NetCube-Systems-Austria/kumquat-buildroot
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package/zstd: observe Buildroot optimisation flags

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Use Buildroot's setting for optimization, zstd's build system
overrides CFLAGS (adds -O3), but MOREFLAGS can override again.
Quick tests show that using -O2 (like buildroot)
is actually a little faster than -O3 on x86_64 Atoms.

Disable the legacy format, these are just needed for
decompressing files created with pre-release version.

Signed-off-by: Norbert Lange <nolange79@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
This commit is contained in:
Norbert Lange 2021-06-17 11:14:54 +02:00 committed by Arnout Vandecappelle (Essensium/Mind)
parent 8dfd7a1f90
commit 8d56423d3d
1 changed files with 4 additions and 0 deletions
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package/zstd/zstd.mk
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@ -12,6 +12,7 @@ ZSTD_LICENSE_FILES = LICENSE COPYING
ZSTD_CPE_ID_VENDOR = facebook
ZSTD_CPE_ID_PRODUCT = zstandard
ZSTD_OPTS += ZSTD_LEGACY_SUPPORT=0
ifeq ($(BR2_PACKAGE_ZLIB),y)
ZSTD_DEPENDENCIES += zlib
ZSTD_OPTS += HAVE_ZLIB=1
@ -33,6 +34,9 @@ else
ZSTD_OPTS += HAVE_LZ4=0
endif
# zstd will append -O3 after $(CFLAGS), use MOREFLAGS to override again
ZSTD_OPTS += MOREFLAGS="$(TARGET_OPTIMIZATION)"
ifeq ($(BR2_STATIC_LIBS),y)
ZSTD_BUILD_LIBS = libzstd.a
ZSTD_INSTALL_LIBS = install-static