I'm unable to compile MariaDB under debian 5.0.

When running "BUILD/autorun.sh" i'm getting these messages:
BUILD/Makefile.am:88: `%'-style pattern rules are a GNU make extension
Docs/Makefile.am:42: `%'-style pattern rules are a GNU make extension
client/Makefile.am:127: `%'-style pattern rules are a GNU make extension
client/Makefile.am:73: compiling `mysqlimport.c' with per-target flags requires `AM_PROG_CC_C_O' in `configure.in'
cmd-line-utils/Makefile.am:24: `%'-style pattern rules are a GNU make extension
cmd-line-utils/readline/Makefile.am:37: `%'-style pattern rules are a GNU make extension
dbug/Makefile.am:70: `%'-style pattern rules are a GNU make extension
extra/Makefile.am:60: `%'-style pattern rules are a GNU make extension
extra/yassl/Makefile.am:5: `%'-style pattern rules are a GNU make extension
extra/yassl/src/Makefile.am:7: wildcard ../include/*.hpp: non-POSIX variable name
extra/yassl/src/Makefile.am:7: (probably a GNU make extension)
extra/yassl/src/Makefile.am:7: wildcard ../include/openssl/*.h: non-POSIX variable name
extra/yassl/src/Makefile.am:7: (probably a GNU make extension)
extra/yassl/src/Makefile.am:11: `%'-style pattern rules are a GNU make extension
extra/yassl/taocrypt/Makefile.am:2: wildcard mySTL/*.hpp: non-POSIX variable name
extra/yassl/taocrypt/Makefile.am:2: (probably a GNU make extension)
extra/yassl/taocrypt/Makefile.am:5: `%'-style pattern rules are a GNU make extension
extra/yassl/taocrypt/benchmark/Makefile.am:9: `%'-style pattern rules are a GNU make extension
extra/yassl/taocrypt/src/Makefile.am:13: wildcard ../include/*.hpp: non-POSIX variable name
extra/yassl/taocrypt/src/Makefile.am:13: (probably a GNU make extension)
extra/yassl/taocrypt/src/Makefile.am:16: `%'-style pattern rules are a GNU make extension
extra/yassl/taocrypt/test/Makefile.am:9: `%'-style pattern rules are a GNU make extension
[...]

Lines in Makefiles are related to BitKeeper.

I found that that was a old bug of MySQL.
http://bugs.mysql.com/bug.php?id=30708

Is bitkeeper really used?