[PATCH v2 1/3] Ignore undefined symbols for -mtls-dialect=gnu2

[Adhemerval Zanella <adhemerval.zanella@linaro.org>]

So it does not fail for arm config that defaults to -mtp=soft (which
issues a call to __aeabi_read_tp).
---
 configure    | 2 +-
 configure.ac | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 59ff1e415d..117b48a421 100755
--- a/configure
+++ b/configure
@@ -7020,7 +7020,7 @@ void foo (void)
 }
 EOF
 if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=gnu2 -nostdlib -nostartfiles
-		   conftest.c -o conftest 1>&5'
+		   -shared conftest.c -o conftest 1>&5'
   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
diff --git a/configure.ac b/configure.ac
index 65799e5685..19b88a47a5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1297,7 +1297,7 @@ void foo (void)
 }
 EOF
 if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=gnu2 -nostdlib -nostartfiles
-		   conftest.c -o conftest 1>&AS_MESSAGE_LOG_FD])
+		   -shared conftest.c -o conftest 1>&AS_MESSAGE_LOG_FD])
 then
   libc_cv_mtls_dialect_gnu2=yes
 else
-- 
2.34.1