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dnl Function to test if a certain feature was enabled
AC_DEFUN([LIBEWF_TEST_ENABLE],
[AC_ARG_ENABLE(
[$1],
[AS_HELP_STRING(
[--enable-$1],
[$3 (default is $4)])],
[ac_cv_libewf_enable_$2=$enableval],
[ac_cv_libewf_enable_$2=$4])dnl
AC_CACHE_CHECK(
[whether to enable $3],
[ac_cv_libewf_enable_$2],
[ac_cv_libewf_enable_$2=$4])dnl
])
dnl Function to detect whether nl_langinfo supports CODESET
AC_DEFUN([LIBEWF_LANGINFO_CODESET],
[AC_CHECK_FUNCS(
[nl_langinfo],
[AC_CACHE_CHECK(
[for nl_langinfo CODESET support],
[ac_cv_libewf_langinfo_codeset],
[AC_LANG_PUSH(C)
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <langinfo.h>]],
[[char* charset = nl_langinfo( CODESET );]] )],
[ac_cv_libewf_langinfo_codeset=yes],
[ac_cv_libewf_langinfo_codeset=no])
AC_LANG_POP(C) ]) ],
[ac_cv_libewf_langinfo_codeset=no] )
AS_IF(
[test "x$ac_cv_libewf_langinfo_codeset" = xyes],
[AC_DEFINE(
[HAVE_LANGINFO_CODESET],
[1],
[Define if nl_langinfo has CODESET support.]) ])
])
dnl Function to detect whether printf conversion specifier "%jd" is available
AC_DEFUN([LIBEWF_CHECK_PRINTF_JD],
[SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Werror"
AC_LANG_PUSH(C)
AC_MSG_CHECKING(
[whether printf supports the conversion specifier "%jd"])
dnl First try to see if compilation and linkage without a parameter succeeds
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <stdio.h>]],
[[printf( "%jd" ); ]] )],
[AC_MSG_RESULT(
[no])],
dnl Second try to see if compilation and linkage with a parameter succeeds
[AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <sys/types.h>
#include <stdio.h>]],
[[printf( "%jd", (off_t) 10 ); ]] )],
dnl Third try to see if the program runs correctly
[AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
[[#include <sys/types.h>
#include <stdio.h>]],
[[char string[ 3 ];
if( snprintf( string, 3, "%jd", (off_t) 10 ) < 0 ) return( 1 );
if( ( string[ 0 ] != '1' ) || ( string[ 1 ] != '0' ) ) return( 1 ); ]] )],
[AC_MSG_RESULT(
[yes])
AC_DEFINE(
[HAVE_PRINTF_JD],
[1],
[Define to 1 whether printf supports the conversion specifier "%jd".] )],
[AC_MSG_RESULT(
[no])],
[AC_MSG_RESULT(
[undetermined])] )],
[AC_MSG_RESULT(
[no])] )] )
AC_LANG_POP(C)
CFLAGS="$SAVE_CFLAGS"])
dnl Function to detect whether printf conversion specifier "%zd" is available
AC_DEFUN([LIBEWF_CHECK_PRINTF_ZD],
[SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Werror"
AC_LANG_PUSH(C)
AC_MSG_CHECKING(
[whether printf supports the conversion specifier "%zd"])
dnl First try to see if compilation and linkage without a parameter succeeds
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <stdio.h>]],
[[printf( "%zd" ); ]] )],
[AC_MSG_RESULT(
[no])],
dnl Second try to see if compilation and linkage with a parameter succeeds
[AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <sys/types.h>
#include <stdio.h>]],
[[printf( "%zd", (size_t) 10 ); ]] )],
dnl Third try to see if the program runs correctly
[AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
[[#include <sys/types.h>
#include <stdio.h>]],
[[char string[ 3 ];
if( snprintf( string, 3, "%zd", (size_t) 10 ) < 0 ) return( 1 );
if( ( string[ 0 ] != '1' ) || ( string[ 1 ] != '0' ) ) return( 1 ); ]] )],
[AC_MSG_RESULT(
[yes])
AC_DEFINE(
[HAVE_PRINTF_ZD],
[1],
[Define to 1 whether printf supports the conversion specifier "%zd".] )],
[AC_MSG_RESULT(
[no])],
[AC_MSG_RESULT(
[undetermined])] )],
[AC_MSG_RESULT(
[no])] )] )
AC_LANG_POP(C)
CFLAGS="$SAVE_CFLAGS"])
dnl Function to detect if ctime_r or ctime is available
dnl Also checks if ctime_t is defined according to the POSIX standard
AC_DEFUN([LIBEWF_CHECK_FUNC_CTIME],
[AC_CHECK_FUNC(
[ctime_r],
[AC_LANG_PUSH(C)
AC_MSG_CHECKING(
[if ctime_r is defined according to the POSIX definition])
AC_LINK_IFELSE(
AC_LANG_PROGRAM(
[[#include <time.h>]],
[[ctime_r(NULL,NULL,0)]]),
[AC_MSG_RESULT(
[ctime_r with additional size argument detected])
AC_DEFINE(
[HAVE_CTIME_R],
[1],
[Define to 1 if you have the ctime_r function.] )
AC_DEFINE(
[HAVE_CTIME_R_SIZE],
[1],
[Define to 1 if you have the ctime_r function with a third size argument.] )],
[AC_LINK_IFELSE(
AC_LANG_PROGRAM(
[[#include <time.h>]],
[[ctime_r(NULL,NULL)]]),
[AC_MSG_RESULT(
[yes])
AC_DEFINE(
[HAVE_CTIME_R],
[1],
[Define to 1 if you have the ctime_r function.] )],
[CPPFLAGS="$CPPFLAGS -D_POSIX_PTHREAD_SEMANTICS"
AC_LINK_IFELSE(
AC_LANG_PROGRAM(
[[#include <time.h>]],
[[ctime_r(NULL,NULL)]] ),
[AC_MSG_RESULT(
[ctime_r requires additional compile flags])
AC_DEFINE(
[HAVE_CTIME_R],
[1],
[Define to 1 if you have the ctime_r function.] )],
[AC_MSG_WARN(
[Unable to determine how to compile ctime_r])
AC_CHECK_FUNCS(
[ctime],
[],
[AC_MSG_FAILURE(
[Missing function: ctime_r and ctime],
[1]) ]) ])
])
])
AC_LANG_POP(C) ],
[AC_CHECK_FUNCS(
[ctime],
[],
[AC_MSG_FAILURE(
[Missing function: ctime_r and ctime],
[1]) ]) ])
])
dnl Function to detect if posix_fadvise is available
AC_DEFUN([LIBEWF_CHECK_FUNC_POSIX_FADVISE],
[AC_CHECK_FUNCS(
[posix_fadvise],
[AC_LANG_PUSH(C)
AC_MSG_CHECKING(
[if posix_fadvise can be linked])
AC_LINK_IFELSE(
AC_LANG_PROGRAM(
[[#include <fcntl.h>]],
[[#if !defined( POSIX_FADV_SEQUENTIAL )
#define POSIX_FADV_SEQUENTIAL 2
#endif
posix_fadvise(0,0,0,POSIX_FADV_SEQUENTIAL)]]),
[AC_MSG_RESULT(
[yes])
AC_DEFINE(
[HAVE_POSIX_FADVISE],
[1],
[Define to 1 if you have the posix_fadvise unction.] )],
[AC_MSG_RESULT(
[no]) ])
AC_LANG_POP(C) ])
])
dnl Function to determine the operating system
AC_DEFUN([LIBEWF_DETERMINE_OPERATING_SYSTEM],
[ac_libewf_target_string="$target";
AS_IF(
[test "x$ac_libewf_target_string" = x],
[ac_libewf_target_string="$build"])
AS_CASE(
[$ac_libewf_target_string],
[*cygwin*], [ac_libewf_operating_system="Cygwin";],
[*darwin*], [ac_libewf_operating_system="Darwin";],
[*freebsd*], [ac_libewf_operating_system="FreeBSD";],
[*netbsd*], [ac_libewf_operating_system="NetBSD";],
[*openbsd*], [ac_libewf_operating_system="OpenBSD";],
[*linux*], [ac_libewf_operating_system="Linux";],
[*mingw*], [ac_libewf_operating_system="MingW";],
[*solaris*], [ac_libewf_operating_system="SunOS";],
[*], [ac_libewf_operating_system="Unknown";])
AC_DEFINE_UNQUOTED(
LIBEWF_OPERATING_SYSTEM,
"$ac_libewf_operating_system",
[Defines the fallback operating system string.]) ])
dnl Function to detect if Python build environment is available
AC_DEFUN([LIBEWF_CHECK_PYTHON_DEVEL],
[AC_REQUIRE([AM_PATH_PYTHON])
dnl Check for Python include path
AC_MSG_CHECKING(
[for Python include path])
PYTHON_INCLUDE_DIR=`$PYTHON -c "import distutils.sysconfig;print distutils.sysconfig.get_python_inc() "`;
AC_MSG_RESULT(
[$PYTHON_INCLUDE_DIR])
AC_SUBST(
[PYTHON_CPPFLAGS],
[-I$PYTHON_INCLUDE_DIR])
AS_IF(
[test ! -r $PYTHON_INCLUDE_DIR/Python.h],
[AC_MSG_ERROR(
[Missing Python include file])])
dnl Check for Python library path
AC_MSG_CHECKING(
[for Python library path])
python_path=`$PYTHON -c "import distutils.sysconfig;print distutils.sysconfig.get_python_lib() "`;
AC_MSG_RESULT(
[$python_path])
AC_SUBST(
[PYTHON_LDFLAGS],
["-L$python_path -lpython$PYTHON_VERSION"])
python_site=`echo $python_path | sed "s/config/site-packages/"`;
AC_SUBST(
[PYTHON_SITE_PKG],
[$python_site])
dnl Determine the Python libraries which must be linked in when embedding
AC_MSG_CHECKING(
[for Python extra libraries])
PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig;conf = distutils.sysconfig.get_config_var;print conf('LOCALMODLIBS')+' '+conf('LIBS')"`;
AC_MSG_RESULT(
[$PYTHON_EXTRA_LIBS])
AC_SUBST(
[PYTHON_EXTRA_LIBS]) ])
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