Since libSDL-1.2.11 all programs using SDL fail to compile complaining about an unresolved refetence to 'BlitRGBtoRGBPixelAlphaMMX3DNOW'. In file src/video/SDL_blit_A.c lines 2817 - 2829 there's an autodetection for my CPU's capabilities: { if(SDL_Has3DNow()) return BlitRGBtoRGBPixelAlphaMMX3DNOW; if(SDL_HasMMX()) return BlitRGBtoRGBPixelAlphaMMX; } where 'if(SDL_Has3DNow())' seems to return true, which is clearly wrong: cat /proc/cpuinfo | grep ^flags returns 'fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc pni monitor vmx est tm2 xtpr' Hacking the code to always return the non-3dnow function BlitRGBtoRGBPixelAlphaMMX solved my errors. There's also some other guy having the same problem: http://forums.gentoo.org/viewtopic-p-3588281.html
*** Bug 144828 has been marked as a duplicate of this bug. ***
i'm pretty sure the bug here is that BlitRGBtoRGBPixelAlphaMMX3DNOW is declared as inline ... it has nothing to do with misdetection of CPU as the failure you're seeing is at *linktime* and that code is not executed until *runtime* so try editing src/video/SDL_blit_A.c, go to the definition of BlitRGBtoRGBPixelAlphaMMX3DNOW(), and remove the 'inline' keyword
Removing the inline keyword did the job, both sdl-image and quake2-icculus do emerge now without errors.
that doesnt really satisfy my curiosity as to why you are seeing this problem that function is declared static so the symbol should not be exported thus linking against it shouldnt be a problem ... can you post: `emerge -pv libsdl`
[ebuild R ] media-libs/libsdl-1.2.11 USE="X aalib alsa esd fbcon libcaca opengl oss xinerama xv -arts -dga -directfb -ggi -nas -noaudio -noflagstrip -nojoystick -novideo -svga" 0 kB CFLAGS="-O2 -fomit-frame-pointer -march=prescott -pipe" CXXFLAGS="-O2 -fomit-frame-pointer -march=prescott -pipe -fvisibility-inlines-hidden" gcc (GCC) 4.1.1 (Gentoo 4.1.1-r1) I reemerged it without changes to find out more about it. # objdump -T libSDL-1.2.so.0.11.0 | fuzzygrep -l3 3DNOW 00011497 g DF .text 000001ad Base SDL_iconv_string 00005fe3 g DF .text 00000029 Base SDL_ClearError 00000000 D *UND* 00000000 BlitRGBtoRGBPixelAlphaMMX3DNOW 0001034c g DF .text 0000003c Base SDL_ReadBE16 00000000 DF *UND* 000001ba GLIBC_2.1 fclose
oh well, we'll just call it a day ... no time to investigate this further ;(
