Protect declaration of LgdImageCreateFromPng* with GD_PNG feature test macro #8
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…t macro If GD_PNG is false, neither LgdImageCreateFromPng nor LgdImageCreateFromPngPtr would be implemented. We should avoid declaring them too.
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The corresponding patch could be applied to existing code: diff --git a/luagd.c b/luagd.c
index 9730ff7..98bc03e 100644
--- a/luagd.c
+++ b/luagd.c
@@ -2168,8 +2168,10 @@ static const luaL_Reg LgdFunctions[] =
{ "createFromGif", LgdImageCreateFromGif },
{ "createFromGifStr", LgdImageCreateFromGifPtr },
#endif
+#ifdef GD_PNG
{ "createFromPng", LgdImageCreateFromPng },
{ "createFromPngStr", LgdImageCreateFromPngPtr },
+#endif
{ "createFromGd", LgdImageCreateFromGd },
{ "createFromGdStr", LgdImageCreateFromGdPtr },
{ "createFromGd2", LgdImageCreateFromGd2 }, |
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If GD_PNG is false, neither LgdImageCreateFromPng nor
LgdImageCreateFromPngPtr would be implemented.
See the implementation in https://github.com/ittner/lua-gd/blob/master/luagd.c#L417
We should avoid declaring them too.