Fix ecvt_r, fcvt_r namespace (bug 18522).

The functions ecvt, fcvt and gcvt, in some standards, bring in
references to ecvt_r and fcvt_r, which aren't in any of those
standards.  The calls are correctly to __ecvt_r and __fcvt_r, but then
the names ecvt_r and fcvt_r are defined as strong aliases; this patch
changes them to weak aliases.

Tested for x86_64 and x86 (testsuite, and that disassembly of
installed stripped shared libraries is unchanged by the patch).

	[BZ #18522]
	* misc/efgcvt_r.c
	[LONG_DOUBLE_COMPAT (libc, GLIBC_2_0) && !LONG_DOUBLE_CVT]
	(cvt_symbol): Use weak_alias instead of strong_alias.
	[LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)] (cvt_symbol): Likewise.
	* conform/Makefile (test-xfail-XPG4/stdlib.h/linknamespace):
	Remove variable.
	(test-xfail-UNIX98/stdlib.h/linknamespace): Likewise.
	(test-xfail-XOPEN2K/stdlib.h/linknamespace): Likewise.

1 files changed, 2 insertions, 2 deletions

diff --git a/misc/efgcvt_r.c b/misc/efgcvt_r.c
index ea62b6c149..2761222d87 100644
--- a/misc/efgcvt_r.c
+++ b/misc/efgcvt_r.c
@@ -251,13 +251,13 @@ __APPEND (FUNC_PREFIX, ecvt_r) (value, ndigit, decpt, sign, buf, len)
 #  define cvt_symbol(symbol) \
   cvt_symbol_1 (libc, __APPEND (FUNC_PREFIX, symbol), \
 	      APPEND (q, symbol), GLIBC_2_0); \
-  strong_alias (__APPEND (FUNC_PREFIX, symbol), APPEND (FUNC_PREFIX, symbol))
+  weak_alias (__APPEND (FUNC_PREFIX, symbol), APPEND (FUNC_PREFIX, symbol))
 #  define cvt_symbol_1(lib, local, symbol, version) \
   compat_symbol (lib, local, symbol, version)
 # endif
 #else
 # define cvt_symbol(symbol) \
-  strong_alias (__APPEND (FUNC_PREFIX, symbol), APPEND (FUNC_PREFIX, symbol))
+  weak_alias (__APPEND (FUNC_PREFIX, symbol), APPEND (FUNC_PREFIX, symbol))
 #endif
 cvt_symbol(fcvt_r);
 cvt_symbol(ecvt_r);