Building docs fails in a previously built tree

[zeha]

To reproduce, in a previously built tree:

~/pdns/docs (git)-[master] % rm dnspcap2protobuf.1 
~/pdns/docs (git)-[master] % make
make: *** No rule to make target `dnspcap2protobuf.1', needed by `all-am'.  Stop.

Running this makes the docs build work again:

~/pdns/docs (git)-[master] % cp mans/dnspcap2protobuf.1 .

But make really should just rebuild and copy the files it needs in this case.

Environment:

• GNU Make 3.81 on OS X 10.13
• automake (GNU automake) 1.15.1
• autoconf (GNU Autoconf) 2.69
• master, commit 65fa275e1464272a14d4630875f3f92a2d30b10b
• ./configure '--with-modules=' '--with-dynmodules=bind gpgsql lua pipe remote random gsqlite3' '--enable-libsodium' '--enable-unit-tests' '--enable-verbose-logging' '--enable-tools' 'CFLAGS=-ggdb -O0 -Wall' 'CXXFLAGS=-ggdb -O0 -Wall' 'PKG_CONFIG_PATH=/usr/local/opt/openssl/lib/pkgconfig:/usr/local/opt/sqlite/lib/pkgconfig' '--with-pandoc'

~/pdns (git)-[master] % grep HAVE_VIRTUALENV config.log
HAVE_VIRTUALENV_FALSE='#'
HAVE_VIRTUALENV_TRUE=''
~/pdns (git)-[master] % grep HAVE_PROTO config.log
| #define HAVE_PROTOBUF 1
| #define HAVE_PROTOBUF 1
HAVE_PROTOBUF_FALSE='#'
HAVE_PROTOBUF_TRUE=''
HAVE_PROTOC_FALSE='#'
HAVE_PROTOC_TRUE=''
#define HAVE_PROTOBUF 1

[zeha]

I think I ended up in this situation by having a built-tree and running git pull :)

[pieterlexis]

I think I have seen things like this before. It has to do with how sphinx builds manpages

[zeha]

I think make did not even invoke sphinx for this.

[Habbie]

I have rm -f docs/pdns_server.1 as part of my 'configure' script as a workaround.