Linux compilation fails? about ppsspp HOT 4 CLOSED

ccmake CMakeList.txt
Press T to Advanced Mode
Add -msse2 manually to CMAKE_C_FLAGS and CMAKE_CXX_FLAGS
worked as workaround, but then:

/work/git/ppsspp/Common/CPUDetect.cpp: In member function 'void CPUInfo::Detect()':
/work/git/ppsspp/Common/CPUDetect.cpp:176:8: warning: variable 'cmp_legacy' set but not used [-Wunused-but-set-variable]
/work/git/ppsspp/Common/CPUDetect.cpp: In function 'void do_cpuid(unsigned int_, unsigned int_, unsigned int_, unsigned int_)':
/work/git/ppsspp/Common/CPUDetect.cpp:65:4: error: PIC register clobbered by 'ebx' in 'asm'

from ppsspp.

I think the issue is there because you're the first to build it for 32-bit Linux x86 - most people run 64-bit these days, and Android, while 32-bit, is on ARM and doesn't build this x86-specific CPU detection code.

Anyway, you can try removing the PIC flag for such builds, which should fix this issue. PIC code (position-independent) is slow on 32-bit anyway.

from ppsspp.

Uh, maybe I don't know how to turn off -fPIC.
cd SDL;grep -R PIC *
Common/CMakeFiles/common.dir/flags.make:(snip) <- this is generated file...

Off topc: well, this server has AthlonX2 (64bit CPU) but disk image is copied from old PC's HDD whose CPU is cerelon, forcing to use i386 mode...

from ppsspp.

Actually, should probably fix that piece of inline assembler to be PIC compatible anyway, it will be needed on Android x86 (although there we maybe don't need to detect cpu as all x86 android CPUs are fairly modern...)

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