Bug 924131

Summary:	libvpx compile failure
Product:	Gentoo Linux	Reporter:	Arnim Eijkhoudt <penguin>
Component:	Current packages	Assignee:	Gentoo Linux bug wranglers <bug-wranglers>
Status:	RESOLVED INVALID
Severity:	normal	CC:	ionen, penguin
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	emerge --info

Description Arnim Eijkhoudt 2024-02-09 07:03:36 UTC

libvpx fails to compile on ~x86_64 

Reproducible: Always

Steps to Reproduce:
1. emerge libvpx
2.
3.
Actual Results:  
Failed compilation

Expected Results:  
Successful compilation

Specific point of compile failure:

x86_64-pc-linux-gnu-g++ -L. -Wl,-O1 -Wl,--as-needed -m64 -o examples/vp9_spatial_svc_encoder args.c.o ivfenc.c.o y4minput.c.o tools_common.c.o video_writer.c.o vpxstats.c.o examples/svc_encodeframe.c.o examples/vp9_spatial_svc_encoder.c.o -lvpx -lm -lpthread
/usr/lib/gcc/x86_64-pc-linux-gnu/13/../../../../x86_64-pc-linux-gnu/bin/ld: examples/vp9_spatial_svc_encoder.c.o: in function `sum_squares_visible':
vp9_spatial_svc_encoder.c:(.text+0xd98): undefined reference to `num_4x4_blocks_wide_lookup'
/usr/lib/gcc/x86_64-pc-linux-gnu/13/../../../../x86_64-pc-linux-gnu/bin/ld: vp9_spatial_svc_encoder.c:(.text+0xdaf): undefined reference to `num_4x4_blocks_high_lookup'
/usr/lib/gcc/x86_64-pc-linux-gnu/13/../../../../x86_64-pc-linux-gnu/bin/ld: vp9_spatial_svc_encoder.c:(.text+0xdc6): undefined reference to `num_4x4_blocks_wide_lookup'
/usr/lib/gcc/x86_64-pc-linux-gnu/13/../../../../x86_64-pc-linux-gnu/bin/ld: vp9_spatial_svc_encoder.c:(.text+0xddd): undefined reference to `num_4x4_blocks_high_lookup'
/usr/lib/gcc/x86_64-pc-linux-gnu/13/../../../../x86_64-pc-linux-gnu/bin/ld: vp9_spatial_svc_encoder.c:(.text+0xe5c): undefined reference to `vpx_sum_squares_2d_i16_sse2'
/usr/lib/gcc/x86_64-pc-linux-gnu/13/../../../../x86_64-pc-linux-gnu/bin/ld: vp9_spatial_svc_encoder.c:(.text+0xef0): undefined reference to `vpx_sum_squares_2d_i16_sse2'
collect2: error: ld returned 1 exit status
make[1]: *** [/var/tmp/portage/media-libs/libvpx-1.14.0/work/libvpx-1.14.0/examples.mk:338: examples/vp9_spatial_svc_encoder] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:17: .DEFAULT] Error 2
 * ERROR: media-libs/libvpx-1.14.0::gentoo failed (compile phase):
 *   emake failed

Comment 1 Arnim Eijkhoudt 2024-02-09 07:03:56 UTC

Created attachment 884577 [details]
emerge --info

Comment 2 Ionen Wolkens gentoo-dev

2024-02-09 07:14:43 UTC

>CFLAGS="-march=znver2 --param=l1-cache-line-size=64 --param=l1-cache-size=32 --param=l2-cache-size=512"
Seems it doesn't react well to being compiled without optimizations, try adding -O2 to your CFLAGS and CXXFLAGS.

Comment 3 Arnim Eijkhoudt 2024-02-09 07:43:50 UTC

Well I'll be... 

That solved it, thank you. Never expected that to be a possible cause of failure.