I noticed whilst playing with some settings that busybox seems to not honour
any settings in the global TARGET_LDFLAGS variable (file:
package/utils/busybox) I tested this by checking the build log and noting that
an additional linker flag I patched into rules.mak was being ignored.
I was wondering if this is actually an error, because in the situation where
either CONFIG_BUSYBOX_USE_LIBRPC or CONFIG_BUSYBOX_CONFIG_PAM are set, LDFLAGS
is exported as the value of $(TARGET_LDFLAGS)
LDFLAGS is not passed through anywhere else in the file
It should be noted that the busybox make also accepts EXTRA_LDFLAGS; possibly
setting EXTRA_LDFLAGS=$(TARGET_LDFLAGS) might be a better way?
(The reason I was doing this is because a linker flag I set in the
TARGET_OPTIMIZATION config was being ignored by busybox and I discovered that
busybox doesnt honour -Wl,-z, style flags)
(Code extract:)
ifdef CONFIG_BUSYBOX_USE_LIBRPC
TARGET_CFLAGS += -I$(STAGING_DIR)/usr/include
export LDFLAGS=$(TARGET_LDFLAGS)
LDLIBS += rpc
endif
ifdef CONFIG_BUSYBOX_CONFIG_PAM
TARGET_CFLAGS += -I$(STAGING_DIR)/usr/include
export LDFLAGS=$(TARGET_LDFLAGS)
LDLIBS += pam pam_misc pthread
endif
define Build/Compile
+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
CC="$(TARGET_CC)" \
CROSS_COMPILE="$(TARGET_CROSS)" \
KBUILD_HAVE_NLS=no \
EXTRA_CFLAGS="$(TARGET_CFLAGS)" \
ARCH="$(ARCH)" \
SKIP_STRIP=y \
LDLIBS="$(LDLIBS)" \
$(BB_MAKE_VERBOSE) \
all
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