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AC_INIT(README)
AC_CANONICAL_SYSTEM
AM_CONFIG_HEADER(config.h)
AM_INIT_AUTOMAKE(gstreamer-sharp, 0.9.5.99)
AM_MAINTAINER_MODE

AC_ARG_WITH(readme, AC_HELP_STRING([--with-readme], [This must be passed to configure indicating you have fully read and understand README]), readme_understanding="yes", readme_understanding="no")

if test ! "x$readme_understanding" = "xyes"; then
	AC_MSG_ERROR([You must pass --with-readme to indicate you have read and fully understand the implications in the README file])
fi

AC_PROG_INSTALL

PACKAGE_VERSION=gstreamer-sharp-0.10
AC_SUBST(PACKAGE_VERSION)

MONO_REQUIRED_VERSION=1.1
AC_SUBST(MONO_REQUIRED_VERSION)
PKG_CHECK_MODULES(MONO_DEPENDENCY, mono >= $MONO_REQUIRED_VERSION, has_mono=true, has_mono=false)

AM_PROG_LIBTOOL

if test "x$has_mono" = "xtrue"; then
GACUTIL_FLAGS='/package $(PACKAGE_VERSION) /gacdir $(libdir) /root $(DESTDIR)/$(libdir)'
GENERATED_SOURCES=generated/*.cs
AC_PATH_PROG(RUNTIME, mono, no)
AC_PATH_PROG(CSC, mcs, no)
if test `uname -s` = "Darwin"; then
        LIB_PREFIX=
        LIB_SUFFIX=.dylib
else
        LIB_PREFIX=.so
        LIB_SUFFIX=
fi
else
AC_PATH_PROG(CSC, csc.exe, no)
GACUTIL_FLAGS=
GENERATED_SOURCES=generated\\\\*.cs

if test x$CSC = "xno"; then
        AC_MSG_ERROR([You need to install either mono or .Net])
else
RUNTIME=
LIB_PREFIX=
LIB_SUFFIX=.dylib
fi
fi
                                                                                
CS="C#"
if test "x$CSC" = "xno" ; then
        AC_MSG_ERROR([No $CS compiler found])
fi
                                                                                
AC_PATH_PROG(GACUTIL, gacutil, no)
if test "x$GACUTIL" = "xno" ; then
        AC_MSG_ERROR([No gacutil tool found])
fi

AC_SUBST(RUNTIME)
AC_SUBST(CSC)
AC_SUBST(GACUTIL)
AC_SUBST(GACUTIL_FLAGS)
AC_SUBST(LIB_PREFIX)
AC_SUBST(LIB_SUFFIX)
AC_SUBST(GENERATED_SOURCES)

MONODOC_REQUIRED_VERSION=1.1
AC_SUBST(MONODOC_REQUIRED_VERSION)
PKG_CHECK_MODULES(MONODOC_DEPENDENCY, monodoc >= $MONODOC_REQUIRED_VERSION, enable_monodoc=yes, enable_monodoc=no)

if test "x$enable_monodoc" = "xyes"; then
	AC_PATH_PROG(MONODOCER, monodocer, no)
	AC_PATH_PROG(MDASSEMBLER, mdassembler, no)
	if test x$MONODOCER = xno -o x$MDASSEMBLER = xno; then
	   enable_monodoc=no
	fi
else
	MONODOCER=
	MDASSEMBLER=
fi

AC_SUBST(MONODOCER)
AC_SUBST(MDASSEMBLER)

MONODOC_SOURCESDIR=`pkg-config --variable=sourcesdir monodoc`
AC_SUBST(MONODOC_SOURCESDIR)

## Versions of dependencies
GTKSHARP_REQUIRED_VERSION=2.4.0
AC_SUBST(GTKSHARP_REQUIRED_VERSION)
PKG_CHECK_MODULES(BASE_DEPENDENCIES, gtk-sharp-2.0 >= $GTKSHARP_REQUIRED_VERSION)

## glib-sharp dependancy
GLIBSHARP_REQUIRED_VERSION=2.4.0
PKG_CHECK_MODULES(GLIBSHARP, glib-sharp-2.0 >= $GLIBSHARP_REQUIRED_VERSION)
AC_SUBST(GLIBSHARP_LIBS)

## probably should make gstreamer-plugins optional
## but generating conditionally the source is not really possible
GSTREAMER_REQUIRED_VERSION=0.10.3
GSTREAMER_PLUGINS_REQUIRED_VERSION=0.10.3
AC_SUBST(GSTREAMER_REQUIRED_VERSION)
AC_SUBST(GSTREAMER_PLUGINS_REQUIRED_VERSION)
PKG_CHECK_MODULES(GST,
gstreamer-base-0.10 >= $GSTREAMER_REQUIRED_VERSION
gstreamer-plugins-base-0.10 >= $GSTREAMER_PLUGINS_REQUIRED_VERSION,
enable_gst=yes, enable_gst=no 
)

AC_SUBST(GST_LIBS)
AC_SUBST(GST_CFLAGS)

if test "x$enable_gst" = "xno" ; then
      AC_MSG_ERROR([Install gstreamer and gstreamer-plugins])
fi

AM_CONDITIONAL(ENABLE_MONODOC, test "x$enable_monodoc" = "xyes")

## Check for the gapi programs
PKG_CHECK_MODULES(GAPI, gapi-2.0 >= $GTKSHARP_REQUIRED_VERSION)

AC_PATH_PROG(GAPI_CODEGEN, gapi2-codegen, no)
if test "x$GAPI_CODEGEN" = "xno"; then
        AC_MSG_ERROR([You need to install gtk-sharp-gapi])
fi
 
AC_PATH_PROG(GAPI_FIXUP, gapi2-fixup, no)
if test "x$GAPI_FIXUP" = "xno"; then
        AC_MSG_ERROR([You need to install gtk-sharp-gapi])
fi

AC_PATH_PROG(GAPI_PARSER, gapi2-parser, no)
if test "x$GAPI_PARSER" = "xno"; then
        AC_MSG_ERROR([You need to install gtk-sharp-gapi])
fi

AC_OUTPUT([
source/Makefile
gstreamer-sharp/Makefile
gstreamer-sharp/AssemblyInfo.cs
gstreamer-sharp/gstreamer-sharp.dll.config
gstreamer-sharp/glue/Makefile
doc/Makefile
sample/Makefile
gstreamer-sharp-0.10.pc
Makefile
])

echo "---"
echo "Configuration summary"
echo ""
echo "   * Installation prefix = $prefix"
echo "   * $CS compiler: $CSC"
echo "   * Documentation: $enable_monodoc ($MONODOC)"
echo ""
echo "---"