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config.guess: x86_64-pc-solaris2.11 is not properly recognized

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config.guess guesses Solaris 11 to run on a 32-bit platform
despite Solaris 11 no longer supporting any 32-bit platform.

See the following code at lines 434 to 445:

| SUN_ARCH=i386
| # If there is a compiler, see if it is configured for 64-bit objects.
| # Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
| # This test works for both compilers.
| if test "$CC_FOR_BUILD" != no_compiler_found; then
|     if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
|         (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
|         grep IS_64BIT_ARCH >/dev/null
|     then
|         SUN_ARCH=x86_64
|     fi
| fi

If "cc" is installed, i.e. the Oracle Studio compiler, this one is
chosen for $CC_FOR_BUILD.  This compiler, the gcc provided by Oracle
and also gcc bootstrapped from sources on that platform with a default
configuration will by default generate 32-bit binaries -- even on
a 64-bit platform.  And __amd64 will not be defined for compilations
targeting a 32-bit platform.  This is different from the corresponding
behaviour on GNU/Linux systems where the local platform is targeted by
default.

Thus, as long as you do not add "-m64" or if you have a custom-built
gcc which defaults to 64 bit, you will get 32-bit binaries on Solaris
despite living on a 64-bit platform.

* config.guess (i86pc:SunOS:5.*:* || i86xen:SunOS:5.*:*): Adapt the
test by adding the "-m64" flag.  This will work properly for Solaris
10 as well (the last Solaris release that supported x86 32-bit
platforms).
* doc/config.guess.1: Regenerate.

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
This commit is contained in:
Andreas F. Borchert 2021-11-30 21:18:10 +01:00 committed by Dmitry V. Levin
parent a013aac61e
commit 9e4c79f5fc
2 changed files with 3 additions and 3 deletions
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4
config.guess vendored
View File

@ -4,7 +4,7 @@
# shellcheck disable=SC2006,SC2268 # see below for rationale
timestamp='2021-10-27'
timestamp='2021-11-30'
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
@ -437,7 +437,7 @@ case $UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION in
# This test works for both compilers.
if test "$CC_FOR_BUILD" != no_compiler_found; then
if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
(CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
(CCOPTS="" $CC_FOR_BUILD -m64 -E - 2>/dev/null) | \
grep IS_64BIT_ARCH >/dev/null
then
SUN_ARCH=x86_64

2
doc/config.guess.1
View File

@ -1,5 +1,5 @@
.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.47.16.
.TH CONFIG.GUESS "1" "October 2021" "GNU config.guess (2021-10-27)" "User Commands"
.TH CONFIG.GUESS "1" "November 2021" "GNU config.guess (2021-11-30)" "User Commands"
.SH NAME
config.guess \- guess the build system triplet
.SH SYNOPSIS