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Reviewed GLFW compilation requirements on Linux: _GNU_SOURCE

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Reasons to NOT define `_GNU_SOURCE`:

 - access to lots of nonstandard GNU/Linux extension functions
 - access to traditional functions which were omitted from the POSIX standard (often for good reason, such as being replaced with better alternatives, or being tied to particular legacy implementations)
 - access to low-level functions that cannot be portable, but that you sometimes need for implementing system utilities like mount, ifconfig, etc.
 - broken behavior for lots of POSIX-specified functions, where the GNU folks disagreed with the standards committee on how the functions should behave and decided to do their own thing.
This commit is contained in:
Ray
2022-08-28 15:48:12 +02:00
parent be2328f848
commit 7f5567eec0
3 changed files with 1 additions and 2 deletions
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1
src/external/glfw/src/posix_poll.c vendored
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@ -29,7 +29,6 @@
#define _GNU_SOURCE
#include "internal.h"
#include "posix_poll.h" // @raysan5: Required for poll(), ppoll()
#include <signal.h>
#include <time.h>

1
src/external/glfw/src/posix_poll.h vendored
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@ -26,7 +26,6 @@
// It is fine to use C99 in this file because it will not be built with VS
//========================================================================
#define _GNU_SOURCE // @raysan5: Required for ppoll()
#include <poll.h>
GLFWbool _glfwPollPOSIX(struct pollfd* fds, nfds_t count, double* timeout);