From: Peter Marko <[email protected]> Signed-off-by: Peter Marko <[email protected]> --- ...d-failure-with-glibc-2.43-_Generic-m.patch | 41 +++++++++++++++++++ .../recipes-support/ntp/ntp_4.2.8p18.bb | 1 + 2 files changed, 42 insertions(+) create mode 100644 meta-networking/recipes-support/ntp/ntp/0001-include-fix-build-failure-with-glibc-2.43-_Generic-m.patch
diff --git a/meta-networking/recipes-support/ntp/ntp/0001-include-fix-build-failure-with-glibc-2.43-_Generic-m.patch b/meta-networking/recipes-support/ntp/ntp/0001-include-fix-build-failure-with-glibc-2.43-_Generic-m.patch new file mode 100644 index 0000000000..89797b3aa8 --- /dev/null +++ b/meta-networking/recipes-support/ntp/ntp/0001-include-fix-build-failure-with-glibc-2.43-_Generic-m.patch @@ -0,0 +1,41 @@ +From c7d76559dada2a6c0c9c18e8343a69b1eabc031e Mon Sep 17 00:00:00 2001 +From: Peter Marko <[email protected]> +Date: Fri, 13 Mar 2026 13:20:20 +0100 +Subject: [PATCH] include: fix build failure with glibc 2.38+ _Generic memchr + macro + +Newer glibc defines memchr as a _Generic macro in <string.h>. +When sntp's config.h lacks a HAVE_MEMCHR definition, the #ifndef guard +in l_stdlib.h passes and the extern declaration of memchr is emitted. +The preprocessor expands the memchr token into _Generic(...), producing: + + l_stdlib.h:225:14: error: expected identifier or '(' before '_Generic' + +Guard the fallback declarations of memchr and strnlen with an additional +!defined(memchr) / !defined(strnlen) check so they are skipped when the +symbols are already provided as macros by the C library headers. + +Upstream-Status: Pending +Signed-off-by: Peter Marko <[email protected]> +--- + include/l_stdlib.h | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/include/l_stdlib.h b/include/l_stdlib.h +index fbf57c5..195dc41 100644 +--- a/include/l_stdlib.h ++++ b/include/l_stdlib.h +@@ -221,11 +221,11 @@ extern int errno; + extern int h_errno; + #endif + +-#ifndef HAVE_MEMCHR ++#if !defined(HAVE_MEMCHR) && !defined(memchr) + extern void *memchr(const void *s, int c, size_t n); + #endif + +-#ifndef HAVE_STRNLEN ++#if !defined(HAVE_STRNLEN) && !defined(strnlen) + extern size_t strnlen(const char *s, size_t n); + #endif + diff --git a/meta-networking/recipes-support/ntp/ntp_4.2.8p18.bb b/meta-networking/recipes-support/ntp/ntp_4.2.8p18.bb index a5a6048f8a..e59725e3e9 100644 --- a/meta-networking/recipes-support/ntp/ntp_4.2.8p18.bb +++ b/meta-networking/recipes-support/ntp/ntp_4.2.8p18.bb @@ -16,6 +16,7 @@ SRC_URI = "http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-${PV}.tar.g file://0001-libntp-Do-not-use-PTHREAD_STACK_MIN-on-glibc.patch \ file://0001-test-Fix-build-with-new-compiler-defaults-to-fno-com.patch \ file://0001-sntp-Fix-types-in-check-for-pthread_detach.patch \ + file://0001-include-fix-build-failure-with-glibc-2.43-_Generic-m.patch \ file://ntpd \ file://ntp.conf \ file://ntpd.service \
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