From: Priyanshu Singh <priyanshu2282@gmail.com>
Date: Wed, 14 Jan 2026 17:47:55 +0000 (+0530)
Subject: gh-143632: Disable PR_SET_VMA_ANON_NAME on musl libc (gh-143730)
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=14f96a8d8f2aadf1a71c0ba39e87baddd0adda40;p=thirdparty%2FPython%2Fcpython.git

gh-143632: Disable PR_SET_VMA_ANON_NAME on musl libc (gh-143730)
---

diff --git a/configure b/configure
index 411bc1a23226..9d7fe6c52a41 100755
--- a/configure
+++ b/configure
@@ -23966,6 +23966,9 @@ printf "%s\n" "#define HAVE_UT_NAMESIZE 1" >>confdefs.h
 
 fi
 
+# musl libc redefines struct prctl_mm_map and conflicts with linux/prctl.h
+if test "$ac_cv_libc" != musl
+then :
 
 ac_fn_check_decl "$LINENO" "PR_SET_VMA_ANON_NAME" "ac_cv_have_decl_PR_SET_VMA_ANON_NAME" "#include <linux/prctl.h>
                #include <sys/prctl.h>
@@ -23986,6 +23989,7 @@ printf "%s\n" "#define HAVE_PR_SET_VMA_ANON_NAME 1" >>confdefs.h
 fi
 
 
+fi
 # check for openpty, login_tty, and forkpty
 
 
diff --git a/configure.ac b/configure.ac
index 9e63c8f6144c..8c421c2a2baa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5595,14 +5595,15 @@ AC_CHECK_DECLS([UT_NAMESIZE],
                          [Define if you have the 'HAVE_UT_NAMESIZE' constant.])],
               [],
               [@%:@include <utmp.h>])
-
+# musl libc redefines struct prctl_mm_map and conflicts with linux/prctl.h
+AS_IF([test "$ac_cv_libc" != musl], [
 AC_CHECK_DECLS([PR_SET_VMA_ANON_NAME],
               [AC_DEFINE([HAVE_PR_SET_VMA_ANON_NAME], [1],
                          [Define if you have the 'PR_SET_VMA_ANON_NAME' constant.])],
               [],
               [@%:@include <linux/prctl.h>
                @%:@include <sys/prctl.h>])
-
+])
 # check for openpty, login_tty, and forkpty
 
 AC_CHECK_FUNCS([openpty], [],