libc/db: Add an include guard.
authorSascha Wildner <saw@online.de>
Sun, 7 Apr 2019 15:46:06 +0000 (17:46 +0200)
committerSascha Wildner <saw@online.de>
Sun, 7 Apr 2019 15:46:06 +0000 (17:46 +0200)
commit724ac6b9dd8bc25fc37a6633244827d8e2f20d6f
treeade479f8ad79f68f4c9d141ed3c8a4e16548c9e9
parent94386080e15faf67dee24e9cf98deb127df1da5b
libc/db: Add an include guard.

joerg had added one back in 2005 in 871020e7804af32d9a544b48cd250fa4
but it was overwritten 8 years later in another sync with FreeBSD in
abd448c3b2d3508465e48d9cfdb163ef88fc242e.

This fixes a number of -Wredundant-decls which we'll hopefully enable
by default in the future.
lib/libc/db/btree/extern.h