tools/Makefile: Move _GNU_SOURCE to Makefile
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>
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- tools/Makefile 3 additions, 1 deletiontools/Makefile
- tools/aisimage.c 0 additions, 3 deletionstools/aisimage.c
- tools/imximage.c 0 additions, 3 deletionstools/imximage.c
- tools/kwbimage.c 0 additions, 3 deletionstools/kwbimage.c
- tools/mkenvimage.c 0 additions, 3 deletionstools/mkenvimage.c
- tools/omapimage.c 0 additions, 3 deletionstools/omapimage.c
- tools/pblimage.c 0 additions, 2 deletionstools/pblimage.c
- tools/ublimage.c 0 additions, 3 deletionstools/ublimage.c
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