1 files changed, 302 insertions, 0 deletions
diff --git a/common/m4/gst-args.m4 b/common/m4/gst-args.m4
new file mode 100755
index 0000000..1781af4
--- /dev/null
+++ b/common/m4/gst-args.m4
@@ -0,0 +1,302 @@
+dnl configure-time options shared among gstreamer modules
+
+dnl AG_GST_ARG_DEBUG
+dnl AG_GST_ARG_PROFILING
+dnl AG_GST_ARG_VALGRIND
+dnl AG_GST_ARG_GCOV
+
+dnl AG_GST_ARG_EXAMPLES
+
+dnl AG_GST_ARG_WITH_PKG_CONFIG_PATH
+dnl AG_GST_ARG_WITH_PACKAGE_NAME
+dnl AG_GST_ARG_WITH_PACKAGE_ORIGIN
+
+dnl AG_GST_ARG_WITH_PLUGINS
+dnl AG_GST_CHECK_PLUGIN
+dnl AG_GST_DISABLE_PLUGIN
+
+dnl AG_GST_ARG_ENABLE_EXTERNAL
+dnl AG_GST_ARG_ENABLE_EXPERIMENTAL
+dnl AG_GST_ARG_ENABLE_BROKEN
+
+AC_DEFUN([AG_GST_ARG_DEBUG],
+[
+  dnl debugging stuff
+  AC_ARG_ENABLE(debug,
+    AC_HELP_STRING([--disable-debug],[disable addition of -g debugging info]),
+    [
+      case "${enableval}" in
+        yes) USE_DEBUG=yes ;;
+        no)  USE_DEBUG=no ;;
+        *)   AC_MSG_ERROR(bad value ${enableval} for --enable-debug) ;;
+      esac
+    ],
+    [USE_DEBUG=yes]) dnl Default value
+])
+
+AC_DEFUN([AG_GST_ARG_PROFILING],
+[
+  AC_ARG_ENABLE(profiling,
+    AC_HELP_STRING([--enable-profiling],
+      [adds -pg to compiler commandline, for profiling]),
+    [
+      case "${enableval}" in
+        yes) USE_PROFILING=yes ;;
+        no)  USE_PROFILING=no ;;
+        *)   AC_MSG_ERROR(bad value ${enableval} for --enable-profiling) ;;
+      esac
+    ], 
+    [USE_PROFILING=no]) dnl Default value
+])
+
+AC_DEFUN([AG_GST_ARG_VALGRIND],
+[
+  dnl valgrind inclusion
+  AC_ARG_ENABLE(valgrind,
+    AC_HELP_STRING([--disable-valgrind],[disable run-time valgrind detection]),
+    [
+      case "${enableval}" in
+        yes) USE_VALGRIND="$USE_DEBUG" ;;
+        no)  USE_VALGRIND=no ;;
+        *)   AC_MSG_ERROR(bad value ${enableval} for --enable-valgrind) ;;
+      esac
+    ],
+    [USE_VALGRIND="$USE_DEBUG"]) dnl Default value
+  VALGRIND_REQ="2.1"
+  if test "x$USE_VALGRIND" = xyes; then
+    PKG_CHECK_MODULES(VALGRIND, valgrind > $VALGRIND_REQ,
+      USE_VALGRIND="yes",
+      [
+        USE_VALGRIND="no"
+        AC_MSG_RESULT([no])
+      ])
+  fi
+  if test "x$USE_VALGRIND" = xyes; then
+    AC_DEFINE(HAVE_VALGRIND, 1, [Define if valgrind should be used])
+    AC_MSG_NOTICE(Using extra code paths for valgrind)
+  fi
+])
+
+AC_DEFUN([AG_GST_ARG_GCOV],
+[
+  AC_ARG_ENABLE(gcov,
+    AC_HELP_STRING([--enable-gcov],
+      [compile with coverage profiling instrumentation (gcc only)]),
+    enable_gcov=$enableval,
+    enable_gcov=no)
+  if test x$enable_gcov = xyes ; then
+    if test "x$GCC" != "xyes"
+    then
+      AC_MSG_ERROR([gcov only works if gcc is used])
+    fi
+
+    AS_COMPILER_FLAG(["-fprofile-arcs"],
+      [GCOV_CFLAGS="$GCOV_CFLAGS -fprofile-arcs"],
+      true)
+    AS_COMPILER_FLAG(["-ftest-coverage"],
+      [GCOV_CFLAGS="$GCOV_CFLAGS -ftest-coverage"],
+      true)
+    dnl remove any -O flags - FIXME: is this needed ?
+    GCOV_CFLAGS=`echo "$GCOV_CFLAGS" | sed -e 's/-O[[0-9]]*//g'`
+    dnl libtool 1.5.22 and lower strip -fprofile-arcs from the flags
+    dnl passed to the linker, which is a bug; -fprofile-arcs implicitly
+    dnl links in -lgcov, so we do it explicitly here for the same effect
+    GCOV_LIBS=-lgcov
+    AC_SUBST(GCOV_CFLAGS)
+    AC_SUBST(GCOV_LIBS)
+    GCOV=`echo $CC | sed s/gcc/gcov/g`
+    AC_SUBST(GCOV)
+
+    GST_GCOV_ENABLED=yes
+    AC_DEFINE_UNQUOTED(GST_GCOV_ENABLED, 1,
+      [Defined if gcov is enabled to force a rebuild due to config.h changing])
+    dnl if gcov is used, we do not want default -O2 CFLAGS
+    if test "x$GST_GCOV_ENABLED" = "xyes"
+    then
+      CFLAGS="-O0"
+      AC_SUBST(CFLAGS)
+      CXXFLAGS="-O0"
+      AC_SUBST(CXXFLAGS)
+      FFLAGS="-O0"
+      AC_SUBST(FFLAGS)
+      CCASFLAGS="-O0"
+      AC_SUBST(CCASFLAGS)
+      AC_MSG_NOTICE([gcov enabled, setting CFLAGS and friends to $CFLAGS])
+    fi
+  fi
+  AM_CONDITIONAL(GST_GCOV_ENABLED, test x$enable_gcov = xyes)
+])
+
+AC_DEFUN([AG_GST_ARG_EXAMPLES],
+[
+  AC_ARG_ENABLE(examples,
+    AC_HELP_STRING([--disable-examples], [disable building examples]),
+      [
+        case "${enableval}" in
+          yes) BUILD_EXAMPLES=yes ;;
+          no)  BUILD_EXAMPLES=no ;;
+          *)   AC_MSG_ERROR(bad value ${enableval} for --disable-examples) ;;
+        esac
+      ],
+      [BUILD_EXAMPLES=yes]) dnl Default value
+  AM_CONDITIONAL(BUILD_EXAMPLES,      test "x$BUILD_EXAMPLES" = "xyes")
+])
+
+AC_DEFUN([AG_GST_ARG_WITH_PKG_CONFIG_PATH],
+[
+  dnl possibly modify pkg-config path
+  AC_ARG_WITH(pkg-config-path, 
+     AC_HELP_STRING([--with-pkg-config-path],
+                    [colon-separated list of pkg-config(1) dirs]),
+     [
+       export PKG_CONFIG_PATH=${withval}
+       AC_MSG_NOTICE(Set PKG_CONFIG_PATH to $PKG_CONFIG_PATH)
+     ])
+])
+
+
+dnl This macro requires that GST_CVS is set to yes or no (release)
+AC_DEFUN([AG_GST_ARG_WITH_PACKAGE_NAME],
+[
+  dnl package name in plugins
+  AC_ARG_WITH(package-name,
+    AC_HELP_STRING([--with-package-name],
+      [specify package name to use in plugins]),
+    [
+      case "${withval}" in
+        yes) AC_MSG_ERROR(bad value ${withval} for --with-package-name) ;;
+        no)  AC_MSG_ERROR(bad value ${withval} for --with-package-name) ;;
+        *)   GST_PACKAGE_NAME="${withval}" ;;
+      esac
+    ], 
+    [
+      P=$1
+      if test "x$P" = "x"
+      then
+        P=$PACKAGE_NAME
+      fi
+      
+      dnl default value
+      if test "x$GST_CVS" = "xyes"
+      then
+        dnl nano >= 1
+        GST_PACKAGE_NAME="$P CVS/prerelease"
+      else
+        GST_PACKAGE_NAME="$P source release"
+      fi
+    ]
+  )
+  AC_MSG_NOTICE(Using $GST_PACKAGE_NAME as package name)
+  AC_DEFINE_UNQUOTED(GST_PACKAGE_NAME, "$GST_PACKAGE_NAME",
+      [package name in plugins])
+  AC_SUBST(GST_PACKAGE_NAME)
+])
+
+AC_DEFUN([AG_GST_ARG_WITH_PACKAGE_ORIGIN],
+[
+  dnl package origin URL
+  AC_ARG_WITH(package-origin,
+    AC_HELP_STRING([--with-package-origin],
+      [specify package origin URL to use in plugins]),
+    [
+      case "${withval}" in
+        yes) AC_MSG_ERROR(bad value ${withval} for --with-package-origin) ;;
+        no)  AC_MSG_ERROR(bad value ${withval} for --with-package-origin) ;;
+        *)   GST_PACKAGE_ORIGIN="${withval}" ;;
+      esac
+    ], 
+    [GST_PACKAGE_ORIGIN="[Unknown package origin]"] dnl Default value
+  )
+  AC_MSG_NOTICE(Using $GST_PACKAGE_ORIGIN as package origin)
+  AC_DEFINE_UNQUOTED(GST_PACKAGE_ORIGIN, "$GST_PACKAGE_ORIGIN",
+      [package origin])
+  AC_SUBST(GST_PACKAGE_ORIGIN)
+])
+
+dnl sets WITH_PLUGINS to the list of plug-ins given as an argument
+dnl also clears GST_PLUGINS_ALL and GST_PLUGINS_SELECTED
+AC_DEFUN([AG_GST_ARG_WITH_PLUGINS],
+[
+  AC_ARG_WITH(plugins,
+    AC_HELP_STRING([--with-plugins],
+      [comma-separated list of dependencyless plug-ins to compile]),
+    [WITH_PLUGINS=$withval],
+    [WITH_PLUGINS=])
+
+  GST_PLUGINS_ALL=""
+  GST_PLUGINS_SELECTED=""
+
+  AC_SUBST(GST_PLUGINS_ALL)
+  AC_SUBST(GST_PLUGINS_SELECTED)
+])
+
+dnl AG_GST_CHECK_PLUGIN(PLUGIN-NAME)
+dnl
+dnl This macro adds the plug-in <PLUGIN-NAME> to GST_PLUGINS_ALL. Then it
+dnl checks if the plug-in is present in WITH_PLUGINS, and if so adds it to
+dnl GST_PLUGINS_SELECTED.
+dnl
+dnl The macro will call AM_CONDITIONAL(USE_PLUGIN_<PLUGIN-NAME>, ...) to allow
+dnl control of what is built in Makefile.ams.
+AC_DEFUN([AG_GST_CHECK_PLUGIN],
+[
+  GST_PLUGINS_ALL="$GST_PLUGINS_ALL [$1]"
+  if [[ -z "$WITH_PLUGINS" ]] || echo " [$WITH_PLUGINS] " | tr , ' ' | grep -i " [$1] " > /dev/null; then
+    GST_PLUGINS_SELECTED="$GST_PLUGINS_SELECTED [$1]"
+  fi
+  AM_CONDITIONAL([USE_PLUGIN_]translit([$1], a-z, A-Z), echo " $GST_PLUGINS_SELECTED " | grep -i " [$1] " > /dev/null)
+])
+
+dnl AG_GST_DISABLE_PLUGIN(PLUGIN-NAME)
+dnl
+dnl This macro disables the plug-in <PLUGIN-NAME> by removing it from
+dnl GST_PLUGINS_SELECTED.
+AC_DEFUN([AG_GST_DISABLE_PLUGIN],
+[
+  GST_PLUGINS_SELECTED=`echo " $GST_PLUGINS_SELECTED " | $SED -e 's/ [$1] / /'`
+  AM_CONDITIONAL([USE_PLUGIN_]translit([$1], a-z, A-Z), false)
+])
+
+AC_DEFUN([AG_GST_ARG_ENABLE_EXTERNAL],
+[
+  AG_GST_CHECK_FEATURE(EXTERNAL, [building of plug-ins with external deps],,
+    HAVE_EXTERNAL=yes, enabled,
+    [
+      AC_MSG_NOTICE(building external plug-ins)
+      BUILD_EXTERNAL="yes"
+    ],[
+      AC_MSG_WARN(all plug-ins with external dependencies will not be built)
+      BUILD_EXTERNAL="no"
+    ])
+  # make BUILD_EXTERNAL available to Makefile.am
+  AM_CONDITIONAL(BUILD_EXTERNAL, test "x$BUILD_EXTERNAL" = "xyes")
+])
+
+dnl experimental plug-ins; stuff that hasn't had the dust settle yet
+dnl read 'builds, but might not work'
+AC_DEFUN([AG_GST_ARG_ENABLE_EXPERIMENTAL],
+[
+  AG_GST_CHECK_FEATURE(EXPERIMENTAL, [building of experimental plug-ins],,
+    HAVE_EXPERIMENTAL=yes, disabled,
+    [
+      AC_MSG_WARN(building experimental plug-ins)
+      BUILD_EXPERIMENTAL="yes"
+    ],[
+      AC_MSG_NOTICE(not building experimental plug-ins)
+      BUILD_EXPERIMENTAL="no"
+    ])
+  # make BUILD_EXPERIMENTAL available to Makefile.am
+  AM_CONDITIONAL(BUILD_EXPERIMENTAL, test "x$BUILD_EXPERIMENTAL" = "xyes")
+])
+
+dnl broken plug-ins; stuff that doesn't seem to build at the moment
+AC_DEFUN([AG_GST_ARG_ENABLE_BROKEN],
+[
+  AG_GST_CHECK_FEATURE(BROKEN, [building of broken plug-ins],,
+    HAVE_BROKEN=yes, disabled,
+    [
+      AC_MSG_WARN([building broken plug-ins -- no bug reports on these, only patches ...])
+    ],[
+      AC_MSG_NOTICE([not building broken plug-ins])
+    ])
+])