Build problem on Ubuntu

[jdeisenberg]

Attempting to do a mix compile, and get this:

david@ubuntu:~/ex_doc$ mix compile
git submodule update --init
Submodule 'sundown' () registered for path 'sundown'
From git://github.com/vmg/sundown
 * [new branch]      gh-pages   -> origin/gh-pages
 * [new branch]      master     -> origin/master
Submodule path 'sundown': checked out '975df6267cbc798ecfcb6948364cd978dc2bf36f'
cd sundown && make
make[1]: Entering directory `/home/david/ex_doc/sundown'
gcc -c -g -O3 -fPIC -Wall -Werror -Wsign-compare -Isrc -Ihtml   -c -o src/markdown.o src/markdown.c
gcc -c -g -O3 -fPIC -Wall -Werror -Wsign-compare -Isrc -Ihtml   -c -o src/stack.o src/stack.c
gcc -c -g -O3 -fPIC -Wall -Werror -Wsign-compare -Isrc -Ihtml   -c -o src/buffer.o src/buffer.c
gcc -c -g -O3 -fPIC -Wall -Werror -Wsign-compare -Isrc -Ihtml   -c -o src/autolink.o src/autolink.c
gcc -c -g -O3 -fPIC -Wall -Werror -Wsign-compare -Isrc -Ihtml   -c -o html/html.o html/html.c
gcc -c -g -O3 -fPIC -Wall -Werror -Wsign-compare -Isrc -Ihtml   -c -o html/html_smartypants.o html/html_smartypants.c
gcc -c -g -O3 -fPIC -Wall -Werror -Wsign-compare -Isrc -Ihtml   -c -o html/houdini_html_e.o html/houdini_html_e.c
gcc -c -g -O3 -fPIC -Wall -Werror -Wsign-compare -Isrc -Ihtml   -c -o html/houdini_href_e.o html/houdini_href_e.c
gcc -g -O3 -Wall -Werror  -shared -Wl src/markdown.o src/stack.o src/buffer.o src/autolink.o html/html.o html/html_smartypants.o html/houdini_html_e.o html/houdini_href_e.o -o libsundown.so.1
gcc: error: unrecognized command line option ‘-Wl’
make[1]: *** [libsundown.so.1] Error 1
make[1]: Leaving directory `/home/david/ex_doc/sundown'
make: *** [sundown/libsundown.so] Error 2

gcc -version gives me this:

gcc (Ubuntu/Linaro 4.7.2-2ubuntu1) 4.7.2

[ericmj]

Related to vmg/sundown#133 ?

[jdeisenberg]

Yes. It apparently only happens after sundown is downloaded from github, so it's not something that I can put into the ex_doc repository to fix. The workaround is to do the compile, let it fail, then go in and manually correct the Makefile.

[alco]

@josevalim Is there a way to add a paragraph about this workaround to mix? Kind of like what Homebrew does when it mentions caveats.

λ brew info ruby  
ruby: stable 2.0.0-p0, HEAD
http://www.ruby-lang.org/en/
Not installed
https://github.com/mxcl/homebrew/commits/master/Library/Formula/ruby.rb
==> Dependencies
...
==> Options
...
==> Caveats
NOTE: By default, gem installed binaries will be placed into:
  /usr/local/opt/ruby/bin

You may want to add this to your PATH.

[josevalim]

Let's just print something before we compile the C code in the mix task?

[josevalim]

I have forked the sundown repository and changed ex_doc to point to my fork without the -Wl option.