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tools/Makefile: Move _GNU_SOURCE to Makefile

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Commit 669dfc2e adds libfdt_env.h to HOSTCPPFLAGS. It causes stdio.h
to be included before _GNU_SOURCE is defined in C files. On some old hosts
some prototypes are protected by #ifdef __USE_GNU, which is set when
_GNU_SOURCE is defined.

Signed-off-by: York Sun <yorksun@freescale.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
York Sun
2013-07-30 15:26:11 -07:00
committed by Tom Rini
parent 1fd1e2f69f
commit 2db1c3fc67
8 changed files with 3 additions and 21 deletions
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4
tools/Makefile
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@@ -154,6 +154,7 @@ NOPEDOBJS := $(addprefix $(obj),$(NOPED_OBJ_FILES-y))
#
# Use native tools and options
# Define __KERNEL_STRICT_NAMES to prevent typedef overlaps
# Define _GNU_SOURCE to obtain the getline prototype from stdio.h
#
HOSTCPPFLAGS = -include $(SRCTREE)/include/libfdt_env.h \
-idirafter $(SRCTREE)/include \
@@ -163,7 +164,8 @@ HOSTCPPFLAGS = -include $(SRCTREE)/include/libfdt_env.h \
-I $(SRCTREE)/tools \
-DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) \
-DUSE_HOSTCC \
-D__KERNEL_STRICT_NAMES
-D__KERNEL_STRICT_NAMES \
-D_GNU_SOURCE
all: $(obj).depend $(BINS) $(LOGO-y) subdirs