- What steps will reproduce the problem?
The software compilation with the following command:
python ./setup.py build
I got the following error:
Error: undefined reference to `floorf'
Full output:
gcc -pthread -shared -Wl,--as-needed -Wl,--no-undefined -Wl,-z,relro -Wl,-O1
-Wl,--build-id -Wl,--enable-new-dtags build/temp.linux-i686-2.7/pyffmpeg.o
-L/opt/ffmpeg/lib -L/usr/lib -lavformat -lavcodec -lavutil -lswscale
-lpython2.7 -o build/lib.linux-i686-2.7/pyffmpeg.so
build/temp.linux-i686-2.7/pyffmpeg.o: In function
`__pyx_pf_8pyffmpeg_10AudioTrack_1reset_tps':
/home/varenne/jmvp/aa/pyffmpeg-2.1beta/pyffmpeg.c:5193: undefined reference to
`floorf'
build/temp.linux-i686-2.7/pyffmpeg.o: In function
`__pyx_pf_8pyffmpeg_10AudioTrack_init':
/home/varenne/jmvp/aa/pyffmpeg-2.1beta/pyffmpeg.c:4910: undefined reference to
`floorf'
collect2: ld a retourné 1 code d'état d'exécution
build/temp.linux-i686-2.7/pyffmpeg.o: In function
`__pyx_pf_8pyffmpeg_10AudioTrack_1reset_tps':
/home/varenne/jmvp/aa/pyffmpeg-2.1beta/pyffmpeg.c:5193: undefined reference to
`floorf'
build/temp.linux-i686-2.7/pyffmpeg.o: In function
`__pyx_pf_8pyffmpeg_10AudioTrack_init':
/home/varenne/jmvp/aa/pyffmpeg-2.1beta/pyffmpeg.c:4910: undefined reference to
`floorf'
collect2: ld a retourné 1 code d'état d'exécution
error: Command "gcc -pthread -shared -Wl,--as-needed -Wl,--no-undefined
-Wl,-z,relro -Wl,-O1 -Wl,--build-id -Wl,--enable-new-dtags
build/temp.linux-i686-2.7/pyffmpeg.o -L/opt/ffmpeg/lib -L/usr/lib -lavformat
-lavcodec -lavutil -lswscale -lpython2.7 -o
build/lib.linux-i686-2.7/pyffmpeg.so" failed with exit status 1
- What is the expected output? What do you see instead?
After investigation on Internet, it appears that the "floorf" symbol is defined
in a "libm.so" library. Then, the "-lm" argument shall be added to the "gcc"
command. To fix it, you can add the following lines in the "setup.py" file:
if platform.startswith("linux"):
libs += [ 'm' ]
- What version of the product are you using? On what operating system?
"pyffmpeg-2.1beta.tar.gz"
"Linux Mageia 1" 32 bits
- Please provide any additional information below.
Original issue reported on code.google.com by 000JeanM...@gmail.com on 4 May 2012 at 3:23
Original issue reported on code.google.com by
000JeanM...@gmail.com
on 4 May 2012 at 3:23