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Bump min supported release for building HEAD to 10.3

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r307825 and r333017 disallow building FreeBSD-HEAD from 9.x or 10.x
versions that have some clang issues.  The minimum supported Subversion
revisions and osreldates containing the fix are:

Version  Min Rev  osreldate
    9.x  r286035     903509
   10.x  r286033    1002501

9.3 is the final 9.x release and does not contain the r286035 fix.
10.3 is the first 10.x release with the fix.  Thus, in practice 10.3 is
the oldest release that can build HEAD.

Although it may still be possible to build HEAD from an up-to-date
stable/9 it's not worth maintaining the special case when the branch
itself is unsupported and there are no usable releases from that branch.

Old UPDATING entries can be removed and the Clang warning in UPDATING
may be updated, in a future commit.

Approved by:	imp
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D15209
This commit is contained in:
Ed Maste 2018-04-27 19:50:30 +00:00
parent 4217c685b1
commit 754a9d6c59
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=333071
1 changed files with 3 additions and 15 deletions
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18
Makefile.inc1
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@ -524,9 +524,9 @@ PACKAGE= kernel
#
BOOTSTRAPPING?= 0
# Keep these in sync -- see below for special case exception
MINIMUM_SUPPORTED_OSREL?= 900044
MINIMUM_SUPPORTED_REL?= 9.1
# Keep these in sync
MINIMUM_SUPPORTED_OSREL?= 1002501
MINIMUM_SUPPORTED_REL?= 10.3
# Common environment for world related stages
CROSSENV+= \
@ -1845,18 +1845,6 @@ _elftoolchain_libs= lib/libelf lib/libdwarf
.endif
legacy: .PHONY
# Temporary special case for automatically detecting the clang compiler issue
# Note: 9.x didn't have FreeBSD_version bumps often enough, so you may need to
# set BOOTSTRAPPING to 0 if you're stable/9 tree post-dates r286035 but is before
# the version bump in r296219 (from July 29, 2015 -> Feb 29, 2016).
.if ${BOOTSTRAPPING} != 0 && \
${WANT_COMPILER_TYPE} == "clang" && ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} < 30601
.if ${BOOTSTRAPPING} > 1000000 && ${BOOTSTRAPPING} < 1002501
@echo "ERROR: Source upgrades from stable/10 prior to r286033 are not supported."; false
.elif ${BOOTSTRAPPING} > 900000 && ${BOOTSTRAPPING} < 903509
@echo "ERROR: Source upgrades from stable/9 prior to r286035 are not supported."; false
.endif
.endif
.if ${BOOTSTRAPPING} < ${MINIMUM_SUPPORTED_OSREL} && ${BOOTSTRAPPING} != 0
@echo "ERROR: Source upgrades from versions prior to ${MINIMUM_SUPPORTED_REL} are not supported."; \
false