fatal error: typedef redefinition with different types on OSX

[Algorithmus]

As explained in this issue, it seems OSX already includes GLsizeiptr and a few others. The same problem happens with glad.h as well. The workaround appears to be to use long instead of ptrdiff_t. Here's another example.

[Dav1dde]

Thanks, I will have to look into this and why these types already exist...

[BastiaanOlij]

Ran into this issue as well, any updates on this?

[Dav1dde]

Trying to look into this issue this weekend, hopefully I can find a way to reproduce it without having access to an OSX instance (I assume just getting the OSX headers is enough).

[BastiaanOlij]

Cheers :)

[Dav1dde]

The fix looks like this:

#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060)
typedef long GLintptr;
#else
typedef ptrdiff_t GLintptr;
#endif
#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060)
typedef long GLsizeiptr;
#else
typedef ptrdiff_t GLsizeiptr;
#endif
typedef int64_t GLint64;
typedef uint64_t GLuint64;
#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060)
typedef long GLintptrARB;
#else
typedef ptrdiff_t GLintptrARB;
#endif
#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060)
typedef long GLsizeiptrARB;
#else
typedef ptrdiff_t GLsizeiptrARB;
#endif

OSX Versions > 10.6 (starting with 10.7) only have 64 bit support, unfortunately I cannot test this on an OSX device, please report back if it actually works as intended.

After that I will release a new version and update the online generator.

[Algorithmus]

I put those changes in glad.h. Works for me.

[Dav1dde]

Awesome, thanks!