config.m4

PHP_ARG_ENABLE(apcu, whether to enable APCu support,
[  --enable-apcu           Enable APCu support])

AC_MSG_CHECKING(if APCu should be allowed to use rwlocks)
AC_ARG_ENABLE(apcu-rwlocks,
[  --disable-apcu-rwlocks  Disable rwlocks in APCu],
[
  PHP_APCU_RWLOCKS=$enableval
  AC_MSG_RESULT($enableval)
],
[
  PHP_APCU_RWLOCKS=yes
  AC_MSG_RESULT(yes)
])

AC_MSG_CHECKING(if APCu should be built in debug mode)
AC_ARG_ENABLE(apcu-debug,
[  --enable-apcu-debug     Enable APCu debugging],
[
  PHP_APCU_DEBUG=$enableval
],
[
  PHP_APCU_DEBUG=no
])
AC_MSG_RESULT($PHP_APCU_DEBUG)

AC_MSG_CHECKING(if APCu should clear on SIGUSR1)
AC_ARG_ENABLE(apcu-clear-signal,
[  --enable-apcu-clear-signal  Enable SIGUSR1 clearing handler],
[
  AC_DEFINE(APC_CLEAR_SIGNAL, 1, [ ])
  AC_MSG_RESULT(yes)
],
[
  AC_MSG_RESULT(no)
])

PHP_APCU_MMAP=yes
AC_MSG_CHECKING([if APCu will use mmap (or shm)])
AC_ARG_ENABLE(apcu-mmap,
[  --disable-apcu-mmap     Disable mmap, falls back on shm],
[
  if test "x$enableval" = "xno"; then
    PHP_APCU_MMAP=no
  else
    PHP_APCU_MMAP=yes
  fi
])
AC_MSG_RESULT($PHP_APCU_MMAP)

PHP_APCU_SPINLOCK=no
AC_MSG_CHECKING(if APCu should utilize spinlocks before flocks)
AC_ARG_ENABLE(apcu-spinlocks,
[  --enable-apcu-spinlocks        Use spinlocks before flocks],
[ if test "x$enableval" = "xno"; then
    PHP_APCU_SPINLOCK=no
  else
    PHP_APCU_SPINLOCK=yes
  fi
])
AC_MSG_RESULT($PHP_APCU_SPINLOCK)

if test "$PHP_APCU_RWLOCKS" != "no"; then
  AC_CACHE_CHECK([whether the target compiler supports builtin atomics], PHP_cv_APCU_GCC_ATOMICS, [

    AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[
        int foo = 0;
        __sync_add_and_fetch(&foo, 1);
        __sync_sub_and_fetch(&foo, 1);
        return 0;
      ]])],[PHP_cv_APCU_GCC_ATOMICS=yes],[PHP_cv_APCU_GCC_ATOMICS=no])
  ])

  if test "x${PHP_cv_APCU_GCC_ATOMICS}" != "xyes"; then
    AC_MSG_ERROR([Compiler does not support atomics])
  fi
fi

if test "$PHP_APCU" != "no"; then
  if test "$PHP_APCU_DEBUG" != "no"; then
    AC_DEFINE(APC_DEBUG, 1, [ ])
  fi

  if test "$PHP_APCU_MMAP" != "no"; then
    AC_DEFINE(APC_MMAP, 1, [ ])
  fi

  if test "$PHP_APCU_RWLOCKS" != "no"; then
      orig_LIBS="$LIBS"
      LIBS="$LIBS -lpthread"
        AC_MSG_CHECKING([for pthread rwlocks])
      AC_RUN_IFELSE([AC_LANG_SOURCE([[
          #include <sys/types.h>
          #include <pthread.h>
                #include <stdio.h>
          int main() {
            pthread_rwlock_t rwlock;
            pthread_rwlockattr_t attr;

            if(pthread_rwlockattr_init(&attr)) {
              puts("Unable to initialize pthread attributes (pthread_rwlockattr_init).");
              return -1;
            }
            if(pthread_rwlockattr_setpshared(&attr, PTHREAD_PROCESS_SHARED)) {
              puts("Unable to set PTHREAD_PROCESS_SHARED (pthread_rwlockattr_setpshared), your system may not support shared rwlock's.");
              return -1;
            }
            if(pthread_rwlock_init(&rwlock, &attr)) {
              puts("Unable to initialize the rwlock (pthread_rwlock_init).");
              return -1;
            }
            if(pthread_rwlockattr_destroy(&attr)) {
              puts("Unable to destroy rwlock attributes (pthread_rwlockattr_destroy).");
              return -1;
            }
            if(pthread_rwlock_destroy(&rwlock)) {
              puts("Unable to destroy rwlock (pthread_rwlock_destroy).");
              return -1;
            }

            return 0;
          }
        ]])],[ dnl -Success-
          APCU_CFLAGS="-D_GNU_SOURCE -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1"
          PHP_ADD_LIBRARY(pthread)
          PHP_LDFLAGS="$PHP_LDFLAGS -lpthread"
          AC_DEFINE(APC_NATIVE_RWLOCK, 1, [ ])
          AC_MSG_RESULT([yes])
        ],[ dnl -Failure-
          AC_MSG_RESULT([no])
          PHP_APCU_RWLOCKS=no
        ],[
          APCU_CFLAGS="-D_GNU_SOURCE -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1"
          PHP_ADD_LIBRARY(pthread)
          PHP_LDFLAGS="$PHP_LDFLAGS -lpthread"
    ])
    LIBS="$orig_LIBS"
  fi

  if test "$PHP_APCU" != "no"; then
    orig_LIBS="$LIBS"
    LIBS="$LIBS -lpthread"
      AC_MSG_CHECKING([for pthread mutexes])
    AC_RUN_IFELSE([AC_LANG_SOURCE([[
          #include <sys/types.h>
          #include <pthread.h>
                  #include <stdio.h>
          int main() {
            pthread_mutex_t mutex;
            pthread_mutexattr_t attr;

            if(pthread_mutexattr_init(&attr)) {
              puts("Unable to initialize pthread attributes (pthread_mutexattr_init).");
              return -1;
            }
            if(pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_SHARED)) {
              puts("Unable to set PTHREAD_PROCESS_SHARED (pthread_mutexattr_setpshared), your system may not support shared mutex's.");
              return -1;
            }
            if(pthread_mutex_init(&mutex, &attr)) {
              puts("Unable to initialize the mutex (pthread_mutex_init).");
              return -1;
            }
            if(pthread_mutexattr_destroy(&attr)) {
              puts("Unable to destroy mutex attributes (pthread_mutexattr_destroy).");
              return -1;
            }
            if(pthread_mutex_destroy(&mutex)) {
              puts("Unable to destroy mutex (pthread_mutex_destroy).");
              return -1;
            }
            return 0;
        }
        ]])],[ dnl -Success-
          APCU_CFLAGS="-D_GNU_SOURCE -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1"
          PHP_ADD_LIBRARY(pthread)
          PHP_LDFLAGS="$PHP_LDFLAGS -lpthread"
          AC_MSG_RESULT([yes])
          AC_DEFINE(APC_HAS_PTHREAD_MUTEX, 1, [ ])
        ],[ dnl -Failure-
          AC_MSG_RESULT([no])
          PHP_APCU_MUTEX=no
        ],[
          APCU_CFLAGS="-D_GNU_SOURCE -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1"
          PHP_ADD_LIBRARY(pthread)
          PHP_LDFLAGS="$PHP_LDFLAGS -lpthread"
    ])
    LIBS="$orig_LIBS"
  fi

  if test "$PHP_APCU_RWLOCKS" = "no"; then
   if test "$PHP_APCU_MUTEX" = "no"; then
    if test "$PHP_APCU_SPINLOCK" != "no"; then
      AC_DEFINE(APC_SPIN_LOCK, 1, [ ])
      AC_MSG_WARN([APCu spin locking enabled])
    else
      AC_DEFINE(APC_FCNTL_LOCK, 1, [ ])
      AC_MSG_WARN([APCu file locking enabled])
    fi
   fi
  fi

  AC_CHECK_FUNCS(sigaction)
  AC_CACHE_CHECK(for union semun, php_cv_semun,
  [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
    ]], [[union semun x; x.val=1]])],[
      php_cv_semun=yes
    ],[
      php_cv_semun=no
    ])
  ])
  if test "$php_cv_semun" = "yes"; then
    AC_DEFINE(HAVE_SEMUN, 1, [ ])
  else
    AC_DEFINE(HAVE_SEMUN, 0, [ ])
  fi

  AC_ARG_ENABLE(valgrind-checks,
  [  --disable-valgrind-checks
                          Disable valgrind based memory checks],
  [
    PHP_APCU_VALGRIND=no
  ], [
    PHP_APCU_VALGRIND=yes
    AC_CHECK_HEADER(valgrind/memcheck.h,
      [AC_DEFINE([HAVE_VALGRIND_MEMCHECK_H],1, [enable valgrind memchecks])])
  ])

  for i in -Wall -Wextra -Wno-unused-parameter; do
    AX_CHECK_COMPILE_FLAG([$i], [APCU_CFLAGS="$APCU_CFLAGS $i"])
  done

  apc_sources="apc.c apc_lock.c apc_mutex.c php_apc.c \
                 apc_cache.c \
                 apc_mmap.c \
                 apc_shm.c \
                 apc_sma.c \
                 apc_stack.c \
                 apc_signal.c \
                 apc_time.c \
                 apc_iterator.c \
                 apc_persist.c"

  PHP_CHECK_LIBRARY(rt, shm_open, [PHP_ADD_LIBRARY(rt,,APCU_SHARED_LIBADD)])
  PHP_NEW_EXTENSION(apcu, $apc_sources, $ext_shared,, \\$(APCU_CFLAGS))
  PHP_SUBST(APCU_SHARED_LIBADD)
  PHP_SUBST(APCU_CFLAGS)
  PHP_SUBST(PHP_LDFLAGS)
  PHP_INSTALL_HEADERS(ext/apcu, [php_apc.h apc.h apc_api.h apc_cache.h apc_globals.h apc_iterator.h apc_lock.h apc_mutex.h apc_sma.h apc_serializer.h apc_stack.h apc_arginfo.h php_apc_legacy_arginfo.h])
  AC_DEFINE(HAVE_APCU, 1, [ ])
fi

PHP_ARG_ENABLE(coverage,  whether to include code coverage symbols,
[  --enable-coverage           DEVELOPERS ONLY!!], no, no)

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

  if test "$GCC" != "yes"; then
    AC_MSG_ERROR([GCC is required for --enable-coverage])
  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-coverage option is used. You can disable ccache by setting environment variable
CCACHE_DISABLE=1.])
  fi

  lcov_version_list="1.5 1.6 1.7 1.9"

  AC_CHECK_PROG(LCOV, lcov, lcov)
  AC_CHECK_PROG(GENHTML, genhtml, genhtml)
  PHP_SUBST(LCOV)
  PHP_SUBST(GENHTML)

  if test "$LCOV"; then
    AC_CACHE_CHECK([for lcov version], php_cv_lcov_version, [
      php_cv_lcov_version=invalid
      lcov_version=`$LCOV -v 2>/dev/null | $SED -e 's/^.* //'` #'
      for lcov_check_version in $lcov_version_list; do
        if test "$lcov_version" = "$lcov_check_version"; then
          php_cv_lcov_version="$lcov_check_version (ok)"
        fi
      done
    ])
  else
    lcov_msg="To enable code coverage reporting you must have one of the following LCOV versions installed: $lcov_version_list"
    AC_MSG_ERROR([$lcov_msg])
  fi

  case $php_cv_lcov_version in
    ""|invalid[)]
      lcov_msg="You must have one of the following versions of LCOV: $lcov_version_list (found: $lcov_version)."
      AC_MSG_ERROR([$lcov_msg])
      LCOV="exit 0;"
      ;;
  esac

  if test -z "$GENHTML"; then
    AC_MSG_ERROR([Could not find genhtml from the LCOV package])
  fi

  PHP_ADD_MAKEFILE_FRAGMENT

  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="$CFLAGS -O0 -ggdb -fprofile-arcs -ftest-coverage"
  CXXFLAGS="$CXXFLAGS -ggdb -O0 -fprofile-arcs -ftest-coverage"
fi
dnl vim: set ts=2