...
postgresql 19beta1

  Data layout
    data block size          : 8 kB
    WAL block size           : 8 kB
    segment size             : 1 GB

  System
    host system              : linux x86_64
    build system             : linux x86_64

  Compiler
    linker                   : ld.bfd
    C compiler               : gcc 16.1.1
    C++ compiler             : gcc 16.1.1

  Compiler Flags
    CPP FLAGS                : -D_GNU_SOURCE
    C FLAGS, functional      : -fno-strict-aliasing -fwrapv -fexcess-precision=standard
    C FLAGS, warnings        : -Wpointer-arith -Werror=vla -Wmissing-format-attribute -Wcast-function-type -Wshadow=compatible-local -Wformat-security -Wmissing-prototypes -Wold-style-declaration -Wold-style-definition -Wstrict-prototypes -Wimplicit-fallthrough=5 -Wdeclaration-after-statement -Wmissing-variable-declarations -Wno-format-truncation -Wno-stringop-truncation
    C FLAGS, modules         : -fvisibility=hidden
    C FLAGS, user specified  :
    LD FLAGS                 :
    C++ FLAGS, functional    : -fno-strict-aliasing -fwrapv -fexcess-precision=standard
    C++ FLAGS, warnings      : -Wpointer-arith -Werror=vla -Wmissing-format-attribute -Wcast-function-type -Wshadow=compatible-local -Wformat-security -Wimplicit-fallthrough=5 -Wno-format-truncation -Wno-stringop-truncation
    C++ FLAGS, user specified:

  Programs
    bison                    : /usr/bin/bison 3.8.2
    dtrace                   : NO
    flex                     : /usr/bin/flex 2.6.4

  External libraries
    bonjour                  : NO
    bsd_auth                 : NO
    docs                     : YES
    docs_pdf                 : NO
    gss                      : NO
    icu                      : YES 77.1
    ldap                     : NO
    libcurl                  : NO
    libnuma                  : YES 2.0.19
    liburing                 : YES 2.13
    libxml                   : YES 2.12.10
    libxslt                  : NO
    llvm                     : NO
    lz4                      : YES 1.10.0
    nls                      : YES
    openssl                  : YES 3.5.5
    pam                      : NO
    plperl                   : YES 5.42.2
    plpython                 : YES 3.14
    pltcl                    : NO
    readline                 : YES 8.3
    selinux                  : YES 3.10
    systemd                  : YES 259
    uuid                     : YES 1.6.2
    zlib                     : YES 1.3.1.zlib-ng
    zstd                     : YES 1.5.7

  User defined options
    pgport                   : 5431
    prefix                   : /usr/local/pgbeta
    uuid                     : ossp

Found ninja-1.13.2 at /usr/bin/ninja
[root@fedora pg19_b1]# cd build
[root@fedora build]# ninja
[839/2360] Compiling C object src/backend/postgres_lib.a.p/optimizer_util_clauses.c.o
../src/backend/optimizer/util/clauses.c: In function ‘recheck_cast_function_args.isra’:
../src/backend/optimizer/util/clauses.c:5152:19: warning: ‘actual_arg_types’ may be used uninitialized [-Wmaybe-uninitialized]
 5152 |         rettype = enforce_generic_type_consistency(actual_arg_types,
      |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 5153 |                                                                                            declared_arg_types,
      |                                                                                            ~~~~~~~~~~~~~~~~~~~
 5154 |                                                                                            nargs,
      |                                                                                            ~~~~~~
 5155 |                                                                                            funcform->prorettype,
      |                                                                                            ~~~~~~~~~~~~~~~~~~~~~
 5156 |                                                                                            false);
      |                                                                                            ~~~~~~
In file included from ../src/backend/optimizer/util/clauses.c:46:
../src/include/parser/parse_coerce.h:85:17: note: by argument 1 of type ‘const Oid *’ {aka ‘const unsigned int *’} to ‘enforce_generic_type_consistency’ declared here
   85 | extern Oid      enforce_generic_type_consistency(const Oid *actual_arg_types,
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../src/backend/optimizer/util/clauses.c:5138:33: note: ‘actual_arg_types’ declared here
 5138 |         Oid                     actual_arg_types[FUNC_MAX_ARGS];
      |                                 ^~~~~~~~~~~~~~~~
[2360/2360] Linking target src/interfaces/ecpg/test/pg_regress_ecpg
[root@fedora build]#