Fix. Do not use redefine typedefs as forward declaration.

.travis.yml

@@ -6,14 +6,22 @@ matrix:
   include:
     - compiler: ": Lua51"
       env: LUA="lua 5.1"
+      os: osx
+    - compiler: ": Lua51"
+      env: LUA="lua 5.1"
+      os: linux
     - compiler: ": Lua52"
       env: LUA="lua 5.2"
+      os: linux
     - compiler: ": Lua53"
       env: LUA="lua 5.3"
+      os: linux
     - compiler: ": LuaJIT20"
       env: LUA="luajit 2.0"
+      os: linux
     - compiler: ": LuaJIT21"
       env: LUA="luajit 2.1"
+      os: linux
 
 cache:
   directories:
@@ -26,10 +34,11 @@ branches:
 
 before_install:
   - export CC=gcc
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export PATH=$PATH:~/Library/Python/2.7/bin/; fi
   - pip install --user cpp-coveralls
   - pip install --user hererocks
   - hererocks here -r^ --$LUA
-  - export PATH=$PATH:$PWD/here/bin
+  - source here/bin/activate
 
 install:
   - luarocks make rockspecs/lua-curl-scm-0.rockspec CFLAGS="-O2 -fPIC -ftest-coverage -fprofile-arcs" LIBFLAG="-shared --coverage"

src/lceasy.h

@@ -35,7 +35,12 @@ enum {
 
 #define LCURL_EASY_MAGIC 0xEA
 
+#if LCURL_CC_SUPPORT_FORWARD_TYPEDEF
 typedef struct lcurl_multi_tag lcurl_multi_t;
+#else
+struct lcurl_multi_tag;
+#define lcurl_multi_t struct lcurl_multi_tag
+#endif
 
 typedef struct lcurl_easy_tag{
   unsigned char magic;
@@ -67,4 +72,8 @@ void lcurl_easy_initlib(lua_State *L, int nup);
 
 void lcurl__easy_assign_lua(lua_State *L, lcurl_easy_t *p, lua_State *value, int assign_multi);
 
+#if !LCURL_CC_SUPPORT_FORWARD_TYPEDEF
+#undef lcurl_multi_t
+#endif
+
 #endif

src/lcmulti.h

@@ -23,6 +23,14 @@ typedef struct lcurl_multi_tag{
   lcurl_callback_t sc;
 }lcurl_multi_t;
 
+
+#if LCURL_CC_SUPPORT_FORWARD_TYPEDEF
+typedef struct lcurl_multi_tag lcurl_multi_t;
+#else
+struct lcurl_easy_tag;
+#define lcurl_easy_t struct lcurl_easy_tag
+#endif
+
 int lcurl_multi_create(lua_State *L, int error_mode);
 
 lcurl_multi_t *lcurl_getmulti_at(lua_State *L, int i);
@@ -35,4 +43,8 @@ void lcurl__multi_assign_lua(lua_State *L, lcurl_multi_t *p, lua_State *value, i
 
 CURLMcode lcurl__multi_remove_handle(lua_State *L, lcurl_multi_t *p, lcurl_easy_t *e);
 
+#if !LCURL_CC_SUPPORT_FORWARD_TYPEDEF
+#undef lcurl_easy_t 
+#endif
+
 #endif

src/lcutils.h

@@ -13,6 +13,18 @@
 
 #include "lcurl.h"
 
+#ifdef _MSC_VER
+#  define LCURL_CC_SUPPORT_FORWARD_TYPEDEF 1
+#elif defined(__STDC_VERSION__)
+#  if __STDC_VERSION__ >= 201112
+#    define LCURL_CC_SUPPORT_FORWARD_TYPEDEF 1
+#  endif
+#endif
+
+#ifndef LCURL_CC_SUPPORT_FORWARD_TYPEDEF
+#  define LCURL_CC_SUPPORT_FORWARD_TYPEDEF 0
+#endif
+
 #define LCURL_MAKE_VERSION(MIN, MAJ, PAT) ((MIN<<16) + (MAJ<<8) + PAT)
 #define LCURL_CURL_VER_GE(MIN, MAJ, PAT) (LIBCURL_VERSION_NUM >= LCURL_MAKE_VERSION(MIN, MAJ, PAT))