Building gdb with GCC 14 fails here:
https://build.opensuse.org/package/live_build_log/openSUSE:Factory:Staging:Gcc7/gdb/standard/x86_64

Due to:

gdb-13.2/gdb/configure: line 418: test: too many arguments
configure: error: 18086
gdb-13.2/gdb/configure: line 307: return: Specific: numeric argument required
gdb-13.2/gdb/configure: line 317: exit: Specific: numeric argument required
gdb-13.2/gdb/configure: conftest.c: In function 'main':
gdb-13.2/gdb/configure: conftest.c:54:18: error: implicit declaration of function 'strerror'; did you mean 'Fstrerror'? [-Wimplicit-function-declaration]
gdb-13.2/gdb/configure:    54 |                  strerror (errno));
gdb-13.2/gdb/configure:       |                  ^~~~~~~~
gdb-13.2/gdb/configure:       |                  Fstrerror
gdb-13.2/gdb/configure: conftest.c:75:9: error: implicit declaration of function 'strcmp' [-Wimplicit-function-declaration]
gdb-13.2/gdb/configure:    75 |     if (strcmp ("librpm.so", "/lib64/librpm.so.10") != 0)
gdb-13.2/gdb/configure:       |         ^~~~~~
gdb-13.2/gdb/configure: conftest.c:41:1: note: include '<string.h>' or provide a declaration of 'strcmp'
gdb-13.2/gdb/configure:    40 | #include <errno.h>
gdb-13.2/gdb/configure:   +++ |+#include <string.h>
gdb-13.2/gdb/configure:    41 |


Builds with:

Index: gdb.spec_dir/gdb-13.2/gdb/configure
===================================================================
--- gdb.spec_dir.orig/gdb-13.2/gdb/configure
+++ gdb.spec_dir/gdb-13.2/gdb/configure
@@ -17942,6 +17942,7 @@ else
 #include <rpm/rpmlib.h>
 #include <dlfcn.h>
 #include <errno.h>
+#include <string.h>

 int
 main ()