g++: error: unrecognized command line option ‘-msse2’

[Nehemoth]

Hi there.
Trying this for first time but I understand a little big about CPU architecture.
So I'm following this tutorial and I cloned this repository.
So when I need to compile on my Raspberry Pi 3 I'm using this command
make -f makefile.unix xCPUARCH=arm7l -j3

But I received this error:
g++ -c -O2 -pthread -Wall -Wextra -Wformat -Wformat-security -Wno-unused-parameter -g -DBOOST_SPIRIT_THREADSAFE -I/root/magi/src -I/root/magi/src/hash -I/root/magi/src/obj -DUSE_UPNP=0 -DUSE_IPV6=1 -I/root/magi/src/leveldb/include -I/root/magi/src/leveldb/helpers -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -D_FORTIFY_SOURCE=2 -msse2 -MMD -MF obj/alert.d -o obj/alert.o alert.cpp /bin/sh ../share/genbuild.sh obj/build.h g++ -c -O2 -pthread -Wall -Wextra -Wformat -Wformat-security -Wno-unused-parameter -g -DBOOST_SPIRIT_THREADSAFE -I/root/magi/src -I/root/magi/src/hash -I/root/magi/src/obj -DUSE_UPNP=0 -DUSE_IPV6=1 -I/root/magi/src/leveldb/include -I/root/magi/src/leveldb/helpers -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -D_FORTIFY_SOURCE=2 -msse2 -MMD -MF obj/checkpoints.d -o obj/checkpoints.o checkpoints.cpp g++: error: unrecognized command line option ‘-msse2’ g++: error: unrecognized command line option ‘-msse2’ makefile.unix:187: recipe for target 'obj/checkpoints.o' failed make: *** [obj/checkpoints.o] Error 1 make: *** Waiting for unfinished jobs.... makefile.unix:187: recipe for target 'obj/alert.o' failed make: *** [obj/alert.o] Error 1

Obviously for some reason during the compilation it's trying to using the SSE Instructions which of course the ARM platform doesn't support

So I went to see the makefile.unix File and I can clearly see

If we have an ARM device, we can't use SSE2 instructions, so don't try to use them

xCPUARCH is passed in as a define (xCPUARCH=armv7l, xCPUARCH=armv6l)

ifeq ($(xCPUARCH),armv7l)
else ifeq ($(xCPUARCH),armv6l)
else
xCXXFLAGS+=-msse2
endif

So I shouldn't be receiving this error.

What can I change to force make not to use msse2

Regards

[Nehemoth]

So with the help of a friend programmer we found out the error:
The command it's wrong.
Intead of: make -f makefile.unix xCPUARCH=arm7l -j3
should be: make -f makefile.unix xCPUARCH=arm**v**7l -j3

That v makes the whole world.

Thank you

[headstrong83]

Hi,

i tried make -f makefile.unix xCPUARCH=armv71 -j3 or -j4, but i bacome a simmilar error.

g++: error: unrecognized command line option `-msse2´
makefile.unix:186: recipe for target ´obj/alert.o faild
make: *** [obj/alert.o] Error 1
make *** Waiting for unfinishedjobs...
g++: error: unrecognized command line option ´-msse2´
makefile.unix:186:recipe for target ´obj/checkpoints.o´ failed
make: *** [obj/checkpoints.o] Error 1

What can i do, or have ich forgot some think :(.

Regards

[DoBi]

@headstrong83
You have to use xCPUARCH=armv7l instead of armv71. Then the -msse2 flag is not used and it should compile.

@Nehemoth
I think your issue is solved, isn't it? 😉

[aaronmee]

@Nehemoth could you close this issue?

[Nehemoth]

Closed as requested.