[gcc r15-5744] libstdc++: Include <sys/cdefs.h> in os_defines.h for FreeBSD [PR117210]

[Jonathan Wakely]

https://gcc.gnu.org/g:aa9f12e58ddc2298a253cc6e1343ad7e2eb9bcad

commit r15-5744-gaa9f12e58ddc2298a253cc6e1343ad7e2eb9bcad
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Wed Nov 27 14:10:34 2024 +0000

    libstdc++: Include <sys/cdefs.h> in os_defines.h for FreeBSD [PR117210]
    
    This is needed so that __LONG_LONG_SUPPORTED is defined before we depend
    on it.
    
    libstdc++-v3/ChangeLog:
    
            PR libstdc++/117210
            * config/os/bsd/dragonfly/os_defines.h: Include <sys/cdefs.h>.
            * config/os/bsd/freebsd/os_defines.h: Likewise.

Diff:
---
 libstdc++-v3/config/os/bsd/dragonfly/os_defines.h | 2 ++
 libstdc++-v3/config/os/bsd/freebsd/os_defines.h   | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/libstdc++-v3/config/os/bsd/dragonfly/os_defines.h b/libstdc++-v3/config/os/bsd/dragonfly/os_defines.h
index e030fa3dc872..9c5aaabc90f3 100644
--- a/libstdc++-v3/config/os/bsd/dragonfly/os_defines.h
+++ b/libstdc++-v3/config/os/bsd/dragonfly/os_defines.h
@@ -29,6 +29,8 @@
 // System-specific #define, typedefs, corrections, etc, go here.  This
 // file will come before all others.
 
+#include <sys/cdefs.h> // For __LONG_LONG_SUPPORTED
+
 #define _GLIBCXX_USE_C99 1
 #define _GLIBCXX_USE_C99_STDIO 1
 #define _GLIBCXX_USE_C99_STDLIB 1
diff --git a/libstdc++-v3/config/os/bsd/freebsd/os_defines.h b/libstdc++-v3/config/os/bsd/freebsd/os_defines.h
index 0d63ae6cec4c..125dfdc18885 100644
--- a/libstdc++-v3/config/os/bsd/freebsd/os_defines.h
+++ b/libstdc++-v3/config/os/bsd/freebsd/os_defines.h
@@ -29,6 +29,8 @@
 // System-specific #define, typedefs, corrections, etc, go here.  This
 // file will come before all others.
 
+#include <sys/cdefs.h> // For __LONG_LONG_SUPPORTED
+
 #define _GLIBCXX_USE_C99_STDIO 1
 #define _GLIBCXX_USE_C99_STDLIB 1
 #define _GLIBCXX_USE_C99_WCHAR 1