check library versions against header symbols in static initialization function

fixes #580

2 files changed, 29 insertions, 0 deletions

diff --git a/platform/default/http_request_baton_curl.cpp b/platform/default/http_request_baton_curl.cpp
index b8b4bac5fd..02e9497c9e 100644
--- a/platform/default/http_request_baton_curl.cpp
+++ b/platform/default/http_request_baton_curl.cpp
@@ -1,6 +1,7 @@
 #include <mbgl/storage/http_request_baton.hpp>
 #include <mbgl/util/uv-messenger.h>
 #include <mbgl/util/time.hpp>
+#include <mbgl/util/string.hpp>
 
 #include <uv.h>
 #include <curl/curl.h>
@@ -9,6 +10,20 @@
 #include <cassert>
 #include <cstring>
 
+
+// Check curl library version.
+const static bool curl_version_check = []() {
+    const auto version = curl_version_info(CURLVERSION_NOW);
+    if (version->version_num != LIBCURL_VERSION_NUM) {
+        throw std::runtime_error(mbgl::util::sprintf<96>(
+            "libcurl version mismatch: headers report %d.%d.%d, but library reports %d.%d.%d",
+            (LIBCURL_VERSION_NUM >> 16) & 0xFF, (LIBCURL_VERSION_NUM >> 8) & 0xFF, LIBCURL_VERSION_NUM & 0xFF,
+            (version->version_num >> 16) & 0xFF, (version->version_num >> 8) & 0xFF, version->version_num & 0xFF));
+    }
+    return true;
+}();
+
+
 // This file contains code from http://curl.haxx.se/libcurl/c/multi-uv.html:
 
 /***************************************************************************
diff --git a/platform/default/image.cpp b/platform/default/image.cpp
index 68d1786913..bf119fee05 100644
--- a/platform/default/image.cpp
+++ b/platform/default/image.cpp
@@ -1,4 +1,5 @@
 #include <mbgl/util/image.hpp>
+#include <mbgl/util/string.hpp>
 
 #include <png.h>
 
@@ -8,6 +9,19 @@
 #include <cstring>
 
 
+// Check png library version.
+const static bool png_version_check = []() {
+    const png_uint_32 version = png_access_version_number();
+    if (version != PNG_LIBPNG_VER) {
+        throw std::runtime_error(mbgl::util::sprintf<96>(
+            "libpng version mismatch: headers report %d.%d.%d, but library reports %d.%d.%d",
+            PNG_LIBPNG_VER / 10000, (PNG_LIBPNG_VER / 100) % 100, PNG_LIBPNG_VER % 100,
+            version / 10000, (version / 100) % 100, version % 100));
+    }
+    return true;
+}();
+
+
 namespace mbgl {
 namespace util {