From 2d22d6061e2c4d394bddebd7f133a56b356f21fb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Chmielowski?= <pchmielowski@process-one.net>
Date: Tue, 20 Oct 2015 15:22:39 +0200
Subject: [PATCH] Pass {C,CPP,LD}FLAGS used in main ./configure call to
 invocations from deps

---
 configure.ac        | 3 +++
 rebar.config.script | 7 ++++++-
 vars.config.in      | 4 ++++
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index d30a490d0..c7e7bcd4a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -273,5 +273,8 @@ AC_SUBST(iconv)
 AC_SUBST(debug)
 AC_SUBST(lager)
 AC_SUBST(tools)
+AC_SUBST(CFLAGS)
+AC_SUBST(CPPFLAGS)
+AC_SUBST(LDFLAGS)
 
 AC_OUTPUT
diff --git a/rebar.config.script b/rebar.config.script
index 633433c19..e0a8923cf 100644
--- a/rebar.config.script
+++ b/rebar.config.script
@@ -66,10 +66,15 @@ Deps = [{p1_cache_tab, ".*", {git, "https://github.com/processone/cache_tab"}},
         {oauth2, ".*", {git, "https://github.com/prefiks/oauth2.git"}},
         {xmlrpc, ".*", {git, "https://github.com/rds13/xmlrpc.git"}}],
 
+CFLags = proplists:get_value(cflags, Cfg, ""),
+CPPFLags = proplists:get_value(cppflags, Cfg, ""),
+LDFLags = proplists:get_value(ldflags, Cfg, ""),
+
 ConfigureCmd = fun(Pkg, Flags) ->
                        {'get-deps',
                         "sh -c 'cd deps/" ++ Pkg ++
-                            " && ./configure" ++ Flags ++ "'"}
+                            " && CFLAGS=\""++ CFLags ++"\" CPPFLAGS=\""++ CPPFLags ++"\" LDFLAGS=\""++ LDFLags ++"\"" ++
+                            " ./configure" ++ Flags ++ "'"}
                end,
 
 XMLFlags = lists:foldl(
diff --git a/vars.config.in b/vars.config.in
index 2cd5d8e9a..69cc516f7 100644
--- a/vars.config.in
+++ b/vars.config.in
@@ -47,6 +47,10 @@
 {libdir, "{{release_dir}}/lib"}.
 {docdir, "{{release_dir}}/doc"}.
 
+{ldflags, "@LDFLAGS@"}.
+{cflags, "@CFLAGS@"}.
+{cppflags, "@CPPFLAGS@"}.
+
 %% Local Variables:
 %% mode: erlang
 %% End: