Hey,
vec.h is part of another git repo, which is included in this repo as a git submodule.
Did you init the git submodules, after cloning the repo?
As described here: GitHub - f34nk/modest_ex: Elixir library to do pipeable transformations on html strings (with CSS selectors) · GitHub
I hope this helps.
Oh, I see.
The submodules are pinned to the latest Modest master.
And, since I stopped maintaining modest_ex years ago, this is not working anymore.
However, I actually forked Modest back then, and based development on this fork.
First, I would recommend to change the Modest submodule to point to the fork:
Please make this change to .gitmodules.
diff --git a/.gitmodules b/.gitmodules
index ed877d0..189ffb9 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,6 @@
[submodule "libs/Modest"]
path = libs/Modest
- url = https://github.com/lexborisov/Modest.git
+ url = https://github.com/f34nk/Modest.git
[submodule "libs/vec"]
path = libs/vec
url = https://github.com/rxi/vec.git
Then
cd libs/Modest
git checkout 87d75c95854d7d97a12ba8d78a4c7f553a4eb945
This is the last commit, where I introduced my changes:
https://github.com/f34nk/Modest/commit/87d75c95854d7d97a12ba8d78a4c7f553a4eb945
But if you run ./configure I still get errors.
source/mycss/selectors/function_parser.c:469:57: error: cast to smaller integer type 'mycss_selectors_function_drop_type_t' (aka 'enum mycss_selectors_function_drop_type') from 'void *' [-Werror,-Wvoid-pointer-to-enum-cast]
mycss_selectors_function_drop_type_t drop_val = mycss_selector_value_drop(selector->value);
To solve this, you need to change libs/Modest/Makefile.cfg and add -Wno-int-to-void-pointer-cast -Wno-void-pointer-to-enum-cast.
diff --git a/Makefile.cfg b/Makefile.cfg
index 92d425d..30c2ab1 100644
--- a/Makefile.cfg
+++ b/Makefile.cfg
@@ -12,7 +12,7 @@ PROJECT_VERSION_STRING := $(PROJECT_VERSION_MAJOR).$(PROJECT_VERSION_MINOR).$(PR
#********************
# Flags
#***************
-MODEST_CFLAGS ?= -Wall -Werror -pipe -pedantic
+MODEST_CFLAGS ?= -Wall -Werror -pipe -pedantic -Wno-int-to-void-pointer-cast -Wno-void-pointer-to-enum-cast
MODEST_LFLAGS ?=
After that, run ./clean and then ./configure - should compile Modest without errors.
Wow, thank you so much for the detailed response! Your directions did enable a clean compile right up until near the end:
/Users/coldham/src/elixir/modest_ex/target/modest_worker/utils/eterm_vec.h:22:10: fatal error: 'erl_interface.h' file not found
#include "erl_interface.h"
This appears to be related to recent deprecations and removal of the older erl_interface components. I might be able to make some more progress here. Simply removing #include "erl_interface.h" changes the errors to
error: unknown type name 'ETERM'
typedef vec_t(ETERM*) vec_eterm_t;
as well as lots of missing function definitions like erl_iolist_to_string, erl_free, erl_print_term and so forth.
I’m having trouble finding documentation or examples for migrating from the older erl_interface APIs to the newest ei APIs. I know erl_interface was deprecated a long time ago and only recently removed.
(Uff, this project is really outdated and obviously, I did not pin any versions.)
I think I used erlang 19.
But looking at the travis file, it might also work with others.
https://github.com/f34nk/modest_ex/blob/master/.travis.yml
Then you need to export ERLANG_PATH variable.
As used here:
https://github.com/f34nk/modest_ex/blob/master/target/modest_worker/CMakeLists.txt#L5
Oh look.
It’s in the README under target-dependencies
So would you recommend focusing on
with
https://github.com/lexbor/lexbor
as the backend instead? I want to parse an HTML document, fixup some links internally, and write it back out.
Good news everyone 
I finally had time to follow up and start migrating ModestEx to use Lexbor C Library as a backend.
You can follow progress here:
Please stay tuned 
