Added -Wconversion to compiler options

src/common/io.c

@@ -430,7 +430,7 @@ void ffAppendFDContent(int fd, FFstrbuf* buffer)
         (readed = read(fd, buffer->chars + buffer->length, free)) > 0 &&
         (uint32_t) readed == free
     ) {
-        buffer->length += readed;
+        buffer->length += (uint32_t) readed;
         ffStrbufEnsureCapacity(buffer, (buffer->allocated * 2) - 1); // -1 for null terminator
         free = ffStrbufGetFree(buffer);
     }

src/common/parsing.c

@@ -194,7 +194,7 @@ static void fontPangoParseWord(const char** data, FFfont* font, FFstrbuf* altern
     while(**data != ' ' && **data != '\t' && **data != ',' && **data != '\0' && **data != '`' && **data != '\\')
         ++(*data);
 
-    uint32_t wordLength = *data - wordStart;
+    uint32_t wordLength = (uint32_t) (*data - wordStart);
     if(wordLength == 0)
         return;