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GNU C Library master sources branch master updated. glibc-2.20-190-g4863355
- From: jsm28 at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 14 Nov 2014 18:01:06 -0000
- Subject: GNU C Library master sources branch master updated. glibc-2.20-190-g4863355
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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=4863355ad52b71fecd7529928999074afdc4d51f
commit 4863355ad52b71fecd7529928999074afdc4d51f
Author: Joseph Myers <joseph@codesourcery.com>
Date: Fri Nov 14 18:00:34 2014 +0000
Require GCC 4.6 or later to build glibc.
As discussed in the thread starting at
<https://sourceware.org/ml/libc-alpha/2014-10/msg00792.html>, and
continuing into November, this patch increases the minimum GCC version
for building glibc to 4.6 (there seemed to be no clear consensus for
4.7). In particular, this allows us to use #pragma GCC diagnostic for
fine-grained warning control with -Werror (subject to establishing a
suitable policy for that use). The documentation has a statement, as
requested, about the most recent GCC version tested for building
glibc, and I've updated <https://sourceware.org/glibc/wiki/Release> to
refer to updating that statement. A NEWS entry is added for this
change, although previous such changes didn't get them.
Tested for x86_64 (testsuite, and that installed shared libraries are
unchanged by this patch).
* configure.ac (libc_cv_compiler_ok): Require GCC 4.6 or later.
* configure: Regenerated.
* manual/install.texi (Tools for Compilation): Document a
requirement of GCC 4.6 or later and that GCC 4.9 is the newest
compiler verified to work.
* INSTALL: Regenerated.
diff --git a/ChangeLog b/ChangeLog
index 8448f28..496467e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
2014-11-14 Joseph Myers <joseph@codesourcery.com>
+ * configure.ac (libc_cv_compiler_ok): Require GCC 4.6 or later.
+ * configure: Regenerated.
+ * manual/install.texi (Tools for Compilation): Document a
+ requirement of GCC 4.6 or later and that GCC 4.9 is the newest
+ compiler verified to work.
+ * INSTALL: Regenerated.
+
* include/string.h [NO_MEMPCPY_STPCPY_REDIRECT] (mempcpy): Do not
redeclare with asm name.
[NO_MEMPCPY_STPCPY_REDIRECT] (stpcpy): Likewise.
diff --git a/INSTALL b/INSTALL
index 3130c2a..dac6178 100644
--- a/INSTALL
+++ b/INSTALL
@@ -329,10 +329,13 @@ build the GNU C Library:
recommend GNU `make' version 3.79. All earlier versions have
severe bugs or lack features.
- * GCC 4.4 or newer, GCC 4.6 recommended
+ * GCC 4.6 or newer
- GCC 4.4 or higher is required; as of this writing, GCC 4.6 is the
- compiler we advise to use to build the GNU C Library.
+ GCC 4.6 or higher is required. In general it is recommended to use
+ the newest version of the compiler that is known to work for
+ building the GNU C Library, as newer compilers usually produce
+ better code. As of release time, GCC 4.9 is the newest compiler
+ verified to work to build the GNU C Library.
You can use whatever compiler you like to compile programs that use
the GNU C Library.
diff --git a/NEWS b/NEWS
index c582c8e..867d659 100644
--- a/NEWS
+++ b/NEWS
@@ -14,6 +14,10 @@ Version 2.21
17555, 17570, 17571, 17572, 17573, 17574, 17582, 17583, 17584, 17585,
17589, 17594.
+* The minimum GCC version that can be used to build this version of the GNU
+ C Library is GCC 4.6. Older GCC versions, and non-GNU compilers, can
+ still be used to compile programs using the GNU C Library.
+
* New locales: tu_IN, bh_IN.
Version 2.20
diff --git a/configure b/configure
index 3c161be..0cb54ec 100755
--- a/configure
+++ b/configure
@@ -4929,7 +4929,7 @@ int
main ()
{
-#if !defined __GNUC__ || __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 4)
+#if !defined __GNUC__ || __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 6)
#error insufficient compiler
#endif
;
diff --git a/configure.ac b/configure.ac
index a982407..b2c4b1f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -934,7 +934,7 @@ AC_CHECK_PROG_VER(AWK, gawk, --version,
AC_CACHE_CHECK([if $CC is sufficient to build libc], libc_cv_compiler_ok, [
AC_TRY_COMPILE([], [
-#if !defined __GNUC__ || __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 4)
+#if !defined __GNUC__ || __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 6)
#error insufficient compiler
#endif],
[libc_cv_compiler_ok=yes],
diff --git a/manual/install.texi b/manual/install.texi
index e1c2b9a..1eafb6e 100644
--- a/manual/install.texi
+++ b/manual/install.texi
@@ -372,10 +372,13 @@ recommend GNU @code{make} version 3.79. All earlier versions have severe
bugs or lack features.
@item
-GCC 4.4 or newer, GCC 4.6 recommended
+GCC 4.6 or newer
-GCC 4.4 or higher is required; as of this writing, GCC 4.6 is the
-compiler we advise to use to build @theglibc{}.
+GCC 4.6 or higher is required. In general it is recommended to use
+the newest version of the compiler that is known to work for building
+@theglibc{}, as newer compilers usually produce better code. As of
+release time, GCC 4.9 is the newest compiler verified to work to build
+@theglibc{}.
You can use whatever compiler you like to compile programs that use
@theglibc{}.
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 7 +++++++
INSTALL | 9 ++++++---
NEWS | 4 ++++
configure | 2 +-
configure.ac | 2 +-
manual/install.texi | 9 ++++++---
6 files changed, 25 insertions(+), 8 deletions(-)
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