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GNU C Library master sources branch master updated. glibc-2.26.9000-994-g7d38eb3

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      from  2e77deef676677a7bed97d87d2519679654a2772 (commit)

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- Log -----------------------------------------------------------------;a=commitdiff;h=7d38eb38977980efe703eac93645b1af5a5f8a0c

commit 7d38eb38977980efe703eac93645b1af5a5f8a0c
Author: Aurelien Jarno <>
Date:   Sat Dec 16 12:25:41 2017 +0100

    ldconfig: set LC_COLLATE to C [BZ #22505]
    ldconfig supports `include' directives and use the glob function to
    process them. The glob function sort entries according to the LC_COLLATE
    category. When using a standard "include /etc/*.conf" entry
    in /etc/, the order therefore depends on the locale used to
    run ldconfig. A few examples of locale specific order that might be
    disturbing in that context compared to the C locale:
    - The cs_CZ and sk_SK locales sort the digits after the letters.
    - The et_EE locale sorts the 'z' between 's' and 't'.
    This patch fixes that by setting LC_COLLATE to C in order to process
    files in deterministic order, independently of the locale used to launch
    NOTE: This should NOT be backported to older release branches.
    	[BZ #22505]
    	* elf/ldconfig.c (main): Call setlocale to force LC_COLLATE to C.

diff --git a/ChangeLog b/ChangeLog
index 67d11c9..815e735 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2017-12-16  Aurelien Jarno  <>
+	[BZ #22505]
+	* elf/ldconfig.c (main): Call setlocale to force LC_COLLATE to C.
 2017-12-16  Rajalakshmi Srinivasaraghavan  <>
 	* sysdeps/s390/fpu/libm-test-ulps: Update.
diff --git a/NEWS b/NEWS
index 61fed65..0670585 100644
--- a/NEWS
+++ b/NEWS
@@ -63,6 +63,10 @@ Major new features:
 * Optimized memcpy, mempcpy, memmove, and memset for sparc M7.
+* The ldconfig utility now processes `include' directives using the C/POSIX
+  collation ordering.  Previous glibc versions used locale-specific
+  ordering, the change might break systems that relied on that.
 Deprecated and removed features, and other changes affecting compatibility:
 * On GNU/Linux, the obsolete Linux constant PTRACE_SEIZE_DEVEL is no longer
diff --git a/elf/ldconfig.c b/elf/ldconfig.c
index 8904235..2c01ab5 100644
--- a/elf/ldconfig.c
+++ b/elf/ldconfig.c
@@ -1259,6 +1259,10 @@ main (int argc, char **argv)
   /* Set locale via LC_ALL.  */
   setlocale (LC_ALL, "");
+  /* But keep the C collation.  That way `include' directives using
+     globbing patterns are processed in a locale-independent order.  */
+  setlocale (LC_COLLATE, "C");
   /* Set the text message domain.  */
   textdomain (_libc_intl_domainname);


Summary of changes:
 ChangeLog      |    5 +++++
 NEWS           |    4 ++++
 elf/ldconfig.c |    4 ++++
 3 files changed, 13 insertions(+), 0 deletions(-)

GNU C Library master sources

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