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NEWS: Mention testing glibc build with a different set of compilers

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Also document C and C++ compilers used to test glibc should come from
the same set of compilers.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>
This commit is contained in:
H.J. Lu 2024-12-24 05:20:43 +08:00
parent d0b8aa6de4
commit 0c36c983ec
3 changed files with 17 additions and 7 deletions
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6
INSTALL
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@ -49,9 +49,9 @@ if 'CFLAGS' is specified it must enable optimization. For example:
$ ../glibc-VERSION/configure CC="gcc -m32" CFLAGS="-O3" $ ../glibc-VERSION/configure CC="gcc -m32" CFLAGS="-O3"
To test the GNU C Library with a different C compiler or a different To test the GNU C Library with a different set of C and C++
C++ compiler, 'TEST_CC=COMPILER' and 'TEST_CXX=COMPILER' arguments can compilers, 'TEST_CC=COMPILER' and 'TEST_CXX=COMPILER' arguments can be
be passed to 'configure'. For example: passed to 'configure'. For example:
$ ../glibc-VERSION/configure TEST_CC="gcc-6.4.1" TEST_CXX="g++-6.4.1" $ ../glibc-VERSION/configure TEST_CC="gcc-6.4.1" TEST_CXX="g++-6.4.1"

11
NEWS
View file

@ -9,6 +9,17 @@ Version 2.41
Major new features: Major new features:
* Support testing glibc build with a different set of C and C++ compilers
from the C and C++ compilers used to build glibc with
$ ../configure TEST_CC="gcc-6.4.1" TEST_CXX="g++-6.4.1"
And support testing glibc build with Clang
$ ../configure TEST_CC="clang" TEST_CXX="clang++"
Some run-time failures with Clang are expected.
* In /etc/resolv.conf and the RES_OPTIONS, option flags can now be * In /etc/resolv.conf and the RES_OPTIONS, option flags can now be
prefixed with “-” to clear previously set flags. For example, if prefixed with “-” to clear previously set flags. For example, if
/etc/resolv.conf contains “options no-aaaa”, a process running with /etc/resolv.conf contains “options no-aaaa”, a process running with

7
manual/install.texi
View file

@ -75,10 +75,9 @@ and @theglibc{} cannot be compiled without optimization, so if
$ ../glibc-@var{version}/configure CC="gcc -m32" CFLAGS="-O3" $ ../glibc-@var{version}/configure CC="gcc -m32" CFLAGS="-O3"
@end smallexample @end smallexample
To test @theglibc{} with a different C compiler or a different C++ To test @theglibc{} with a different set of C and C++ compilers,
compiler, @samp{TEST_CC=@var{compiler}} and @samp{TEST_CC=@var{compiler}} and @samp{TEST_CXX=@var{compiler}}
@samp{TEST_CXX=@var{compiler}} arguments can be passed to arguments can be passed to @code{configure}. For example:
@code{configure}. For example:
@smallexample @smallexample
$ ../glibc-@var{version}/configure TEST_CC="gcc-6.4.1" TEST_CXX="g++-6.4.1" $ ../glibc-@var{version}/configure TEST_CC="gcc-6.4.1" TEST_CXX="g++-6.4.1"