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dhcpdump: fix build with musl

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muls exposes udphdr Linux member names only when _GNU_SOURCE is defined.

Fixes:
http://autobuild.buildroot.net/results/dc2/dc2902b758faa7bcfed44cca5fa73aeffdf284ae/
http://autobuild.buildroot.net/results/432/43214b5f7d9e5881fbeba7203ee7fcfc6386a492/
http://autobuild.buildroot.net/results/291/29100641731904b50d73af7cf2db08847fe1567a/

and more.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Baruch Siach 2015-08-25 09:32:21 +03:00 committed by Thomas Petazzoni
parent a123e7ed8e
commit 4803fca4d7
1 changed files with 2 additions and 1 deletions
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3
package/dhcpdump/dhcpdump.mk
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@ -16,7 +16,8 @@ DHCPDUMP_LIBS += `$(STAGING_DIR)/usr/bin/pcap-config --static --additional-libs`
endif
define DHCPDUMP_BUILD_CMDS
$(MAKE) -C $(@D) CC="$(TARGET_CC) $(TARGET_CFLAGS)" LIBS="$(DHCPDUMP_LIBS)"
$(MAKE) -C $(@D) CC="$(TARGET_CC) $(TARGET_CFLAGS) -D_GNU_SOURCE" \
LIBS="$(DHCPDUMP_LIBS)"
endef
define DHCPDUMP_INSTALL_TARGET_CMDS