dnl Process this file with autoconf to produce a configure script.

dnl Include external macro definitions before the AC_INIT to also remove
dnl comments starting with # and empty newlines from the included files.
dnl ----------------------------------------------------------------------------
m4_include([build/ax_check_compile_flag.m4])
m4_include([build/ax_func_which_gethostbyname_r.m4])
m4_include([build/ax_gcc_func_attribute.m4])
m4_include([build/libtool.m4])
m4_include([build/php_cxx_compile_stdcxx.m4])
m4_include([build/php.m4])
m4_include([build/pkg.m4])
m4_include([TSRM/threads.m4])
m4_include([TSRM/tsrm.m4])

dnl Basic autoconf initialization, generation of config.nice.
dnl ----------------------------------------------------------------------------

AC_PREREQ([2.68])
AC_INIT([PHP],[7.4.3-dev],[https://bugs.php.net],[php],[https://www.php.net])
AC_CONFIG_SRCDIR([main/php_version.h])
AC_CONFIG_AUX_DIR([build])
AC_PRESERVE_HELP_ORDER

PHP_CONFIG_NICE(config.nice)

PHP_CANONICAL_HOST_TARGET

AC_CONFIG_HEADERS([main/php_config.h])

AH_TOP([
#ifndef PHP_CONFIG_H
#define PHP_CONFIG_H

#if defined(__GNUC__) && __GNUC__ >= 4
# define ZEND_API __attribute__ ((visibility("default")))
# define ZEND_DLEXPORT __attribute__ ((visibility("default")))
#else
# define ZEND_API
# define ZEND_DLEXPORT
#endif

#define ZEND_DLIMPORT
])
AH_BOTTOM([
#ifndef ZEND_ACCONFIG_H_NO_C_PROTOS

#include <stdlib.h>

#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif

#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif

#ifdef HAVE_IEEEFP_H
# include <ieeefp.h>
#endif

#include <string.h>

#if defined(__cplusplus) && __cplusplus >= 201103L
extern "C++" {
#include <cmath>
#define zend_isnan std::isnan
#define zend_isinf std::isinf
#define zend_finite std::isfinite
}
#else
#include <math.h>

#ifndef zend_isnan
#if HAVE_DECL_ISNAN
#define zend_isnan(a) isnan(a)
#elif defined(HAVE_FPCLASS)
#define zend_isnan(a) ((fpclass(a) == FP_SNAN) || (fpclass(a) == FP_QNAN))
#else
#define zend_isnan(a) ((a) != (a))
#endif
#endif

#if HAVE_DECL_ISINF
#define zend_isinf(a) isinf(a)
#elif defined(INFINITY)
/* Might not work, but is required by ISO C99 */
#define zend_isinf(a) (((a)==INFINITY || (a)==-INFINITY)?1:0)
#elif defined(HAVE_FPCLASS)
#define zend_isinf(a) ((fpclass(a) == FP_PINF) || (fpclass(a) == FP_NINF))
#else
#define zend_isinf(a) 0
#endif

#if HAVE_DECL_ISFINITE
#define zend_finite(a) isfinite(a)
#elif defined(HAVE_FINITE)
#define zend_finite(a) finite(a)
#elif defined(fpclassify)
#define zend_finite(a) ((fpclassify((a))!=FP_INFINITE&&fpclassify((a))!=FP_NAN)?1:0)
#else
#define zend_finite(a) (zend_isnan(a) ? 0 : zend_isinf(a) ? 0 : 1)
#endif

#endif
#endif /* ifndef ZEND_ACCONFIG_H_NO_C_PROTOS */

#endif /* PHP_CONFIG_H */
])

ac_IFS=$IFS; IFS="."
set $(echo AC_PACKAGE_VERSION | "${SED}" 's/\([[0-9\.]]*\)\(.*\)/\1\.\2/')
IFS=$ac_IFS
PHP_MAJOR_VERSION=[$]1
PHP_MINOR_VERSION=[$]2
PHP_RELEASE_VERSION=[$]3
PHP_EXTRA_VERSION=[$]4
PHP_VERSION="$PHP_MAJOR_VERSION.$PHP_MINOR_VERSION.$PHP_RELEASE_VERSION$PHP_EXTRA_VERSION"
PHP_VERSION_ID=`expr [$]PHP_MAJOR_VERSION \* 10000 + [$]PHP_MINOR_VERSION \* 100 + [$]PHP_RELEASE_VERSION`

dnl Allow version values to be used in Makefile.
PHP_SUBST(PHP_MAJOR_VERSION)
PHP_SUBST(PHP_MINOR_VERSION)
PHP_SUBST(PHP_RELEASE_VERSION)
PHP_SUBST(PHP_EXTRA_VERSION)

dnl Define where extension directories are located in the configure context.
AC_DEFUN([PHP_EXT_BUILDDIR],[$config_m4_dir])dnl
AC_DEFUN([PHP_EXT_DIR],[$config_m4_dir])dnl
AC_DEFUN([PHP_EXT_SRCDIR],[$abs_srcdir/$config_m4_dir])dnl
AC_DEFUN([PHP_ALWAYS_SHARED],[])dnl

dnl Setting up the PHP version based on the information above.
dnl ----------------------------------------------------------------------------

echo "/* automatically generated by configure */" > php_version.h.new
echo "/* edit configure.ac to change version number */" >> php_version.h.new
echo "#define PHP_MAJOR_VERSION $PHP_MAJOR_VERSION" >> php_version.h.new
echo "#define PHP_MINOR_VERSION $PHP_MINOR_VERSION" >> php_version.h.new
echo "#define PHP_RELEASE_VERSION $PHP_RELEASE_VERSION" >> php_version.h.new
echo "#define PHP_EXTRA_VERSION \"$PHP_EXTRA_VERSION\"" >> php_version.h.new
echo "#define PHP_VERSION \"$PHP_VERSION\"" >> php_version.h.new
echo "#define PHP_VERSION_ID $PHP_VERSION_ID" >> php_version.h.new
cmp php_version.h.new $srcdir/main/php_version.h >/dev/null 2>&1
if test $? -ne 0 ; then
  rm -f $srcdir/main/php_version.h && mv php_version.h.new $srcdir/main/php_version.h && \
  echo 'Updated main/php_version.h'
else
  rm -f php_version.h.new
fi

dnl Settings we want to make before the checks.
dnl ----------------------------------------------------------------------------

php_shtool=$srcdir/build/shtool
T_MD=`$php_shtool echo -n -e %B`
T_ME=`$php_shtool echo -n -e %b`

PHP_INIT_BUILD_SYSTEM

dnl We want this one before the checks, so the checks can modify CFLAGS.
test -z "$CFLAGS" && auto_cflags=1

abs_srcdir=`(cd $srcdir; pwd)`
abs_builddir=`pwd`

dnl Because `make install` is often performed by the superuser, we create the
dnl libs subdirectory as the user who configures PHP. Otherwise, the current
dnl user will not be able to delete libs or the contents of libs.

$php_shtool mkdir -p libs
rm -f libs/*

dnl Checks for programs.
dnl ----------------------------------------------------------------------------

PKG_PROG_PKG_CONFIG
AC_PROG_CC([cc gcc])
PHP_DETECT_ICC
PHP_DETECT_SUNCC
AC_PROG_CPP
AC_USE_SYSTEM_EXTENSIONS
AC_PROG_LN_S

dnl Support systems with system libraries in e.g. /usr/lib64.
PHP_ARG_WITH([libdir],
  [for system library directory],
  [AS_HELP_STRING([--with-libdir=NAME],
    [Look for libraries in .../NAME rather than .../lib])],
  [lib],
  [no])

PHP_ARG_ENABLE([rpath],
  [whether to enable runpaths],
  [AS_HELP_STRING([--disable-rpath],
    [Disable passing additional runtime library search paths])],
  [yes],
  [no])

dnl Check for -R, etc. switch.
PHP_RUNPATH_SWITCH

dnl Checks for some support/generator progs.
PHP_PROG_AWK
PHP_PROG_BISON([3.0.0])
PHP_PROG_RE2C([0.13.4])

PHP_ARG_ENABLE([re2c-cgoto],
  [whether to enable computed goto gcc extension with re2c],
  [AS_HELP_STRING([--enable-re2c-cgoto],
    [Enable -g flag to re2c to use computed goto gcc extension])],
  [no],
  [no])

if test "$PHP_RE2C_CGOTO" = "no"; then
  RE2C_FLAGS=""
else
  AC_MSG_CHECKING([whether re2c -g works])
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
int main(int argc, const char **argv)
{
  argc = argc;
  argv = argv;
label1:
label2:
  static void *adr[] = { &&label1, &&label2};
  goto *adr[0];
  return 0;
}
  ]])],[
    RE2C_FLAGS=""
    AC_MSG_RESULT([no])
  ],[
    RE2C_FLAGS="-g"
    AC_MSG_RESULT([yes])
  ])
fi
PHP_SUBST(RE2C_FLAGS)

dnl Platform-specific compile settings.
dnl ----------------------------------------------------------------------------

dnl See bug #28605
case $host_cpu in
  alpha*)
    if test "$GCC" = "yes"; then
      CFLAGS="$CFLAGS -mieee"
    else
      CFLAGS="$CFLAGS -ieee"
    fi
    ;;
  sparc*)
    if test "$SUNCC" = "yes"; then
      CFLAGS="$CFLAGS -xmemalign=8s"
    fi
    ;;
esac

dnl Mark symbols hidden by default if the compiler (for example, gcc >= 4)
dnl supports it. This can help reduce the binary size and startup time.
AX_CHECK_COMPILE_FLAG([-fvisibility=hidden],
                       [CFLAGS="$CFLAGS -fvisibility=hidden"])

case $host_alias in
  *solaris*)
    CPPFLAGS="$CPPFLAGS -D_POSIX_PTHREAD_SEMANTICS"
    if test "${enable_libgcc+set}" != "set" && test "$GCC" = "yes"; then
      enable_libgcc=yes
    fi
    ;;
  *dgux*)
    CPPFLAGS="$CPPFLAGS -D_BSD_TIMEOFDAY_FLAVOR"
    ;;
  *darwin*)
    if test -n "$GCC"; then
      PHP_CHECK_GCC_ARG(-no-cpp-precomp, gcc_no_cpp_precomp=yes)
      if test "$gcc_no_cpp_precomp" = "yes"; then
        CPPFLAGS="$CPPFLAGS -no-cpp-precomp"
      fi
    fi
    ;;
  *mips*)
    CPPFLAGS="$CPPFLAGS -D_XPG_IV"
    ;;
  *hpux*)
    if test "$GCC" = "yes"; then
      CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED"
    fi
    ;;
esac

dnl Disable PIC mode by default where it is known to be safe to do so, to avoid
dnl the performance hit from the lost register.
AC_MSG_CHECKING([whether to force non-PIC code in shared modules])
case $host_alias in
  i?86-*-linux*|i?86-*-freebsd*)
    if test "${with_pic+set}" != "set" || test "$with_pic" = "no"; then
      with_pic=no
      AC_MSG_RESULT(yes)
    else
      AC_MSG_RESULT(no)
    fi
    ;;
  *)
    AC_MSG_RESULT(no)
    ;;
esac

dnl Include Zend configurations.
dnl ----------------------------------------------------------------------------

sinclude(Zend/Zend.m4)

dnl ----------------------------------------------------------------------------

PTHREADS_CHECK
PHP_HELP_SEPARATOR([SAPI modules:])
PHP_SHLIB_SUFFIX_NAMES
PHP_BUILD_PROGRAM
PHP_SAPI=none

dnl SAPI configuration.
dnl ----------------------------------------------------------------------------

dnl Paths to the targets are relative to the build directory.
SAPI_SHARED=libs/libphp[]$PHP_MAJOR_VERSION[.]$SHLIB_DL_SUFFIX_NAME
SAPI_STATIC=libs/libphp[]$PHP_MAJOR_VERSION[.a]
SAPI_LIBTOOL=libphp[]$PHP_MAJOR_VERSION[.la]

PHP_CONFIGURE_PART(Configuring SAPI modules)

esyscmd(./build/config-stubs sapi)

dnl Show which main SAPI was selected.
AC_MSG_CHECKING([for chosen SAPI module])
AC_MSG_RESULT([$PHP_SAPI])

dnl Show which binaries were selected.
AC_MSG_CHECKING([for executable SAPI binaries])
if test "$PHP_BINARIES"; then
  AC_MSG_RESULT([$PHP_BINARIES])
else
  AC_MSG_RESULT([none])
fi

dnl Exit early.
if test -z "$PHP_INSTALLED_SAPIS"; then
  AC_MSG_ERROR([Nothing to build.])
fi

dnl Force ZTS.
if test "$enable_maintainer_zts" = "yes"; then
  dnl Add pthreads linker and compiler flags.
  if test -n "$ac_cv_pthreads_lib"; then
    LIBS="$LIBS -l$ac_cv_pthreads_lib"
  fi
  if test -n "$ac_cv_pthreads_cflags"; then
    CFLAGS="$CFLAGS $ac_cv_pthreads_cflags"
  fi

  PTHREADS_FLAGS
fi

dnl Starting system checks.
dnl ----------------------------------------------------------------------------

PHP_CONFIGURE_PART(Running system checks)

dnl Find sendmail binary.
PHP_PROG_SENDMAIL

dnl Check whether the system uses EBCDIC (not ASCII) as its native codeset.
PHP_EBCDIC

dnl Check whether the system byte ordering is bigendian.
PHP_C_BIGENDIAN

dnl Check whether writing to stdout works.
PHP_TEST_WRITE_STDOUT

dnl Check for /usr/pkg/{lib,include} which is where NetBSD puts binary and
dnl source packages. This should be harmless on other OSs.
if test -d /usr/pkg/include -a -d /usr/pkg/lib ; then
   CPPFLAGS="$CPPFLAGS -I/usr/pkg/include"
   LDFLAGS="$LDFLAGS -L/usr/pkg/lib"
fi
test -d /usr/ucblib && PHP_ADD_LIBPATH(/usr/ucblib)

dnl First, library checks.
dnl ----------------------------------------------------------------------------

dnl Some systems (OpenServer 5) dislike -lsocket -lnsl, so we try to avoid -lnsl
dnl checks, if we already have the functions which are usually in libnsl. Also,
dnl uClibc will bark at linking with glibc's libnsl.

PHP_CHECK_FUNC(socket, socket)
PHP_CHECK_FUNC(socketpair, socket)
PHP_CHECK_FUNC(htonl, socket)
PHP_CHECK_FUNC(gethostname, nsl)
PHP_CHECK_FUNC(gethostbyaddr, nsl)
PHP_CHECK_FUNC(dlopen, dl)
PHP_CHECK_FUNC(dlsym, dl)
if test "$ac_cv_func_dlopen" = "yes"; then
  AC_DEFINE(HAVE_LIBDL, 1, [ ])
fi
AC_CHECK_LIB(m, sin)

dnl Check for inet_aton in -lc, -lbind and -lresolv.
PHP_CHECK_FUNC(inet_aton, resolv, bind)

dnl Then headers.
dnl ----------------------------------------------------------------------------

dnl QNX requires unix.h to allow functions in libunix to work properly.
dnl locale.h is checked for supporting old code in extensions such as imagick.
AC_CHECK_HEADERS([ \
inttypes.h \
stdint.h \
dirent.h \
sys/param.h \
sys/types.h \
sys/time.h \
netinet/in.h \
alloca.h \
arpa/inet.h \
arpa/nameser.h \
crypt.h \
dns.h \
fcntl.h \
grp.h \
ieeefp.h \
langinfo.h \
locale.h \
malloc.h \
monetary.h \
netdb.h \
poll.h \
pwd.h \
resolv.h \
strings.h \
syslog.h \
sysexits.h \
sys/ioctl.h \
sys/file.h \
sys/mman.h \
sys/mount.h \
sys/poll.h \
sys/resource.h \
sys/select.h \
sys/socket.h \
sys/stat.h \
sys/statfs.h \
sys/statvfs.h \
sys/vfs.h \
sys/sysexits.h \
sys/uio.h \
sys/wait.h \
sys/loadavg.h \
termios.h \
unistd.h \
unix.h \
utime.h \
sys/utsname.h \
sys/ipc.h \
dlfcn.h \
tmmintrin.h \
nmmintrin.h \
immintrin.h
],[],[],[
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_NAMESER_H
#include <arpa/nameser.h>
#endif
])

PHP_FOPENCOOKIE
PHP_BROKEN_GETCWD
if test "$GCC" = "yes"; then
  PHP_BROKEN_GCC_STRLEN_OPT
fi

dnl Checks for typedefs, structures, and compiler characteristics.
dnl ----------------------------------------------------------------------------

AC_STRUCT_TIMEZONE

PHP_MISSING_TIME_R_DECL
PHP_MISSING_FCLOSE_DECL
PHP_STRUCT_FLOCK

AC_CHECK_TYPES(socklen_t, [], [], [
  #ifdef HAVE_SYS_TYPES_H
  # include <sys/types.h>
  #endif
  #ifdef HAVE_SYS_SOCKET_H
  # include <sys/socket.h>
  #endif
])

dnl These are defined elsewhere than stdio.h.
PHP_CHECK_SIZEOF(intmax_t, 0)
PHP_CHECK_SIZEOF(ssize_t, 8)
PHP_CHECK_SIZEOF(ptrdiff_t, 8)

dnl Check stdint types (must be after header check).
PHP_CHECK_STDINT_TYPES

dnl Check __builtin_expect
PHP_CHECK_BUILTIN_EXPECT
dnl Check __builtin_clz
PHP_CHECK_BUILTIN_CLZ
dnl Check __builtin_ctzl
PHP_CHECK_BUILTIN_CTZL
dnl Check __builtin_ctzll
PHP_CHECK_BUILTIN_CTZLL
dnl Check __builtin_smull_overflow
PHP_CHECK_BUILTIN_SMULL_OVERFLOW
dnl Check __builtin_smulll_overflow
PHP_CHECK_BUILTIN_SMULLL_OVERFLOW
dnl Check __builtin_saddl_overflow
PHP_CHECK_BUILTIN_SADDL_OVERFLOW
dnl Check __builtin_saddll_overflow
PHP_CHECK_BUILTIN_SADDLL_OVERFLOW
dnl Check __builtin_ssubl_overflow
PHP_CHECK_BUILTIN_SSUBL_OVERFLOW
dnl Check __builtin_ssubll_overflow
PHP_CHECK_BUILTIN_SSUBLL_OVERFLOW
dnl Check __builtin_cpu_init
PHP_CHECK_BUILTIN_CPU_INIT
dnl Check __builtin_cpu_supports
PHP_CHECK_BUILTIN_CPU_SUPPORTS

dnl Check instructions.
PHP_CHECK_CPU_SUPPORTS([ssse3])
PHP_CHECK_CPU_SUPPORTS([sse4.2])
PHP_CHECK_CPU_SUPPORTS([avx])
PHP_CHECK_CPU_SUPPORTS([avx2])

dnl Check for structure members.
AC_CHECK_MEMBERS([struct tm.tm_gmtoff],,,[#include <time.h>])
AC_CHECK_MEMBERS([struct stat.st_blksize, struct stat.st_rdev])
dnl AC_STRUCT_ST_BLOCKS will screw QNX because fileblocks.o does not exist.
if test "`uname -s 2>/dev/null`" != "QNX"; then
  AC_STRUCT_ST_BLOCKS
fi

dnl Checks for types.
AC_TYPE_SIZE_T
AC_TYPE_UID_T

dnl Checks for sockaddr_storage and sockaddr.sa_len.
PHP_SOCKADDR_CHECKS

dnl Checks for GCC function attributes on all systems except ones without glibc
dnl Fix for these systems is already included in GCC 7, but not on GCC 6.
dnl
dnl At least some versions of FreeBSD seem to have buggy ifunc support, see
dnl bug #77284. Conservatively don't use ifuncs on FreeBSD.
AS_CASE([$host_alias], [*-*-*android*|*-*-*uclibc*|*-*-*musl*|*freebsd*], [true], [
  AX_GCC_FUNC_ATTRIBUTE([ifunc])
  AX_GCC_FUNC_ATTRIBUTE([target])
])

dnl Check for IPv6 support.
AC_CACHE_CHECK([for IPv6 support], ac_cv_ipv6_support,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>]], [[struct sockaddr_in6 s; struct in6_addr t=in6addr_any; int i=AF_INET6; s; t.s6_addr[0] = 0;]])],
  [ac_cv_ipv6_support=yes], [ac_cv_ipv6_support=no])])

dnl Checks for library functions.
dnl ----------------------------------------------------------------------------

AC_CHECK_FUNCS(
alphasort \
asctime_r \
chroot \
ctime_r \
crypt \
explicit_memset \
flock \
fpclass \
ftok \
funopen \
gai_strerror \
getcwd \
getloadavg \
getlogin \
getprotobyname \
getprotobynumber \
getservbyname \
getservbyport \
getrusage \
gettimeofday \
gmtime_r \
getpwnam_r \
getgrnam_r \
getpwuid_r \
getwd \
glob \
grantpt \
inet_ntoa \
inet_ntop \
inet_pton \
localtime_r \
lchown \
mbrlen \
memmove \
mkstemp \
mmap \
nice \
nl_langinfo \
poll \
ptsname \
putenv \
realpath \
rand_r \
scandir \
setitimer \
setenv \
shutdown \
sigprocmask \
statfs \
statvfs \
std_syslog \
strcasecmp \
strfmon \
strnlen \
strptime \
strtok_r \
symlink \
tzset \
unlockpt \
unsetenv \
usleep \
utime \
vasprintf \
asprintf \
nanosleep \
memmem \
)

AX_FUNC_WHICH_GETHOSTBYNAME_R

dnl Some systems (like OpenSolaris) do not have nanosleep in libc.
PHP_CHECK_FUNC_LIB(nanosleep, rt)

dnl Check for getaddrinfo, should be a better way, but... Also check for working
dnl getaddrinfo.
AC_CACHE_CHECK([for getaddrinfo], ac_cv_func_getaddrinfo,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
  [[struct addrinfo *g,h;g=&h;getaddrinfo("","",g,&g);]])],[AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <netdb.h>
#include <sys/types.h>
#ifndef AF_INET
# include <sys/socket.h>
#endif
int main(void) {
  struct addrinfo *ai, *pai, hints;

  memset(&hints, 0, sizeof(hints));
  hints.ai_flags = AI_NUMERICHOST;

  if (getaddrinfo("127.0.0.1", 0, &hints, &ai) < 0) {
    exit(1);
  }

  if (ai == 0) {
    exit(1);
  }

  pai = ai;

  while (pai) {
    if (pai->ai_family != AF_INET) {
      /* 127.0.0.1/NUMERICHOST should only resolve ONE way */
      exit(1);
    }
    if (pai->ai_addr->sa_family != AF_INET) {
      /* 127.0.0.1/NUMERICHOST should only resolve ONE way */
      exit(1);
    }
    pai = pai->ai_next;
  }
  freeaddrinfo(ai);
  exit(0);
}
  ]])],[ac_cv_func_getaddrinfo=yes], [ac_cv_func_getaddrinfo=no], [ac_cv_func_getaddrinfo=no])],
[ac_cv_func_getaddrinfo=no])])
if test "$ac_cv_func_getaddrinfo" = yes; then
  AC_DEFINE(HAVE_GETADDRINFO,1,[Define if you have the getaddrinfo function])
fi

dnl Check for the __sync_fetch_and_add builtin.
AC_CACHE_CHECK([for __sync_fetch_and_add], ac_cv_func_sync_fetch_and_add,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([], [[int x;__sync_fetch_and_add(&x,1);]])],[ac_cv_func_sync_fetch_and_add=yes],[ac_cv_func_sync_fetch_and_add=no])])
if test "$ac_cv_func_sync_fetch_and_add" = yes; then
  AC_DEFINE(HAVE_SYNC_FETCH_AND_ADD,1,[Define if you have the __sync_fetch_and_add function])
fi

AC_REPLACE_FUNCS(strlcat strlcpy explicit_bzero getopt)
AC_FUNC_ALLOCA
PHP_TIME_R_TYPE
PHP_CHECK_IN_ADDR_T

AC_CHECK_FUNCS(crypt_r, [ php_crypt_r="1" ], [ php_crypt_r="0" ])
if test "x$php_crypt_r" = "x1"; then
  PHP_CRYPT_R_STYLE
fi

dnl Check for asm goto support.
AC_CACHE_CHECK([for asm goto], ac_cv__asm_goto,
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
int main(void) {
#if defined(__x86_64__) || defined(__i386__)
    __asm__ goto("jmp %l0\n" :::: end);
#elif defined(__aarch64__)
    __asm__ goto("b %l0\n" :::: end);
#endif
end:
    return 0;
}
  ]])], [ac_cv__asm_goto=yes], [ac_cv__asm_goto=no], [ac_cv__asm_goto=no])])

if test "$ac_cv__asm_goto" = yes; then
  AC_DEFINE(HAVE_ASM_GOTO,1,[Define if asm goto support])
fi

dnl Check for variable length array support.
AC_CACHE_CHECK([whether compiler supports VLA], ac_cv__compiler_c99_vla,
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #include <stdlib.h>
 int main(void) {
         int i[rand()%10];
	 return 0;
 }
 ]])],[ac_cv__compiler_c99_vla=yes], [ac_cv__compiler_c99_vla=no], [ac_cv__compiler_c99_vla=no])])

if test "$ac_cv__compiler_c99_vla" = yes; then
	AC_DEFINE(HAVE_COMPILER_C99_VLA, 1, [Compiler supports VLA])
fi

dnl Check valgrind support.
PHP_ARG_WITH([valgrind],
  [whether to enable valgrind support],
  [AS_HELP_STRING([--with-valgrind],
    [Enable valgrind support])],
  [yes],
  [no])

if test "$PHP_VALGRIND" != "no"; then
  PKG_CHECK_MODULES([VALGRIND], [valgrind], [have_valgrind="yes"], [have_valgrind="no"])

  if test "$have_valgrind" = "yes"; then
    PHP_EVAL_INCLINE($VALGRIND_CFLAGS)
    AC_DEFINE(HAVE_VALGRIND, 1, [ ])
  else
    if test "$with_valgrind" = "yes"; then
      AC_MSG_ERROR([Valgrind not found. Please install Valgrind.])
    fi
  fi
fi

dnl General settings.
dnl ----------------------------------------------------------------------------
PHP_CONFIGURE_PART(General settings)

PHP_HELP_SEPARATOR([General settings:])

PHP_ARG_ENABLE([gcov],
  [whether to include gcov symbols],
  [AS_HELP_STRING([--enable-gcov],
    [Enable GCOV code coverage - FOR DEVELOPERS ONLY!!])],
  [no],
  [no])

if test "$PHP_GCOV" = "yes"; then

  if test "$GCC" != "yes"; then
    AC_MSG_ERROR([GCC is required for --enable-gcov])
  fi

  dnl Check if ccache is being used.
  case `$php_shtool path $CC` in
    *ccache*[)] gcc_ccache=yes;;
    *[)] gcc_ccache=no;;
  esac

  if test "$gcc_ccache" = "yes" && (test -z "$CCACHE_DISABLE" || test "$CCACHE_DISABLE" != "1"); then
    AC_MSG_ERROR([ccache must be disabled when --enable-gcov option is used. You can disable ccache by setting environment variable CCACHE_DISABLE=1.])
  fi

  AC_DEFINE(HAVE_GCOV, 1, [Whether you have gcov])
  PHP_ADD_MAKEFILE_FRAGMENT($abs_srcdir/build/Makefile.gcov, $abs_srcdir)

  dnl Remove all optimization flags from CFLAGS.
  changequote({,})
  CFLAGS=`echo "$CFLAGS" | "${SED}" -e 's/-O[0-9s]*//g'`
  CXXFLAGS=`echo "$CXXFLAGS" | "${SED}" -e 's/-O[0-9s]*//g'`
  changequote([,])

  dnl Add the special gcc flags.
  CFLAGS="$CFLAGS -O0 -fprofile-arcs -ftest-coverage"
  CXXFLAGS="$CXXFLAGS -O0 -fprofile-arcs -ftest-coverage"
fi

PHP_ARG_ENABLE([debug],
  [whether to include debugging symbols],
  [AS_HELP_STRING([--enable-debug],
    [Compile with debugging symbols])],
  [no],
  [no])

if test "$PHP_DEBUG" = "yes"; then
  PHP_DEBUG=1
  ZEND_DEBUG=yes
  changequote({,})
  CFLAGS=`echo "$CFLAGS" | "${SED}" -e 's/-O[0-9s]*//g'`
  CXXFLAGS=`echo "$CXXFLAGS" | "${SED}" -e 's/-O[0-9s]*//g'`
  changequote([,])
  dnl Add -O0 only if GCC or ICC is used.
  if test "$GCC" = "yes" || test "$ICC" = "yes"; then
    CFLAGS="$CFLAGS -O0"
    CXXFLAGS="$CXXFLAGS -g -O0"
  fi
  if test "$SUNCC" = "yes"; then
    if test -n "$auto_cflags"; then
      CFLAGS="-g"
      CXXFLAGS="-g"
    else
      CFLAGS="$CFLAGS -g"
      CXXFLAGS="$CFLAGS -g"
    fi
  fi
else
  PHP_DEBUG=0
  ZEND_DEBUG=no
fi

PHP_ARG_ENABLE([rtld-now],
  [whether to dlopen extensions with RTLD_NOW instead of RTLD_LAZY],
  [AS_HELP_STRING([--enable-rtld-now],
    [Use dlopen with RTLD_NOW instead of RTLD_LAZY])],
  [no],
  [no])

if test "$PHP_RTLD_NOW" = "yes"; then
  AC_DEFINE(PHP_USE_RTLD_NOW, 1, [ Use dlopen with RTLD_NOW instead of RTLD_LAZY ])
fi

PHP_ARG_WITH([layout],
  [layout of installed files],
  [AS_HELP_STRING([--with-layout=TYPE],
    [Set how installed files will be laid out. Type can be either PHP or GNU [PHP]])],
  [PHP],
  [no])

case $PHP_LAYOUT in
  GNU)
    oldstyleextdir=no
    ;;
  *)
    oldstyleextdir=yes
    ;;
esac

PHP_ARG_WITH([config-file-path],
  [path to configuration file],
  [AS_HELP_STRING([--with-config-file-path=PATH],
    [Set the path in which to look for php.ini [PREFIX/lib]])],
  [DEFAULT],
  [no])

if test "$PHP_CONFIG_FILE_PATH" = "DEFAULT"; then
  case $PHP_LAYOUT in
    GNU)
      PHP_CONFIG_FILE_PATH=$sysconfdir
      ;;
    *)
      PHP_CONFIG_FILE_PATH=$libdir
      ;;
  esac
fi

AC_MSG_CHECKING([where to scan for configuration files])
PHP_ARG_WITH([config-file-scan-dir],,
  [AS_HELP_STRING([--with-config-file-scan-dir=PATH],
    [Set the path where to scan for configuration files])],
  [DEFAULT],
  [no])

if test "$PHP_CONFIG_FILE_SCAN_DIR" = "DEFAULT"; then
  PHP_CONFIG_FILE_SCAN_DIR=
fi
AC_MSG_RESULT([$PHP_CONFIG_FILE_SCAN_DIR])

test -n "$DEBUG_CFLAGS" && CFLAGS="$CFLAGS $DEBUG_CFLAGS"

PHP_ARG_ENABLE([sigchild],
  [whether to enable PHP's own SIGCHLD handler],
  [AS_HELP_STRING([--enable-sigchild],
    [Enable PHP's own SIGCHLD handler])],
  [no],
  [no])

if test "$PHP_SIGCHILD" = "yes"; then
  AC_DEFINE(PHP_SIGCHILD, 1, [ ])
else
  AC_DEFINE(PHP_SIGCHILD, 0, [ ])
fi

PHP_ARG_ENABLE([libgcc],
  [whether to explicitly link against libgcc],
  [AS_HELP_STRING([--enable-libgcc],
    [Enable explicitly linking against libgcc])],
  [no],
  [no])

if test "$PHP_LIBGCC" = "yes"; then
  PHP_LIBGCC_LIBPATH(gcc)
  if test -z "$libgcc_libpath"; then
    AC_MSG_ERROR([Cannot locate libgcc. Make sure that gcc is in your path])
  fi
  PHP_ADD_LIBPATH($libgcc_libpath)
  PHP_ADD_LIBRARY(gcc, yes)
fi

PHP_ARG_ENABLE([short-tags],
  [whether to enable short tags by default],
  [AS_HELP_STRING([--disable-short-tags],
    [Disable the short-form <? start tag by default])],
  [yes],
  [no])

if test "$PHP_SHORT_TAGS" = "yes"; then
  AC_DEFINE(DEFAULT_SHORT_OPEN_TAG, "1", [ ])
else
  AC_DEFINE(DEFAULT_SHORT_OPEN_TAG, "0", [ ])
fi

PHP_ARG_ENABLE([dmalloc],
  [whether to enable dmalloc],
  [AS_HELP_STRING([--enable-dmalloc],
    [Enable dmalloc])],
  [no],
  [no])

if test "$PHP_DMALLOC" = "yes"; then
  AC_CHECK_LIB(dmalloc, dmalloc_error, [
    PHP_ADD_LIBRARY(dmalloc)
    AC_DEFINE(HAVE_DMALLOC,1,[Whether you have dmalloc])
    CPPFLAGS="$CPPFLAGS -DDMALLOC_FUNC_CHECK"
  ], [
    AC_MSG_ERROR([Problem with enabling dmalloc. Please check config.log for details.])
  ])
fi

PHP_ARG_ENABLE([ipv6],
  [whether to enable IPv6 support],
  [AS_HELP_STRING([--disable-ipv6],
    [Disable IPv6 support])],
  [yes],
  [no])

if test "$PHP_IPV6" != "no" && test "$ac_cv_ipv6_support" = yes; then
  AC_DEFINE(HAVE_IPV6, 1, [Whether to enable IPv6 support])
fi

dnl DTRACE checks. Note: this has to be done after SAPI configuration.
PHP_ARG_ENABLE([dtrace],
  [whether to enable DTrace support],
  [AS_HELP_STRING([--enable-dtrace],
    [Enable DTrace support])],
  [no],
  [no])

if test "$PHP_DTRACE" = "yes"; then
  AC_CHECK_HEADERS([sys/sdt.h], [
    PHP_INIT_DTRACE([Zend/zend_dtrace.d],[Zend/zend_dtrace_gen.h],[main/main.c Zend/zend_API.c \
      Zend/zend_execute.c Zend/zend_exceptions.c \
      Zend/zend_dtrace.c Zend/zend.c])
    AC_DEFINE(HAVE_DTRACE, 1, [Whether to enable DTrace support])
    PHP_SUBST(PHP_DTRACE_OBJS)
  ], [
    AC_MSG_ERROR([Cannot find sys/sdt.h which is required for DTrace support])
  ])
fi

AC_MSG_CHECKING([how big to make fd sets])
PHP_ARG_ENABLE([fd-setsize],,
  [AS_HELP_STRING([--enable-fd-setsize],
    [Set size of descriptor sets])],
  [no],
  [no])

if test "$PHP_FD_SETSIZE" != "no"; then
  if test "0$PHP_FD_SETSIZE" -gt 0 2>/dev/null; then
    CPPFLAGS="$CPPFLAGS -DFD_SETSIZE=$PHP_FD_SETSIZE"
    AC_MSG_RESULT([using $PHP_FD_SETSIZE])
  else
    AC_MSG_ERROR([Invalid value passed to --enable-fd-setsize!])
  fi
else
  AC_MSG_RESULT([using system default])
fi

PHP_ARG_ENABLE([werror],,
  [AS_HELP_STRING([--enable-werror],
    [Enable -Werror])],
  [no],
  [no])

dnl Extension configuration.
dnl ----------------------------------------------------------------------------

PHP_HELP_SEPARATOR([Extensions:

  --with-EXTENSION=[shared[,PATH]]

    NOTE: Not all extensions can be build as 'shared'.

    Example: --with-foobar=shared,/usr/local/foobar/

      o Builds the foobar extension as shared extension.
      o foobar package install prefix is /usr/local/foobar/
])

PHP_CONFIGURE_PART(Configuring extensions)

dnl Check if all enabled by default extensions should be disabled.
AC_ARG_ENABLE([all],
  [AS_HELP_STRING([--disable-all],
    [Disable all extensions which are enabled by default])],
  [PHP_ENABLE_ALL=$enableval])

dnl Reading config stubs.
esyscmd(./build/config-stubs ext)

dnl Extensions post-config.
dnl ----------------------------------------------------------------------------

enable_shared=yes
enable_static=yes

case $php_sapi_module in
  shared[)]
    enable_static=no
    case $with_pic in
      yes)
        standard_libtool_flag='-prefer-pic'
        ;;
      no)
        standard_libtool_flag='-prefer-non-pic'
        ;;
    esac
    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -avoid-version -module"
    ;;
  *[)]
    standard_libtool_flag='-prefer-non-pic -static'
    if test -z "$PHP_MODULES" && test -z "$PHP_ZEND_EX"; then
      enable_shared=no
    fi
    ;;
esac

EXTRA_LIBS="$EXTRA_LIBS $DLIBS $LIBS"

dnl This has to be here to prevent the openssl crypt() from overriding the
dnl system provided crypt().
if test "$ac_cv_lib_crypt_crypt" = "yes"; then
  EXTRA_LIBS="-lcrypt $EXTRA_LIBS -lcrypt"
fi

unset LIBS LDFLAGS

dnl PEAR
dnl ----------------------------------------------------------------------------

PHP_HELP_SEPARATOR([PEAR:])
PHP_CONFIGURE_PART(Configuring PEAR)

dnl Compatibility
if test -z "$with_pear" && test "$enable_pear" = "no"; then
  with_pear=no
fi

dnl If CLI is disabled disable PEAR.
if test "$PHP_CLI" = "no"; then
  with_pear=no
fi

PHP_ARG_WITH([pear],
  [whether to install PEAR],
  [AS_HELP_STRING([[--with-pear[=DIR]]],
    [Install PEAR in DIR [PREFIX/lib/php]])],
  [no],
  [yes])

if test "$PHP_PEAR" != "no"; then

  dnl PEAR dependencies.
  if test "$PHP_XML" = "no"; then
    pear_error_msg="$pear_error_msg
                    PEAR requires XML to be enabled.     Add --enable-xml to the configure line. (or --without-pear)"
  fi

  if test "$pear_error_msg"; then
    AC_MSG_ERROR([$pear_error_msg])
  fi

  AC_MSG_WARN([The --with-pear option is deprecated])

  install_pear="install-pear"
  PEAR_INSTALLDIR=$PHP_PEAR

  if test "$PHP_PEAR" = "yes"; then
    case $PHP_LAYOUT in
      GNU) PEAR_INSTALLDIR=$datadir/pear;;
      *)   PEAR_INSTALLDIR=$libdir/php;;
    esac
  fi

  PHP_ADD_MAKEFILE_FRAGMENT($abs_srcdir/pear/Makefile.frag,$abs_srcdir/pear,pear)
fi

dnl Configuring Zend and TSRM.
dnl ----------------------------------------------------------------------------

PHP_HELP_SEPARATOR([Zend:])
PHP_CONFIGURE_PART(Configuring Zend)

LIBZEND_BASIC_CHECKS
LIBZEND_DLSYM_CHECK
LIBZEND_OTHER_CHECKS

if test "$ZEND_MAINTAINER_ZTS" = "yes"; then
  AC_DEFINE(ZTS,1,[ ])
  PHP_THREAD_SAFETY=yes
else
  PHP_THREAD_SAFETY=no
fi

INCLUDES="$INCLUDES -I\$(top_builddir)/TSRM"
INCLUDES="$INCLUDES -I\$(top_builddir)/Zend"

if test "$abs_srcdir" != "$abs_builddir"; then
  INCLUDES="$INCLUDES -I\$(top_srcdir)/main -I\$(top_srcdir)/Zend"
  INCLUDES="$INCLUDES -I\$(top_srcdir)/TSRM -I\$(top_builddir)/"
fi

ZEND_EXTRA_LIBS="$LIBS"
unset LIBS LDFLAGS

PHP_HELP_SEPARATOR([TSRM:])
PHP_CONFIGURE_PART(Configuring TSRM)
if test "$PHP_THREAD_SAFETY" = "yes"; then
  TSRM_THREADS_CHECKS
fi

dnl Align segments on huge page boundary
case $host_alias in
  i[[3456]]86-*-linux-* | x86_64-*-linux-*)
    EXTRA_LDFLAGS_PROGRAM="$EXTRA_LDFLAGS_PROGRAM -Wl,-zcommon-page-size=2097152 -Wl,-zmax-page-size=2097152"
    ;;
esac

EXTRA_LDFLAGS="$EXTRA_LDFLAGS $LDFLAGS"
EXTRA_LDFLAGS_PROGRAM="$EXTRA_LDFLAGS_PROGRAM $LDFLAGS"
EXTRA_LIBS="$EXTRA_LIBS $LIBS"
unset LIBS LDFLAGS

AC_ARG_PROGRAM

test "$prefix" = "NONE" && prefix=/usr/local
test "$exec_prefix" = "NONE" && exec_prefix='${prefix}'
test "$program_prefix" = "NONE" && program_prefix=
test "$program_suffix" = "NONE" && program_suffix=

case $libdir in
  '${exec_prefix}/lib')
    libdir=$libdir/php
    ;;
esac
case `eval echo $datadir` in
  '${prefix}/share')
    datadir=$datadir/php
    ;;
esac

phplibdir=`pwd`/modules
$php_shtool mkdir -p $phplibdir
phptempdir=`pwd`/libs

old_exec_prefix=$exec_prefix
old_libdir=$libdir
old_datadir=$datadir
exec_prefix=`eval echo $exec_prefix`
libdir=`eval echo $libdir`
datadir=`eval eval echo $datadir`

dnl Build extension directory path.
ZEND_MODULE_API_NO=`$EGREP '#define ZEND_MODULE_API_NO ' $srcdir/Zend/zend_modules.h|"${SED}" 's/#define ZEND_MODULE_API_NO //'`

if test -z "$EXTENSION_DIR"; then
  extbasedir=$ZEND_MODULE_API_NO
  if test "$oldstyleextdir" = "yes"; then
    if test "$PHP_DEBUG" = "1"; then
      part1=debug
    else
      part1=no-debug
    fi
    if test "$enable_maintainer_zts" = "yes"; then
      part2=zts
    else
      part2=non-zts
    fi
    extbasedir=$part1-$part2-$extbasedir
    EXTENSION_DIR=$libdir/extensions/$extbasedir
  else
    if test "$enable_maintainer_zts" = "yes"; then
      extbasedir=$extbasedir-zts
    fi

    if test "$PHP_DEBUG" = "1"; then
      extbasedir=$extbasedir-debug
    fi
    EXTENSION_DIR=$libdir/$extbasedir
  fi
fi

case $PHP_LAYOUT in
  GNU)
    datarootdir=$prefix/share
    ;;
  *)
    datarootdir=$prefix/php
    ;;
esac

dnl Expand all directory names for use in macros/constants.
EXPANDED_PEAR_INSTALLDIR=`eval echo $PEAR_INSTALLDIR`
EXPANDED_EXTENSION_DIR=`eval echo $EXTENSION_DIR`
EXPANDED_LOCALSTATEDIR=`eval echo $localstatedir`
EXPANDED_BINDIR=`eval echo $bindir`
EXPANDED_SBINDIR=`eval echo $sbindir`
EXPANDED_MANDIR=`eval echo $mandir`
EXPANDED_LIBDIR=$libdir
EXPANDED_SYSCONFDIR=`eval echo $sysconfdir`
EXPANDED_DATADIR=$datadir
EXPANDED_PHP_CONFIG_FILE_PATH=`eval echo "$PHP_CONFIG_FILE_PATH"`
EXPANDED_PHP_CONFIG_FILE_SCAN_DIR=`eval echo "$PHP_CONFIG_FILE_SCAN_DIR"`
INCLUDE_PATH=.:$EXPANDED_PEAR_INSTALLDIR

exec_prefix=$old_exec_prefix
libdir=$old_libdir
datadir=$old_datadir

AC_SUBST(INCLUDE_PATH)
AC_SUBST(EXPANDED_PEAR_INSTALLDIR)
AC_SUBST(EXPANDED_EXTENSION_DIR)
AC_SUBST(EXPANDED_BINDIR)
AC_SUBST(EXPANDED_SBINDIR)
AC_SUBST(EXPANDED_MANDIR)
AC_SUBST(EXPANDED_LIBDIR)
AC_SUBST(EXPANDED_DATADIR)
AC_SUBST(EXPANDED_SYSCONFDIR)
AC_SUBST(EXPANDED_LOCALSTATEDIR)
AC_SUBST(EXPANDED_PHP_CONFIG_FILE_PATH)
AC_SUBST(EXPANDED_PHP_CONFIG_FILE_SCAN_DIR)

if test -n "$php_ldflags_add_usr_lib"; then
  PHP_RPATHS="$PHP_RPATHS /usr/lib"
fi

PHP_UTILIZE_RPATHS

if test -z "$php_ldflags_add_usr_lib"; then
  PHP_REMOVE_USR_LIB(PHP_LDFLAGS)
  PHP_REMOVE_USR_LIB(LDFLAGS)
fi

EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PHP_LDFLAGS"
EXTRA_LDFLAGS_PROGRAM="$EXTRA_LDFLAGS_PROGRAM $PHP_LDFLAGS"

dnl SOURCE_DATE_EPOCH for reproducible builds
dnl https://reproducible-builds.org/specs/source-date-epoch/
PHP_BUILD_DATE=`date --utc --date="@${SOURCE_DATE_EPOCH:-$(date +%s)}" +%Y-%m-%d 2>/dev/null`
if test $? -ne 0 ; then
PHP_BUILD_DATE=`date -u +%Y-%m-%d`
fi
AC_DEFINE_UNQUOTED(PHP_BUILD_DATE,"$PHP_BUILD_DATE",[PHP build date])

PHP_UNAME=`uname -a | xargs`
AC_DEFINE_UNQUOTED(PHP_UNAME,"$PHP_UNAME",[uname -a output])
PHP_OS=`uname | xargs`
AC_DEFINE_UNQUOTED(PHP_OS,"$PHP_OS",[uname output])

PHP_SUBST_OLD(PHP_INSTALLED_SAPIS)

PHP_SUBST(PHP_FASTCGI_OBJS)
PHP_SUBST(PHP_SAPI_OBJS)
PHP_SUBST(PHP_BINARY_OBJS)
PHP_SUBST(PHP_GLOBAL_OBJS)

PHP_SUBST(PHP_BINARIES)
PHP_SUBST(PHP_MODULES)
PHP_SUBST(PHP_ZEND_EX)

PHP_SUBST(EXT_LIBS)

PHP_SUBST_OLD(abs_builddir)
PHP_SUBST_OLD(abs_srcdir)

PHP_SUBST(bindir)
PHP_SUBST(sbindir)
PHP_SUBST(exec_prefix)
PHP_SUBST_OLD(program_prefix)
PHP_SUBST_OLD(program_suffix)
PHP_SUBST(includedir)
PHP_SUBST(libdir)
PHP_SUBST(mandir)
PHP_SUBST(phplibdir)
PHP_SUBST(phptempdir)
PHP_SUBST(prefix)
PHP_SUBST(localstatedir)
PHP_SUBST(datadir)
PHP_SUBST(datarootdir)
PHP_SUBST(sysconfdir)

PHP_SUBST(EXEEXT)
PHP_SUBST(CC)
PHP_SUBST(CFLAGS)
PHP_SUBST(CFLAGS_CLEAN)
PHP_SUBST(CPP)
PHP_SUBST(CPPFLAGS)
PHP_SUBST(CXX)
PHP_SUBST(CXXFLAGS)
PHP_SUBST(CXXFLAGS_CLEAN)
PHP_SUBST_OLD(DEBUG_CFLAGS)
PHP_SUBST_OLD(EXTENSION_DIR)
PHP_SUBST_OLD(EXTRA_LDFLAGS)
PHP_SUBST_OLD(EXTRA_LDFLAGS_PROGRAM)
PHP_SUBST_OLD(EXTRA_LIBS)
PHP_SUBST_OLD(ZEND_EXTRA_LIBS)
PHP_SUBST_OLD(INCLUDES)
PHP_SUBST_OLD(EXTRA_INCLUDES)
PHP_SUBST_OLD(INCLUDE_PATH)
PHP_SUBST_OLD(INSTALL_IT)
PHP_SUBST(LFLAGS)
PHP_SUBST(LIBTOOL)
PHP_SUBST(LN_S)
PHP_SUBST_OLD(NATIVE_RPATHS)
PHP_SUBST_OLD(PEAR_INSTALLDIR)
PHP_SUBST(PHP_BUILD_DATE)
PHP_SUBST_OLD(PHP_LDFLAGS)
PHP_SUBST_OLD(PHP_LIBS)
PHP_SUBST(OVERALL_TARGET)
PHP_SUBST(PHP_RPATHS)
PHP_SUBST(PHP_SAPI)
PHP_SUBST_OLD(PHP_VERSION)
PHP_SUBST_OLD(PHP_VERSION_ID)
PHP_SUBST(SHELL)
PHP_SUBST(SHARED_LIBTOOL)
PHP_SUBST(PHP_FRAMEWORKS)
PHP_SUBST(PHP_FRAMEWORKPATH)
PHP_SUBST(INSTALL_HEADERS)

old_CC=$CC

if test "$PHP_THREAD_SAFETY" = "yes" && test -n "$ac_cv_pthreads_cflags"; then
  CXXFLAGS="$CXXFLAGS $ac_cv_pthreads_cflags"
  INLINE_CFLAGS="$INLINE_CFLAGS $ac_cv_pthreads_cflags"
  CPPFLAGS="$CPPFLAGS $ac_cv_pthreads_cflags"
fi

if test "$PHP_WERROR" = "yes"; then
  CFLAGS="$CFLAGS -Werror"
  CPPFLAGS="$CPPFLAGS -Werror"
fi

dnl
dnl Libtool creation.
dnl

PHP_HELP_SEPARATOR([Libtool:])
PHP_CONFIGURE_PART(Configuring libtool)

dnl Silence warning: `ar: 'u' modifier ignored since 'D' is the default`
dnl See https://github.com/php/php-src/pull/3017
AC_SUBST(AR_FLAGS, [cr])

dnl Only allow AC_PROG_CXX and AC_PROG_CXXCPP if they are explicitly called (by
dnl PHP_REQUIRE_CXX). Otherwise AC_PROG_LIBTOOL fails if there is no working C++
dnl compiler.
AC_PROVIDE_IFELSE([PHP_REQUIRE_CXX], [], [
  undefine([AC_PROG_CXX])
  AC_DEFUN([AC_PROG_CXX], [])
  undefine([AC_PROG_CXXCPP])
  AC_DEFUN([AC_PROG_CXXCPP], [php_prog_cxxcpp=disabled])
])
AC_PROG_LIBTOOL

PHP_SET_LIBTOOL_VARIABLE([--silent])

dnl libtool 1.4.3 needs this.
PHP_SET_LIBTOOL_VARIABLE([--preserve-dup-deps])

test -z "$PHP_COMPILE" && PHP_COMPILE='$(LIBTOOL) --mode=compile $(COMPILE) -c $<'
test -z "$CXX_PHP_COMPILE" && CXX_PHP_COMPILE='$(LIBTOOL) --mode=compile $(CXX_COMPILE) -c $<'
SHARED_LIBTOOL='$(LIBTOOL)'

CC=$old_CC

PHP_CONFIGURE_PART(Generating files)

CXXFLAGS_CLEAN=$CXXFLAGS
CFLAGS_CLEAN="$CFLAGS \$(PROF_FLAGS)"
CFLAGS="\$(CFLAGS_CLEAN) $standard_libtool_flag"
INLINE_CFLAGS="$INLINE_CFLAGS $standard_libtool_flag"
CXXFLAGS="$CXXFLAGS $standard_libtool_flag \$(PROF_FLAGS)"

if test "$PHP_PHAR" != "no" && test "$PHP_CLI" != "no"; then
  pharcmd=pharcmd
  pharcmd_install=install-pharcmd
else
  pharcmd=
  pharcmd_install=
fi;

all_targets="$lcov_target \$(OVERALL_TARGET) \$(PHP_MODULES) \$(PHP_ZEND_EX) \$(PHP_BINARIES) $pharcmd"
install_targets="$install_sapi $install_modules $install_binaries install-build install-headers install-programs $install_pear $pharcmd_install"

PHP_SUBST(all_targets)
PHP_SUBST(install_targets)
PHP_SUBST(install_binary_targets)

PHP_INSTALL_HEADERS([Zend/ TSRM/ include/ main/ main/streams/])

PHP_ADD_SOURCES(TSRM, TSRM.c, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1)

PHP_ADD_SOURCES(main, main.c snprintf.c spprintf.c \
       fopen_wrappers.c alloca.c  php_scandir.c \
       php_ini.c SAPI.c rfc1867.c php_content_types.c strlcpy.c \
       strlcat.c explicit_bzero.c mergesort.c reentrancy.c php_variables.c php_ticks.c \
       network.c php_open_temporary_file.c \
       output.c getopt.c php_syslog.c, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1)

PHP_ADD_SOURCES_X(main, fastcgi.c, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1, PHP_FASTCGI_OBJS, no)

PHP_ADD_SOURCES(main/streams, streams.c cast.c memory.c filter.c \
       plain_wrapper.c userspace.c transports.c xp_socket.c mmap.c \
       glob_wrapper.c, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1)

PHP_ADD_SOURCES(/main, internal_functions.c, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1, sapi)
PHP_ADD_SOURCES_X(/main, internal_functions_cli.c, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1, PHP_BINARY_OBJS)

PHP_ADD_SOURCES(Zend, \
    zend_language_parser.c zend_language_scanner.c \
    zend_ini_parser.c zend_ini_scanner.c \
    zend_alloc.c zend_compile.c zend_constants.c zend_dtrace.c \
    zend_execute_API.c zend_highlight.c zend_llist.c \
    zend_vm_opcodes.c zend_opcode.c zend_operators.c zend_ptr_stack.c zend_stack.c \
    zend_variables.c zend.c zend_API.c zend_extensions.c zend_hash.c \
    zend_list.c zend_builtin_functions.c \
    zend_ini.c zend_sort.c zend_multibyte.c zend_ts_hash.c zend_stream.c \
    zend_iterators.c zend_interfaces.c zend_exceptions.c zend_strtod.c zend_gc.c \
    zend_closures.c zend_weakrefs.c zend_float.c zend_string.c zend_signal.c zend_generators.c \
    zend_virtual_cwd.c zend_ast.c zend_objects.c zend_object_handlers.c zend_objects_API.c \
    zend_default_classes.c zend_inheritance.c zend_smart_str.c zend_cpuinfo.c, \
	-DZEND_ENABLE_STATIC_TSRMLS_CACHE=1)

dnl Selectively disable optimization due to high RAM usage during compiling the
dnl executor.
if test -n "$GCC" && test "$ZEND_INLINE_OPTIMIZATION" != "yes"; then
  flag=-O0
else
  flag=
fi

PHP_ADD_SOURCES_X(Zend, zend_execute.c, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1,PHP_GLOBAL_OBJS,,$flag)

PHP_ADD_BUILD_DIR(main main/streams)
PHP_ADD_BUILD_DIR(TSRM)
PHP_ADD_BUILD_DIR(Zend)

PHP_ADD_MAKEFILE_FRAGMENT($abs_srcdir/scripts/Makefile.frag,$abs_srcdir/scripts,scripts)
PHP_ADD_MAKEFILE_FRAGMENT($abs_srcdir/Zend/Makefile.frag,$abs_srcdir/Zend,Zend)

PHP_GEN_BUILD_DIRS
PHP_GEN_GLOBAL_MAKEFILE

AC_DEFINE([HAVE_BUILD_DEFS_H], 1, [ ])

dnl Make directories when building in a separate build directory.
$php_shtool mkdir -p pear
$php_shtool mkdir -p scripts
$php_shtool mkdir -p scripts/man1

ALL_OUTPUT_FILES="main/build-defs.h \
scripts/phpize scripts/man1/phpize.1 \
scripts/php-config scripts/man1/php-config.1 \
$PHP_OUTPUT_FILES"

dnl Generate build files.
AC_CONFIG_FILES([$ALL_OUTPUT_FILES])

AC_CONFIG_COMMANDS_PRE([PHP_PATCH_CONFIG_HEADERS([main/php_config.h.in])])

AC_CONFIG_COMMANDS([default],[
cat <<X

+--------------------------------------------------------------------+
| License:                                                           |
| This software is subject to the PHP License, available in this     |
| distribution in the file LICENSE. By continuing this installation  |
| process, you are bound by the terms of this license agreement.     |
| If you do not agree with the terms of this license, you must abort |
| the installation process at this point.                            |
+--------------------------------------------------------------------+

Thank you for using PHP.

X
],[

if test "\$CONFIG_FILES" = "$ALL_OUTPUT_FILES" || test "\$CONFIG_FILES" = " $ALL_OUTPUT_FILES" || test -z "\$CONFIG_FILES"; then
  REDO_ALL=yes
fi

dnl Create configuration headers.
dnl ----------------------------------------------------------------------------
test -d Zend || $php_shtool mkdir Zend

cat >Zend/zend_config.h <<FEO
#include <../main/php_config.h>
FEO

dnl Run this only when generating all the files.
if test -n "\$REDO_ALL"; then
  echo "creating main/internal_functions.c"
  AWK="$AWK" sh $srcdir/build/genif.sh $srcdir/main/internal_functions.c.in "$EXT_STATIC" > main/internal_functions.c

  echo "creating main/internal_functions_cli.c"
  AWK="$AWK" sh $srcdir/build/genif.sh $srcdir/main/internal_functions.c.in "$EXT_CLI_STATIC" > main/internal_functions_cli.c

    if test "$PHP_SAPI" = "apache2handler"; then
      if test "$APACHE_VERSION" -ge 2004001; then
        if test -z "$APACHE_THREADED_MPM"; then
cat <<X
+--------------------------------------------------------------------+
|                        *** WARNING ***                             |
|                                                                    |
| You have built PHP for Apache's current non-threaded MPM.          |
| If you change Apache to use a threaded MPM you must reconfigure    |
| PHP with --enable-maintainer-zts                                   |
X
        fi
      fi
    fi

  dnl Warn about Apache if oci8 extension is enabled on Linux.
  if test "$PHP_OCI8" != "no"; then
    if test "$PHP_SIGCHILD" != "yes"; then
      if test "$PHP_OCI8_INSTANT_CLIENT" = "no"; then
cat <<X
+--------------------------------------------------------------------+
| Notice:                                                            |
| If you encounter <defunc> processes when using a local Oracle      |
| database, set the value BEQUEATH_DETACH=YES in Oracle Net's        |
| sqlnet.ora file on the PHP host, or set the environment variable   |
| BEQUEATH_DETACH to YES before starting Apache.  If the problem     |
| still occurs, then recompile PHP and specify --enable-sigchild     |
| when configuring.                                                  |
X
      fi
    fi
  fi

fi
])
AC_OUTPUT