Compile error on Arch Linux

[Catherine Holloway]

I've updated to the latest version of arch. I'm getting the following error when I try to build:

/home/c2hollow/rtl8723be/rtl8723be/trx.c: In function 'rtl8723be_rx_query_desc':
/home/c2hollow/rtl8723be/rtl8723be/trx.c:621:3: error: implicit declaration of function '_ieee80211_is_robust_mgmt_frame' [-Werror=implicit-function-declaration]
   if ((_ieee80211_is_robust_mgmt_frame(hdr)) &&
   ^
cc1: some warnings being treated as errors
scripts/Makefile.build:308: recipe for target '/home/c2hollow/rtl8723be/rtl8723be/trx.o' failed
make[3]: *** [/home/c2hollow/rtl8723be/rtl8723be/trx.o] Error 1
Makefile:1274: recipe for target '_module_/home/c2hollow/rtl8723be/rtl8723be' failed
make[2]: *** [_module_/home/c2hollow/rtl8723be/rtl8723be] Error 2
make[2]: Leaving directory '/usr/lib/modules/3.12.9-2-ARCH/build'
Makefile:34: recipe for target 'default' failed
make[1]: *** [default] Error 2
make[1]: Leaving directory '/home/c2hollow/rtl8723be/rtl8723be'
Makefile:27: recipe for target 'all' failed
make: *** [all] Error 2

[Catherine Holloway]

ah, should have googled more, I had the same error as here:

#2

deleted that underscore and it compiles now.