diff options
Diffstat (limited to 'm4/vcd.m4')
| -rw-r--r-- | m4/vcd.m4 | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/m4/vcd.m4 b/m4/vcd.m4 new file mode 100644 index 000000000..917fc5128 --- /dev/null +++ b/m4/vcd.m4 @@ -0,0 +1,230 @@ +AC_DEFUN([VCD_SUPPORT], [ + AC_ARG_ENABLE(vcd, AS_HELP_STRING([--disable-vcd], [do not compile VCD plugin]), + enable_vcd=$enableval, enable_vcd=yes) + +dnl Force build of both vcd plugins, for now. +dnl AC_ARG_ENABLE(vcdo, AS_HELP_STRING([--disable-vcdo], [do not compile old VCD plugin]), +dnl enable_vcdo=$enableval, enable_vcdo=yes) +dnl + enable_vcdo="yes" + + AC_ARG_WITH(internal-vcdlibs, AS_HELP_STRING([--with-internal-vcdlibs], [force using internal libcdio/libvcd/libvcdinfo]), + [internal_vcdnav="$withval"], [internal_vcdnav="no"]) + + if test "x$enable_vcd" = "xyes"; then + dnl empty_array_size + AC_MSG_CHECKING([how to create empty arrays]) + + empty_array_size="xxx" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[struct { int foo; int bar[]; } doo;]])],[empty_array_size=""],[]) + + if test "x$empty_array_size" = "xxxx";then + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[struct { int foo; int bar[0]; } doo;]])],[empty_array_size="0"],[]) + fi + + if test "x$empty_array_size" = "xxxx" + then + AC_MSG_ERROR([compiler is unable to creaty empty arrays]) + else + AC_DEFINE_UNQUOTED(EMPTY_ARRAY_SIZE, $empty_array_size, + [what to put between the brackets for empty arrays]) + changequote(`,') + msg="[${empty_array_size}]" + changequote([,]) + AC_MSG_RESULT($msg) + fi + dnl empty_array_size + + if test "x$internal_vcdnav" = "xno" ; then + PKG_CHECK_MODULES([LIBCDIO], [libcdio >= 0.71], [], [internal_vcdnav=yes]) + PKG_CHECK_MODULES([LIBVCDINFO], [libvcdinfo >= 0.7.23], [], [internal_vcdnav=yes]) + if test "x$internal_vcdnav" = "xyes"; then + AC_MSG_RESULT([Use included libcdio/libvcdinfo support]) + fi + fi + + dnl check twice, fallback is internal copy + if test "x$internal_vcdnav" = "xno"; then + AC_DEFINE([HAVE_VCDNAV], [1], [Define this if you use external libcdio/libvcdinfo]) + else + AC_DEFINE_UNQUOTED(HOST_ARCH, "$host_os/$host_cpu", [host os/cpu identifier]) + + AC_DEFINE(_DEVELOPMENT_, [], enable warnings about being development release) + AC_HEADER_STDC + AC_CHECK_HEADERS(sys/stat.h stdint.h glob.h inttypes.h stdbool.h) + + if test "x$ac_cv_header_stdint_h" != "xyes" + then + AC_CHECK_SIZEOF(int, 4) + AC_CHECK_SIZEOF(long, 4) + AC_CHECK_SIZEOF(long long, 8) + fi + + dnl ISOC99_PRAGMA + AC_MSG_CHECKING([whether $CC supports ISOC99 _Pragma()]) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[_Pragma("pack(1)")]])],[ + ISOC99_PRAGMA=yes + AC_DEFINE(HAVE_ISOC99_PRAGMA, [], [Supports ISO _Pragma() macro]) + ],[ISOC99_PRAGMA=no]) + AC_MSG_RESULT($ISOC99_PRAGMA) + + dnl + dnl bitfield order + dnl + AC_MSG_CHECKING([bitfield ordering in structs]) + + dnl basic compile test for all platforms + AC_COMPILE_IFELSE([ +int main() { + struct { char bit_0:1, bit_12:2, bit_345:3, bit_67:2; } +#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4) + __attribute__((packed)) +#endif + bf = { 1,1,1,1 }; + switch (0) case 0: case sizeof(bf) == 1:; + return 0; +} +], [], AC_MSG_ERROR([compiler doesn't support bitfield structs])) + + + dnl run test + AC_RUN_IFELSE([ +int main() { + struct { char bit_0:1, bit_12:2, bit_345:3, bit_67:2; } +#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4) + __attribute__((packed)) +#endif + bf = { 1,1,1,1 }; + if (sizeof (bf) != 1) return 1; + return *((unsigned char*) &bf) != 0x4b; } +], bf_lsbf=1, [ + AC_RUN_IFELSE([ +int main() { + struct { char bit_0:1, bit_12:2, bit_345:3, bit_67:2; } +#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4) + __attribute__((packed)) +#endif + bf = { 1,1,1,1 }; + if (sizeof (bf) != 1) return 1; + return *((unsigned char*) &bf) != 0xa5; } +], bf_lsbf=0, AC_MSG_ERROR([unsupported bitfield ordering])) + ], + [case "$host" in + *-*-mingw32* | *-*-cygwin*) + bf_lsbf=1 + ;; + universal-*-darwin*) + bf_lsbf=0 + ;; + *) + AC_MSG_RESULT([unknown]) + AC_MSG_ERROR([value of bitfield test isn't known for $host +********************************************************************* +Value of bitfield test can't be found out for cross-compiling and we +don't know its value for host "$host". + +Because it's needed for VCD plugin, disable VCD by configure option +--disable-vcd or use external VCD library. +*********************************************************************]) + esac]) + + if test "x$cross_compiling" = "xyes"; then + TEXT=" (guessed)" + else + TEXT="" + fi + if test "x$bf_lsbf" = "x1"; then + AC_MSG_RESULT(LSBF${TEXT}) + AC_DEFINE(BITFIELD_LSBF, [], [compiler does lsbf in struct bitfields]) + else + AC_MSG_RESULT(MSBF${TEXT}) + fi + + AC_CHECK_HEADERS([errno.h fcntl.h \ + stdbool.h stdlib.h stdint.h stdio.h string.h \ + strings.h linux/version.h sys/cdio.h sys/stat.h \ + sys/types.h ]) + + LIBCDIO_CFLAGS='-I$(top_srcdir)/src/input/vcd/libcdio' + LIBCDIO_LIBS='$(top_builddir)/src/input/vcd/libcdio/libcdio.la' + LIBISO9660_LIBS='$(top_builddir)/src/input/vcd/libcdio/libiso9660.la' + LIBVCD_CFLAGS='-I$(top_srcdir)/src/input/vcd/libvcd' + LIBVCD_LIBS='$(top_builddir)/src/input/vcd/libvcd/libvcd.la' + LIBVCDINFO_LIBS='$(top_builddir)/src/input/vcd/libvcd/libvcdinfo.la' + + case $host_os in + darwin*) + AC_CHECK_HEADERS(IOKit/IOKitLib.h CoreFoundation/CFBase.h, [have_iokit_h="yes"]) + if test "x$have_iokit_h" = "xyes" ; then + AC_DEFINE([HAVE_DARWIN_CDROM], [1], [Define 1 if you have Darwin OS X-type CD-ROM support]) + fi + ;; + linux*) + AC_CHECK_HEADERS(linux/version.h) + AC_CHECK_HEADERS(linux/cdrom.h, [have_linux_cdrom_h="yes"]) + if test "x$have_linux_cdrom_h" = "xyes" ; then + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[ +#include <linux/cdrom.h> +struct cdrom_generic_command test; +int has_timeout=sizeof(test.timeout);]])], + [AC_DEFINE([HAVE_LINUX_CDROM_TIMEOUT], [1], [Define 1 if timeout is in cdrom_generic_command struct])],[]) + AC_DEFINE([HAVE_LINUX_CDROM], [1], [Define 1 if you have Linux-type CD-ROM support]) + fi + ;; + bsdi*) + AC_CHECK_HEADERS(dvd.h, [have_bsdi_dvd_h="yes"]) + if test "x$have_bsdi_dvd_h" = "xyes" ; then + AC_DEFINE([HAVE_BSDI_CDROM], [1], [Define 1 if you have BSDI-type CD-ROM support]) + fi + ;; + sunos*|sun*|solaris*) + AC_CHECK_HEADERS(sys/cdio.h) + AC_DEFINE([HAVE_SOLARIS_CDROM], [1], [Define 1 if you have Solaris CD-ROM support]) + ;; + cygwin*) + AC_DEFINE([CYGWIN], [1], [Define 1 if you are compiling using cygwin]) + AC_DEFINE([HAVE_WIN32_CDROM], [1], [Define 1 if you have MinGW CD-ROM support]) + LIBCDIO_LIBS="$LIBCDIO_LIBS -lwinmm" + LIBVCD_LIBS="$LIBVCD_LIBS -lwinmm" + ;; + mingw*) + AC_DEFINE([MINGW32], [1], [Define 1 if you are compiling using MinGW]) + AC_DEFINE([HAVE_WIN32_CDROM], [1], [Define 1 if you have MinGW CD-ROM support]) + ;; + freebsd4.*) + AC_DEFINE([HAVE_FREEBSD_CDROM], [1], [Define 1 if you have FreeBSD CD-ROM support]) + ;; + *) + AC_MSG_WARN(Don't have OS CD-reading support for ${host_os}...) + AC_MSG_WARN(Will use generic support.) + ;; + esac + AC_SUBST(LINUX_CDROM_TIMEOUT) + AC_SUBST(HAVE_BSDI_CDROM) + AC_SUBST(HAVE_DARWIN_CDROM) + AC_SUBST(HAVE_FREEBSD_CDROM) + AC_SUBST(HAVE_LINUX_CDROM) + AC_SUBST(HAVE_SOLARIS_CDROM) + AC_SUBST(HAVE_WIN32_CDROM) + AC_SUBST(LINUX_CDROM_TIMEOUT) + AC_SUBST(LIBVCD_SYSDEP) + + AC_CHECK_FUNCS( bzero memcpy ) + + AC_CHECK_MEMBER([struct tm.tm_gmtoff], + [AC_DEFINE(HAVE_TM_GMTOFF, 1, [Define if struct tm has the tm_gmtoff member.])], + [], [#include <time.h>]) + fi + fi + + AC_DEFINE([LIBCDIO_CONFIG_H], 1, [Get of rid system libcdio build configuration]) + AC_DEFINE([EXTERNAL_LIBCDIO_CONFIG_H], 1, [Get of rid system libcdio build configuration]) + AC_SUBST(LIBCDIO_CFLAGS) + AC_SUBST(LIBCDIO_LIBS) + AC_SUBST(LIBISO9660_LIBS) + AC_SUBST(LIBVCD_CFLAGS) + AC_SUBST(LIBVCD_LIBS) + AC_SUBST(LIBVCDINFO_LIBS) + AM_CONDITIONAL(HAVE_VCDNAV, [test "x$internal_vcdnav" = "xno"]) + AM_CONDITIONAL(ENABLE_VCD, [test "x$enable_vcd" = "xyes"]) +]) |