Commit `a4a88e441f`

Andrew Kelley <andrew@ziglang.org>

2022-01-29 02:31:23

glibc patch: version-gate _DYNAMIC_STACK_SIZE_SOURCE

This is a patch to glibc features.h which makes _DYNAMIC_STACK_SIZE_SOURCE undefined unless the version is >= 2.34. This feature was introduced with glibc 2.34 and without this patch, code built against these headers but then run on an older glibc will end up making a call to sysconf() that returns -1 for the value of SIGSTKSZ and MINSIGSTKSZ.

master

1 parent cbe9923

Changed files (1)

lib

libc

include

generic-glibc

features.h

@@ -222,8 +222,13 @@
 # define _DEFAULT_SOURCE	1
 # undef  _ATFILE_SOURCE
 # define _ATFILE_SOURCE	1
+
+/* Zig patch */
+# if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 34) || __GLIBC__ > 2
 # undef  _DYNAMIC_STACK_SIZE_SOURCE
 # define _DYNAMIC_STACK_SIZE_SOURCE 1
+# endif
+
 #endif
 
 /* If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,

Commit a4a88e441f

Commit `a4a88e441f`