PHPC-2477: Remove unused libmongoc and libbson constants (#1768)

* PHPC-2477: BSON_HAVE_ATOMIC constants are obsolete

CDRIVER-4124 removed BSON_HAVE_ATOMIC_32_ADD_AND_FETCH and BSON_HAVE_ATOMIC_64_ADD_AND_FETCH

* PHPC-2477: BSON_PTHREAD_ONCE_INIT_NEEDS_BRACES is obsolete

CDRIVER-2694 removed BSON_PTHREAD_ONCE_INIT_NEEDS_BRACES

* PHPC-2477: BSON_HAVE_REALLOCF is obsolete

BSON_HAVE_REALLOCF was no longer used when libbson was vendored in CDRIVER-2416

* PHPC-2477: BSON_HAVE_SYSCALL_TID is obsolete

CDRIVER-2771 removed outstanding references to BSON_HAVE_SYSCALL_TID

* PHPC-2477: BSON_NEEDS_SET_OUTPUT_FORMAT is obsolete

* PHPC-2477: BSON_HAVE_DECIMAL128 is obsolete

* PHPC-2477: BSON_HAVE_ARC4RANDOM_BUF is obsolete

* PHPC-2477: MONGOC_ENABLE_SASL_GSSAPI is obsolete

CDRIVER-2654 removed MONGOC_ENABLE_SASL_GSSAPI. PHPC-2312 removed it from Autotools, but it was left behind in config.w32.

* PHPC-2477: MONGOC_HAVE_WEAK_SYMBOLS is obsolete

CDRIVER-2600 removed MONGOC_HAVE_WEAK_SYMBOLS

Author: jmikola

config.m4

@@ -338,7 +338,6 @@ if test "$PHP_MONGODB" != "no"; then
     m4_include(PHP_MONGODB_BASEDIR/scripts/autotools/CheckHost.m4)
     m4_include(PHP_MONGODB_BASEDIR/scripts/autotools/PlatformFlags.m4)
 
-    m4_include(PHP_MONGODB_BASEDIR/scripts/autotools/libbson/CheckAtomics.m4)
     m4_include(PHP_MONGODB_BASEDIR/scripts/autotools/libbson/CheckHeaders.m4)
     m4_include(PHP_MONGODB_BASEDIR/scripts/autotools/libbson/Endian.m4)
     m4_include(PHP_MONGODB_BASEDIR/scripts/autotools/libbson/FindDependencies.m4)
@@ -352,7 +351,6 @@ if test "$PHP_MONGODB" != "no"; then
     m4_include(PHP_MONGODB_BASEDIR/scripts/autotools/libmongoc/Endian.m4)
     m4_include(PHP_MONGODB_BASEDIR/scripts/autotools/libmongoc/FindDependencies.m4)
     m4_include(PHP_MONGODB_BASEDIR/scripts/autotools/libmongoc/Versions.m4)
-    m4_include(PHP_MONGODB_BASEDIR/scripts/autotools/libmongoc/WeakSymbols.m4)
 
     dnl This include modifies the value of $PHP_MONGODB_CLIENT_SIDE_ENCRYPTION to "yes"
     dnl or "no" depending on whether dependencies for libmongocrypt are fulfilled

config.w32

@@ -130,28 +130,16 @@ if (PHP_MONGODB != "no") {
     BSON_OS: 2,
     BSON_HAVE_STDBOOL_H: 0,
     BSON_HAVE_STRINGS_H: 0,
-    BSON_HAVE_ATOMIC_32_ADD_AND_FETCH: 0,
-    BSON_HAVE_ATOMIC_64_ADD_AND_FETCH: 0,
-    BSON_PTHREAD_ONCE_INIT_NEEDS_BRACES: 0,
     BSON_HAVE_CLOCK_GETTIME: 0,
     BSON_HAVE_STRNLEN: 0,
     BSON_HAVE_SNPRINTF: 0,
     BSON_HAVE_STRLCPY: 0,
-    BSON_HAVE_REALLOCF: 0,
-    BSON_NEEDS_SET_OUTPUT_FORMAT: 0,
     BSON_HAVE_TIMESPEC: 0,
     BSON_EXTRA_ALIGN: 0,
-    BSON_HAVE_SYSCALL_TID: 0,
-    BSON_HAVE_DECIMAL128: 0,
     BSON_HAVE_GMTIME_R: 0,
-    BSON_HAVE_RAND_R: 0,
-    BSON_HAVE_ARC4RANDOM_BUF: 0
+    BSON_HAVE_RAND_R: 0
   };
 
-  if (CHECK_FUNC_IN_HEADER("stdio.h", "_set_output_format")) {
-    bson_opts.BSON_NEEDS_SET_OUTPUT_FORMAT = 1;
-  }
-
   mongodb_generate_header(
     configure_module_dirname + "/src/libmongoc/src/libbson/src/bson/bson-config.h.in",
     configure_module_dirname + "/src/libmongoc/src/libbson/src/bson/bson-config.h",
@@ -187,7 +175,6 @@ if (PHP_MONGODB != "no") {
     MONGOC_ENABLE_MONGODB_AWS_AUTH: 0,
     MONGOC_ENABLE_SASL: 0,
     MONGOC_ENABLE_SASL_CYRUS: 0,
-    MONGOC_ENABLE_SASL_GSSAPI: 0,
     MONGOC_ENABLE_SASL_SSPI: 0,
     MONGOC_ENABLE_SRV: 0,
     MONGOC_ENABLE_RDTSCP: 0,
@@ -196,7 +183,6 @@ if (PHP_MONGODB != "no") {
     MONGOC_HAVE_SASL_CLIENT_DONE: 0,
     MONGOC_HAVE_SCHED_GETCPU: 0,
     MONGOC_HAVE_SOCKLEN: 1,
-    MONGOC_HAVE_WEAK_SYMBOLS: 0,
     MONGOC_NO_AUTOMATIC_GLOBALS: 1,
     MONGOC_SOCKET_ARG2: "struct sockaddr",
     MONGOC_SOCKET_ARG3: "socklen_t",

scripts/autotools/libbson/CheckAtomics.m4

@@ -13,46 +13,6 @@ if test "$bson_cv_have_strnlen" = yes; then
     AC_SUBST(BSON_HAVE_STRNLEN, 1)
 fi
 
-# Check for reallocf() (BSD/Darwin)
-AC_SUBST(BSON_HAVE_REALLOCF, 0)
-AC_CACHE_CHECK([for reallocf],
-  bson_cv_have_reallocf,
-  [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-#include <stdlib.h>
-int reallocf () { return 0; }
-]])],
-    [bson_cv_have_reallocf=no],
-    [bson_cv_have_reallocf=yes])])
-if test "$bson_cv_have_reallocf" = yes; then
-    AC_SUBST(BSON_HAVE_REALLOCF, 1)
-fi
-
-# Check for syscall()
-AC_SUBST(BSON_HAVE_SYSCALL_TID, 0)
-AC_CACHE_CHECK([for syscall],
-  bson_cv_have_syscall_tid,
-  [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-#include <unistd.h>
-#include <sys/syscall.h>
-int syscall () { return 0; }
-]])],
-    [bson_cv_have_syscall_tid=no],
-    [bson_cv_have_syscall_tid=yes])])
-if test "$bson_cv_have_syscall_tid" = yes -a "$os_darwin" != "yes"; then
-   AC_CACHE_CHECK([for SYS_gettid],
-     bson_cv_have_sys_gettid_tid,
-     [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-#include <unistd.h>
-#include <sys/syscall.h>
-int gettid () { return SYS_gettid; }
-   ]])],
-       [bson_cv_have_sys_gettid_tid=yes],
-       [bson_cv_have_sys_gettid_tid=no])])
-   if test "$bson_cv_have_sys_gettid_tid" = yes; then
-       AC_SUBST(BSON_HAVE_SYSCALL_TID, 1)
-   fi
-fi
-
 # Check for snprintf()
 AC_SUBST(BSON_HAVE_SNPRINTF, 0)
 AC_CHECK_FUNC(snprintf, [AC_SUBST(BSON_HAVE_SNPRINTF, 1)])
@@ -79,10 +39,6 @@ AC_CHECK_FUNC(gmtime_r, [AC_SUBST(BSON_HAVE_GMTIME_R, 1)])
 AC_SUBST(BSON_HAVE_RAND_R, 0)
 AC_CHECK_FUNC(rand_r, [AC_SUBST(BSON_HAVE_RAND_R, 1)])
 
-# Check for arc4random_buf()
-AC_SUBST(BSON_HAVE_ARC4RANDOM_BUF, 0)
-AC_CHECK_FUNC(arc4random_buf, [AC_SUBST(BSON_HAVE_ARC4RANDOM_BUF, 1)])
-
 # Check for pthreads. We might need to make this better to handle mingw,
 # but I actually think it is okay to just check for it even though we will
 # use win32 primatives.
@@ -96,26 +52,3 @@ AX_PTHREAD([
 ],[
   AC_MSG_ERROR([libbson requires pthreads on non-Windows platforms.])
 ])
-
-
-# The following is borrowed from the guile configure script.
-#
-# On past versions of Solaris, believe 8 through 10 at least, you
-# had to write "pthread_once_t foo = { PTHREAD_ONCE_INIT };".
-# This is contrary to POSIX:
-# http://www.opengroup.org/onlinepubs/000095399/functions/pthread_once.html
-# Check here if this style is required.
-#
-# glibc (2.3.6 at least) works both with or without braces, so the
-# test checks whether it works without.
-#
-AC_SUBST(BSON_PTHREAD_ONCE_INIT_NEEDS_BRACES, 0)
-AC_CACHE_CHECK([whether PTHREAD_ONCE_INIT needs braces],
-  bson_cv_need_braces_on_pthread_once_init,
-  [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>
-     pthread_once_t foo = PTHREAD_ONCE_INIT;]])],
-    [bson_cv_need_braces_on_pthread_once_init=no],
-    [bson_cv_need_braces_on_pthread_once_init=yes])])
-if test "$bson_cv_need_braces_on_pthread_once_init" = yes; then
-    AC_SUBST(BSON_PTHREAD_ONCE_INIT_NEEDS_BRACES, 1)
-fi