71,71 +49,17 @@ autotools-multilib_src_test() {
        multilib_foreach_abi autotools-utils_src_test "${@}"
 }
 
-_autotools-multilib_wrap_headers() {
-       debug-print-function ${FUNCNAME} "$@"
-       local f
-
-       for f in "${MULTILIB_WRAPPED_HEADERS[@]}"; do
-               # drop leading slash if it's there
-               f=${f#/}
-
-               if [[ ${f} != usr/include/* ]]; then
-                       die "Wrapping headers outside of /usr/include is not 
supported at the moment."
-               fi
-               # and then usr/include
-               f=${f#usr/include}
-
-               local dir=${f%/*}
-
-               # $CHOST shall be set by multilib_toolchain_setup
-               dodir "/tmp/multilib-include/${CHOST}${dir}"
-               mv "${ED}/usr/include${f}" 
"${ED}/tmp/multilib-include/${CHOST}${dir}/" || die
-
-               if [[ ! -f ${ED}/tmp/multilib-include${f} ]]; then
-                       dodir "/tmp/multilib-include${dir}"
-                       # a generic template
-                       cat > "${ED}/tmp/multilib-include${f}" <<_EOF_ || die
-/* This file is auto-generated by autotools-multilib.eclass
- * as a multilib-friendly wrapper. For the original content,
- * please see the files that are #included below.
- */
-
-#if defined(__x86_64__) /* amd64 */
-#      if defined(__ILP32__) /* x32 ABI */
-#              error "x86_x32 not supported by the package."
-#      else /* 64-bit ABI */
-#              error "x86_64 not supported by the package."
-#      endif
-#elif defined(__i386__) /* plain x86 */
-#      error "x86_32 not supported by the package."
-#else
-#      error "No ABI matched, please report a bug to bugs.gentoo.org"
-#endif
-_EOF_
-               fi
-
-               # Note: match a space afterwards to avoid collision potential.
-               sed -e "/${MULTILIB_ABI} /s&error.*&include <${CHOST}/${f}>&" \
-                       -i "${ED}/tmp/multilib-include${f}" || die
-       done
-}
-
 autotools-multilib_src_install() {
        autotools-multilib_secure_install() {
                autotools-utils_src_install "${@}"
 
-               _autotools-multilib_wrap_headers
+               multilib_prepare_wrappers
                # Make sure all headers are the same for each ABI.
                multilib_check_headers
        }
 
        multilib_foreach_abi autotools-multilib_secure_install "${@}"
 
-       # merge the wrapped headers
-       if [[ -d "${ED}"/tmp/multilib-include ]]; then
-               multibuild_merge_root \
-                       "${ED}"/tmp/multilib-include "${ED}"/usr/include
-               # it can fail if something else uses /tmp
-               rmdir "${ED}"/tmp &>/dev/null
-       fi
+       # merge the wrappers
+       multilib_install_wrappers
 }
diff --git a/gx86/eclass/multilib-build.eclass 
b/gx86/eclass/multilib-build.eclass
index fdaed6b..f0c433b 100644
--- a/gx86/eclass/multilib-build.eclass
+++ b/gx86/eclass/multilib-build.eclass
@@ -235,5 +235,126 @@ multilib_copy_sources() {
        multibuild_copy_sources
 }
 
+# @ECLASS-VARIABLE: MULTILIB_WRAPPED_HEADERS
+# @DESCRIPTION:
+# A list of headers to wrap for multilib support. The listed headers
+# will be moved to a non-standard location and replaced with a file
+# including them conditionally to current ABI.
+#
+# This variable has to be a bash array. Paths shall be relative to
+# installation root (${ED}), and name regular files. Recursive wrapping
+# is not supported.
+#
+# Please note that header wrapping is *discouraged*. It is preferred to
+# install all headers in a subdirectory of libdir and use pkg-config to
+# locate the headers. Some C preprocessors will not work with wrapped
+# headers.
+#
+# Example:
+# @CODE
+# MULTILIB_WRAPPED_HEADERS=(
+#      /usr/include/foobar/config.h
+# )
+# @CODE
+
+# @FUNCTION: multilib_prepare_wrappers
+# @USAGE: [<install-root>]
+# @DESCRIPTION:
+# Perform the preparation of all kinds of wrappers for the current ABI.
+# This function shall be called once per each ABI, after installing
+# the files to be wrapped.
+#
+# Takes an optional custom <install-root> from which files will be
+# used. If no root is specified, uses ${ED}.
+#
+# The files to be wrapped are specified using separate variables,
+# e.g. MULTILIB_WRAPPED_HEADERS. Those variables shall not be changed
+# between the successive calls to multilib_prepare_wrappers
+# and multilib_install_wrappers.
+#
+# After all wrappers are prepared, multilib_install_wrappers shall
+# be called to commit them to the installation tree.
+multilib_prepare_wrappers() {
+       debug-print-function ${FUNCNAME} "${@}"
+
+       [[ ${#} -le 1 ]] || die "${FUNCNAME}: too many arguments"
+
+       local root=${1:-${ED}}
+       local f
+
+       for f in "${MULTILIB_WRAPPED_HEADERS[@]}"; do
+               # drop leading slash if it's there
+               f=${f#/}
+
+               if [[ ${f} != usr/include/* ]]; then
+                       die "Wrapping headers outside of /usr/include is not 
supported at the moment."
+               fi
+               # and then usr/include
+               f=${f#usr/include}
+
+               local dir=${f%/*}
+
+               # $CHOST shall be set by multilib_toolchain_setup
+               dodir "/tmp/multilib-include/${CHOST}${dir}"
+               mv "${root}/usr/include${f}" 
"${ED}/tmp/multilib-include/${CHOST}${dir}/" || die
+
+               if [[ ! -f ${ED}/tmp/multilib-include${f} ]]; then
+                       dodir "/tmp/multilib-include${dir}"
+                       # a generic template
+                       cat > "${ED}/tmp/multilib-include${f}" <<_EOF_ || die
+/* This file is auto-generated by multilib-build.eclass
+ * as a multilib-friendly wrapper. For the original content,
+ * please see the files that are #included below.
+ */
+
+#if defined(__x86_64__) /* amd64 */
+#      if defined(__ILP32__) /* x32 ABI */
+#              error "x86_x32 not supported by the package."
+#      else /* 64-bit ABI */
+#              error "x86_64 not supported by the package."
+#      endif
+#elif defined(__i386__) /* plain x86 */
+#      error "x86_32 not supported by the package."
+#else
+#      error "No ABI matched, please report a bug to bugs.gentoo.org"
+#endif
+_EOF_
+               fi
+
+               # Note: match a space afterwards to avoid collision potential.
+               sed -e "/${MULTILIB_ABI} /s&error.*&include <${CHOST}/${f}>&" \
+                       -i "${ED}/tmp/multilib-include${f}" || die
+       done
+}
+
+# @FUNCTION: multilib_install_wrappers
+# @USAGE: [<install-root>]
+# @DESCRIPTION:
+# Install the previously-prepared wrappers. This function shall
+# be called once, after all wrappers were prepared.
+#
+# Takes an optional custom <install-root> to which the wrappers will be
+# installed. If no root is specified, uses ${ED}. There is no need to
+# use the same root as when preparing the wrappers.
+#
+# The files to be wrapped are specified using separate variables,
+# e.g. MULTILIB_WRAPPED_HEADERS. Those variables shall not be changed
+# between the calls to multilib_prepare_wrappers
+# and multilib_install_wrappers.
+multilib_install_wrappers() {
+       debug-print-function ${FUNCNAME} "${@}"
+
+       [[ ${#} -le 1 ]] || die "${FUNCNAME}: too many arguments"
+
+       local root=${1:-${ED}}
+
+       if [[ -d "${ED}"/tmp/multilib-include ]]; then
+               multibuild_merge_root \
+                       "${ED}"/tmp/multilib-include "${root}"/usr/include
+               # it can fail if something else uses /tmp
+               rmdir "${ED}"/tmp &>/dev/null
+       fi
+}
+
 _MULTILIB_BUILD=1
 fi
-- 
1.8.1.5


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