# AS_AVIFILE 0.1.0 # CXXFLAGS and LIBS for avifile # taken from Autostar Sandbox, http://autostars.sourceforge.net/ # constructed by careful cross-pollination from various sources and lots of # hard labour dnl Usage: dnl AS_AVIFILE(MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) dnl Test for avifile, and defines dnl - AVIFILE_CXXFLAGS (C++ compiler flags) dnl - AVIFILE_LDFLAGS (linker flags, stripping and path) dnl as well as set HAVE_AVIFILE to yes or no dnl dnl FIXME: should define AVIFILE_VERSION dnl dnl prerequisites: dnl - working C++ compiler dnl - usable libstdc++ dnl - AC_PATH_XTRA AC_DEFUN(AS_AVIFILE, [ HAVE_AVIFILE="no" dnl first look for avifile-config AC_PATH_PROG(AVIFILE_CONFIG, avifile-config, no) min_avifile_version=ifelse([$1], ,0.7.0,$1) if test "x$AVIFILE_CONFIG" != "xno"; then dnl now that we have it, we need to save libs and cflags AVIFILE_LDFLAGS=`avifile-config --libs` AVIFILE_CXXFLAGS=`avifile-config --cflags` AC_SUBST(AVIFILE_LDFLAGS) AC_SUBST(AVIFILE_CXXFLAGS) HAVE_AVIFILE="yes" fi dnl we got this far, now start checking if we have the right version if test "x$HAVE_AVIFILE" = "xyes"; then AC_MSG_CHECKING(for avifile - version >= $min_avifile_version) dnl first get the version number from avifile-config avifile_major_version=`$AVIFILE_CONFIG $avifile_args --version | \ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` avifile_minor_version=`$AVIFILE_CONFIG $avifile_args --version | \ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` avifile_micro_version=`$AVIFILE_CONFIG $avifile_config_args --version | \ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` dnl now run a short C app that tells us if the version is ok or not dnl all of this is boilerplate code from other examples rm -f conf.avifiletest AC_TRY_RUN([ #include <stdio.h> #include <stdlib.h> #include <string.h> char* my_strdup (char *str) { char *new_str; if (str) { new_str = (char *) malloc ((strlen (str) + 1) * sizeof (char)); strcpy (new_str, str); } else new_str = NULL; return new_str; } int main () { int major, minor, micro; char *tmp_version; system ("touch conf.avifiletest"); /* HP/UX 9 (%@#!) writes to sscanf strings */ tmp_version = my_strdup ("$min_avifile_version"); if (sscanf (tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) { printf ("%s, bad version string\n", "$min_avifile_version"); exit (1); } if (($avifile_major_version > major) || (($avifile_major_version == major) && ($avifile_minor_version > minor)) || (($avifile_major_version == major) && ($avifile_minor_version == minor) && ($avifile_micro_version >= micro))) return 0; else { printf ("\n*** 'avifile-config --version' returned %d.%d.%d, but the minimum version\n", $avifile_major_version, $avifile_minor_version, $avifile_micro_version); printf ("*** of AVIFILE required is %d.%d.%d. If avifile-config is correct, then it is\n", major, minor, micro); printf ("*** best to upgrade to the required version.\n"); printf ("*** If avifile-config was wrong, set the environment variable AVIFILE_CONFIG\n"); printf ("*** to point to the correct copy of avifile-config, and remove the file\n"); printf ("*** config.cache (if it exists) before re-running configure\n"); return 1; } } ], [ AC_MSG_RESULT(yes) HAVE_AVIFILE="yes" ], [ HAVE_AVIFILE="no" ]) fi if test "x$HAVE_AVIFILE" = "xyes"; then dnl now try to compile a sample test app dnl first save whatever language we're currently testing in dnl AC_LANG_SAVE dnl AC_LANG_CPLUSPLUS AC_LANG_PUSH(C++) ac_save_CXXFLAGS=$CXXFLAGS ac_save_LDFLAGS=$LDFLAGS dnl add X flags, because it looks like avifile needs libXv and libXxf86vm CXXFLAGS="$XXCFLAGS $AVIFILE_CXXFLAGS" LDFLAGS="$LDFLAGS $AVIFILE_LDFLAGS $X_LIBS -lXv -lXxf86vm" AC_MSG_CHECKING(compilation of avifile test program) dnl try the compile AC_TRY_LINK([ #include <stdio.h> #include <stdlib.h> #include <avifile.h> #include <creators.h> ],[ /* function body */ IVideoDecoder *decoder; BITMAPINFOHEADER bh; decoder = Creators::CreateVideoDecoder (bh); ], AC_MSG_RESULT(succeeded) HAVE_AVIFILE="yes", AC_MSG_RESULT(failed) HAVE_AVIFILE="no", ) AC_LANG_RESTORE CXXFLAGS="$ac_save_CXXFLAGS" LDFLAGS="$ac_save_LDFLAGS" fi ])