toolchain.eclass: drop PRERELEASE support

gcc's mirrors don't have prerelrease directories anymore
and only have weekly snapshots and release candidates.

Those now are covered by the following version schema:
  1.0.0_pre9999: live ebuild
  1.2.3_alphaYYYYMMDD: weekly snapshots
  1.2.3_rcYYYYMMDD: release candidates

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

1 files changed, 17 insertions, 37 deletions

diff --git a/eclass/toolchain.eclass b/eclass/toolchain.eclass
index 5033708c7e51..aa70a11c4107 100644
--- a/eclass/toolchain.eclass
+++ b/eclass/toolchain.eclass
@@ -77,22 +77,18 @@ GCCMICRO=$(ver_cut 3 ${GCC_PV})
 # ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)?
 GCC_CONFIG_VER=${GCC_CONFIG_VER:-$(ver_rs 3 '-' ${GCC_PV})}
 
-# Pre-release support
-if [[ ${GCC_PV} == *_pre* ]] ; then
-	PRERELEASE=${GCC_PV/_pre/-}
-elif [[ ${GCC_PV} == *_alpha* ]] ; then
-	SNAPSHOT=${GCC_BRANCH_VER}-${GCC_PV##*_alpha}
-elif [[ ${GCC_PV} == *_beta* ]] ; then
-	SNAPSHOT=${GCC_BRANCH_VER}-${GCC_PV##*_beta}
+# Pre-release support. Versioning schema:
+# 1.0.0_pre9999: live ebuild
+# 1.2.3_alphaYYYYMMDD: weekly snapshots
+# 1.2.3_rcYYYYMMDD: release candidates
+if [[ ${GCC_PV} == *_alpha* ]] ; then
+	# weekly snapshots
+	SNAPSHOT=${GCCMAJOR}-${GCC_PV##*_alpha}
 elif [[ ${GCC_PV} == *_rc* ]] ; then
+	# release candidates
 	SNAPSHOT=${GCC_PV%_rc*}-RC-${GCC_PV##*_rc}
 fi
 
-if [[ ${SNAPSHOT} == [56789].0-* ]] ; then
-	# The gcc-5+ releases have dropped the .0 for some reason.
-	SNAPSHOT=${SNAPSHOT/.0}
-fi
-
 PREFIX=${TOOLCHAIN_PREFIX:-${EPREFIX}/usr}
 
 if tc_version_is_at_least 3.4.0 ; then
@@ -191,7 +187,7 @@ if [[ ${PN} != "kgcc64" && ${PN} != gcc-* ]] ; then
 fi
 
 if tc_version_is_at_least 10; then
-	# Note: currently we pull in prereleases, snapshots and
+	# Note: currently we pull in releases, snapshots and
 	# git versions into the same SLOT.
 	SLOT="${GCCMAJOR}"
 else
@@ -260,12 +256,10 @@ PDEPEND=">=sys-devel/gcc-config-1.7"
 #---->> S + SRC_URI essentials <<----
 
 # Set the source directory depending on whether we're using
-# a prerelease, snapshot, or release tarball.
+# a live git tree, snapshot, or release tarball.
 S=$(
 	if tc_is_live ; then
 		echo ${EGIT_CHECKOUT_DIR}
-	elif [[ -n ${PRERELEASE} ]] ; then
-		echo ${WORKDIR}/gcc-${PRERELEASE}
 	elif [[ -n ${SNAPSHOT} ]] ; then
 		echo ${WORKDIR}/gcc-${SNAPSHOT}
 	else
@@ -347,18 +341,11 @@ get_gcc_src_uri() {
 	export SPECS_GCC_VER=${SPECS_GCC_VER:-${GCC_RELEASE_VER}}
 
 	# Set where to download gcc itself depending on whether we're using a
-	# prerelease, snapshot, or release tarball.
+	# live git tree, snapshot, or release tarball.
 	if tc_is_live ; then
-		# Nothing to do w/git snapshots.
-		:
-	elif [[ -n ${PRERELEASE} ]] ; then
-		GCC_SRC_URI="ftp://gcc.gnu.org/pub/gcc/prerelease-${PRERELEASE}/gcc-${PRERELEASE}.tar.bz2"
+		: # Nothing to do w/git snapshots.
 	elif [[ -n ${SNAPSHOT} ]] ; then
-		if tc_version_is_between 5.5 6 || tc_version_is_between 6.4 7 || tc_version_is_at_least 7.2 ; then
-			GCC_SRC_URI="ftp://gcc.gnu.org/pub/gcc/snapshots/${SNAPSHOT}/gcc-${SNAPSHOT}.tar.xz"
-		else
-			GCC_SRC_URI="ftp://gcc.gnu.org/pub/gcc/snapshots/${SNAPSHOT}/gcc-${SNAPSHOT}.tar.bz2"
-		fi
+		GCC_SRC_URI="ftp://gcc.gnu.org/pub/gcc/snapshots/${SNAPSHOT}/gcc-${SNAPSHOT}.tar.xz"
 	else
 		if tc_version_is_between 5.5 6 || tc_version_is_between 6.4 7 || tc_version_is_at_least 7.2 ; then
 			GCC_SRC_URI="mirror://gnu/gcc/gcc-${GCC_PV}/gcc-${GCC_RELEASE_VER}.tar.xz"
@@ -414,7 +401,7 @@ SRC_URI=$(get_gcc_src_uri)
 #---->> pkg_pretend <<----
 
 toolchain_is_unsupported() {
-	[[ -n ${PRERELEASE}${SNAPSHOT} ]] || tc_is_live
+	[[ -n ${SNAPSHOT} ]] || tc_is_live
 }
 
 toolchain_pkg_pretend() {
@@ -465,14 +452,8 @@ gcc_quick_unpack() {
 		unpack ${GCC_A_FAKEIT}
 	elif tc_is_live ; then
 		: # sources comes from git, not tarball
-	elif [[ -n ${PRERELEASE} ]] ; then
-		unpack gcc-${PRERELEASE}.tar.bz2
 	elif [[ -n ${SNAPSHOT} ]] ; then
-		if tc_version_is_between 5.5 6 || tc_version_is_between 6.4 7 || tc_version_is_at_least 7.2 ; then
-			unpack gcc-${SNAPSHOT}.tar.xz
-		else
-			unpack gcc-${SNAPSHOT}.tar.bz2
-		fi
+		unpack gcc-${SNAPSHOT}.tar.xz
 	else
 		if tc_version_is_between 5.5 6 || tc_version_is_between 6.4 7 || tc_version_is_at_least 7.2 ; then
 			unpack gcc-${GCC_RELEASE_VER}.tar.xz
@@ -587,8 +568,7 @@ toolchain_src_prepare() {
 	gcc_version_patch
 
 	if tc_version_is_at_least 4.1 ; then
-		if [[ -n ${SNAPSHOT} || -n ${PRERELEASE} ]] ; then
-			# BASE-VER must be a three-digit version number
+		if [[ -n ${SNAPSHOT} ]] || tc_is_live ; then
 			# followed by an optional -pre string
 			#   eg. 4.5.1, 4.6.2-pre20120213, 4.7.0-pre9999
 			# If BASE-VER differs from ${PV/_/-} then libraries get installed in
@@ -2263,7 +2243,7 @@ toolchain_pkg_postinst() {
 		cp "${ROOT%/}${DATAPATH}"/c{89,99} "${EROOT%/}"/usr/bin/ 2>/dev/null
 	fi
 
-	if [[ -n ${PRERELEASE}${SNAPSHOT} ]] ; then
+	if toolchain_is_unsupported ; then
 		einfo "This GCC ebuild is provided for your convenience, and the use"
 		einfo "of this compiler is not supported by the Gentoo Developers."
 		einfo "Please report bugs to upstream at http://gcc.gnu.org/bugzilla/"