Download and apply patches found in Cygwin's gcc.cygport, maintained at
github/cygwinports/gcc, for a compiler running on cygwin. The ebuild
can define the cygwinports' git commit id as CYGWINPORTS_GITREV.
---
eclass/toolchain.eclass | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/eclass/toolchain.eclass b/eclass/toolchain.eclass
index faf96d2a41f..a16bfadc301 100644
--- a/eclass/toolchain.eclass
+++ b/eclass/toolchain.eclass
@@ -309,6 +309,14 @@ gentoo_urls() {
# ten Brugge's bounds-checking patches. If you want to
use a patch
# for an older gcc version with a new gcc, make sure you
set
# HTB_GCC_VER to that version of gcc.
+#
+# CYGWINPORTS_GITREV
+# If set, this variable signals that we should apply
additional patches
+# maintained by upstream Cygwin developers at
github/cygwinports/gcc,
+# using the specified git commit id there. The list of
patches to
+# apply is extracted from gcc.cygport, maintained there
as well.
+# This is done for compilers running on Cygwin, not for
cross compilers
+# with a Cygwin target.
get_gcc_src_uri() {
export PATCH_GCC_VER=${PATCH_GCC_VER:-${GCC_RELEASE_VER}}
export UCLIBC_GCC_VER=${UCLIBC_GCC_VER:-${PATCH_GCC_VER}}
@@ -375,6 +383,10 @@ get_gcc_src_uri() {
fi
fi
+ # Cygwin patches from https://github.com/cygwinports/gcc
+ [[ -n ${CYGWINPORTS_GITREV} ]] && \
+ GCC_SRC_URI+=" elibc_Cygwin? (
https://github.com/cygwinports/gcc/archive/${CYGWINPORTS_GITREV}.zip )"
+
echo "${GCC_SRC_URI}"
}
@@ -481,6 +493,8 @@ gcc_quick_unpack() {
use_if_iuse boundschecking && unpack
"bounds-checking-gcc-${HTB_GCC_VER}-${HTB_VER}.patch.bz2"
+ [[ -n ${CYGWINPORTS_GITREV} ]] && use elibc_Cygwin && unpack
"${CYGWINPORTS_GITREV}.zip"
+
popd > /dev/null
}
@@ -505,6 +519,7 @@ toolchain_src_prepare() {
fi
do_gcc_HTB_patches
do_gcc_PIE_patches
+ do_gcc_CYGWINPORTS_patches
epatch_user
if ( tc_version_is_at_least 4.8.2 || use_if_iuse hardened ) && ! use
vanilla ; then
@@ -645,6 +660,19 @@ do_gcc_PIE_patches() {
BRANDING_GCC_PKGVERSION="${BRANDING_GCC_PKGVERSION}, pie-${PIE_VER}"
}
+do_gcc_CYGWINPORTS_patches() {
+ [[ -n ${CYGWINPORTS_GITREV} ]] || return 0
+ use elibc_Cygwin || return 0
+
+ local p d="${WORKDIR}/gcc-${CYGWINPORTS_GITREV}"
+ for p in $(
+ eval "$(sed -ne '/PATCH_URI="/,/"/p' < "${d}"/gcc.cygport)"
+ echo ${PATCH_URI}
+ ); do
+ epatch "${d}/${p}"
+ done
+}
+
# configure to build with the hardened GCC specs as the default
make_gcc_hard() {
--
2.16.1
