musl: work around gcc 4.9.x bug

MUSL doesn't build happily with gcc 4.9.0/1 so work around the bug when
appropiate as suggested by upstream.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Gustavo Zacarias 2014-07-17 09:43:57 -03:00 committed by Thomas Petazzoni
parent 21e468fc4f
commit e3d5da651b

View File

@ -18,6 +18,12 @@ MUSL_ADD_TOOLCHAIN_DEPENDENCY = NO
MUSL_INSTALL_STAGING = YES
# gcc constant folding bug with weak aliases workaround
# See http://www.openwall.com/lists/musl/2014/05/15/1
ifeq ($(BR2_GCC_VERSION_4_9_X),y)
MUSL_EXTRA_CFLAGS += -fno-toplevel-reorder
endif
# We need to run the musl configure script prior to building the
# gcc-intermediate, so that we can call the install-headers step and
# get the crt<X>.o built. However, we need to call it again after
@ -29,7 +35,7 @@ MUSL_INSTALL_STAGING = YES
define MUSL_CONFIGURE_CALL
(cd $(@D); \
$(TARGET_CONFIGURE_OPTS) \
CFLAGS="$(filter-out -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64,$(TARGET_CFLAGS))" \
CFLAGS="$(filter-out -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64,$(TARGET_CFLAGS)) $(MUSL_EXTRA_CFLAGS)" \
CPPFLAGS="$(filter-out -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64,$(TARGET_CPPFLAGS))" \
./configure \
--target=$(GNU_TARGET_NAME) \