[root@ast asterisk-addons]# make
make -C format_mp3 all
make[1]: Entering directory `/usr/src/asterisk-addons/format_mp3'
gcc -pipe  -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations   -D_REENTRANT -D_GNU_SOURCE  -O6    -c -o common.o common.c
gcc -pipe  -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations   -D_REENTRANT -D_GNU_SOURCE  -O6    -c -o dct64_i386.o dct64_i386.c
gcc -pipe  -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations   -D_REENTRANT -D_GNU_SOURCE  -O6    -c -o decode_ntom.o decode_ntom.c
gcc -pipe  -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations   -D_REENTRANT -D_GNU_SOURCE  -O6    -c -o layer3.o layer3.c
gcc -pipe  -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations   -D_REENTRANT -D_GNU_SOURCE  -O6    -c -o tabinit.o tabinit.c
gcc -pipe  -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations   -D_REENTRANT -D_GNU_SOURCE  -O6    -c -o interface.o interface.c
gcc -pipe  -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations   -D_REENTRANT -D_GNU_SOURCE  -O6    -c -o format_mp3.o format_mp3.c
format_mp3.c:71: warning: type defaults to `int' in declaration of `AST_MUTEX_DEFINE_STATIC'
format_mp3.c:71: warning: parameter names (without types) in function declaration
format_mp3.c:71: warning: data definition has no type or storage class
format_mp3.c: In function `mp3_open':
format_mp3.c:111: `mp3_lock' undeclared (first use in this function)
format_mp3.c:111: (Each undeclared identifier is reported only once
format_mp3.c:111: for each function it appears in.)
format_mp3.c: In function `mp3_close':
format_mp3.c:136: `mp3_lock' undeclared (first use in this function)
format_mp3.c: In function `usecount':
format_mp3.c:344: `mp3_lock' undeclared (first use in this function)
make[1]: *** [format_mp3.o] Error 1
make[1]: Leaving directory `/usr/src/asterisk-addons/format_mp3'
make: *** [format_mp3/format_mp3.so] Error 2
[root@ast asterisk-addons]#