[libgtop] Add Introspection support

[Chris Kühl <chriskuehl src gnome org>]

commit 50bb0d51b3479f0ad2a12a42f86c534115630090
Author: Maxim Ermilov <zaspire rambler ru>
Date:   Mon Jan 24 22:38:45 2011 +0300

    Add Introspection support
    
    https://bugzilla.gnome.org/show_bug.cgi?id=630915

 Makefile.am         |    6 ++-
 configure.in        |    7 +++-
 lib/Makefile.am     |   33 +++++++++++++++++
 m4/introspection.m4 |   96 +++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 138 insertions(+), 4 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 7c67b45..eca41ff 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,3 +1,4 @@
+ACLOCAL_AMFLAGS = -I m4
 
 if EXAMPLES
 EXAMPLES_DIR = examples
@@ -17,7 +18,8 @@ EXTRA_DIST = autogen.sh libgtop.spec.in copyright.txt \
 	intltool-extract.in \
 	intltool-merge.in \
 	libgtop.doap \
-	intltool-update.in
+	intltool-update.in \
+	m4/introspection.m4
 
 DISTCLEANFILES = \
 	intltool-extract \
@@ -33,4 +35,4 @@ pkgconfig_DATA = libgtop-2.0.pc
 libgtop-features.def: features.def
 	@LN_S@ $< $@
 
-DISTCHECK_CONFIGURE_FLAGS=--enable-gtk-doc
+DISTCHECK_CONFIGURE_FLAGS=--enable-gtk-doc --enable-introspection
diff --git a/configure.in b/configure.in
index c799a00..8ad31f0 100644
--- a/configure.in
+++ b/configure.in
@@ -25,7 +25,7 @@ m4_define([libgtop_server_version], [5])
 # Version code calculation
 m4_define([libgtop_version_code], [m4_eval(libgtop_major_version * 1000000 + libgtop_minor_version * 1000 + libgtop_micro_version)])
 
-AC_PREREQ(2.59)
+AC_PREREQ(2.62)
 AC_INIT([libgtop], [libgtop_version],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=libgtop])
 AC_CONFIG_SRCDIR(copyright.txt)
@@ -33,7 +33,10 @@ AC_CONFIG_HEADERS(config.h)
 
 AC_CANONICAL_HOST
 
-AM_INIT_AUTOMAKE
+AM_INIT_AUTOMAKE([-Wno-portability])
+AC_CONFIG_MACRO_DIR([m4])
+GOBJECT_INTROSPECTION_CHECK([0.6.7])
+
 AC_SUBST(ACLOCAL_AMFLAGS, [\${ACLOCAL_FLAGS}])
 
 AC_SUBST(LIBGTOP_MAJOR_VERSION, [libgtop_major_version])
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 5b3320b..4b00359 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -20,3 +20,36 @@ EXTRA_DIST			= lib.pl libgtop.sym
 
 CLEANFILES			= lib.c
 
+-include $(INTROSPECTION_MAKEFILE)
+INTROSPECTION_GIRS =
+INTROSPECTION_SCANNER_ARGS = --accept-unprefixed
+INTROSPECTION_COMPILER_ARGS =
+
+if HAVE_INTROSPECTION
+introspection_sources = $(libgtop_2_0_la_SOURCES) lib.c ../glibtop.h \
+			../include/glibtop/close.h ../include/glibtop/loadavg.h ../include/glibtop/prockernel.h ../include/glibtop/procstate.h \
+			../include/glibtop/sem_limits.h ../include/glibtop/uptime.h ../include/glibtop/command.h ../include/glibtop/mem.h ../include/glibtop/proclist.h \
+			../include/glibtop/proctime.h ../include/glibtop/shm_limits.h ../include/glibtop/version.h ../include/glibtop/cpu.h ../include/glibtop/msg_limits.h \
+			../include/glibtop/procmem.h ../include/glibtop/procuid.h ../include/glibtop/swap.h \
+			../include/glibtop/procsegment.h ../include/glibtop/sysdeps.h ../include/glibtop/global.h \
+			../include/glibtop/procsignal.h ../include/glibtop/union.h ../include/glibtop/gnuserv.h \
+			../include/glibtop/parameter.h ../include/glibtop/mountlist.h ../include/glibtop/fsusage.h ../include/glibtop/procmap.h ../include/glibtop/signal.h \
+			../include/glibtop/sysinfo.h ../include/glibtop/ppp.h ../include/glibtop/procargs.h ../include/glibtop/netload.h \
+			../include/glibtop/procwd.h ../include/glibtop/procaffinity.h \
+			../include/glibtop/netlist.h ../include/glibtop/procopenfiles.h ../include/glibtop/open.h
+
+GTop-2.0.gir: libgtop-2.0.la
+GTop_2_0_gir_INCLUDES = GObject-2.0
+GTop_2_0_gir_CFLAGS = $(INCLUDES)
+GTop_2_0_gir_LIBS = libgtop-2.0.la
+GTop_2_0_gir_FILES = $(introspection_sources)
+INTROSPECTION_GIRS += GTop-2.0.gir
+
+girdir = $(datadir)/gir-1.0
+gir_DATA = $(INTROSPECTION_GIRS)
+
+typelibdir = $(libdir)/girepository-1.0
+typelib_DATA = $(INTROSPECTION_GIRS:.gir=.typelib)
+
+CLEANFILES += $(gir_DATA) $(typelib_DATA)
+endif
diff --git a/m4/introspection.m4 b/m4/introspection.m4
new file mode 100644
index 0000000..91b9051
--- /dev/null
+++ b/m4/introspection.m4
@@ -0,0 +1,96 @@
+dnl -*- mode: autoconf -*-
+dnl Copyright 2009 Johan Dahlin
+dnl
+dnl This file is free software; the author(s) gives unlimited
+dnl permission to copy and/or distribute it, with or without
+dnl modifications, as long as this notice is preserved.
+dnl
+
+# serial 1
+
+m4_define([_GOBJECT_INTROSPECTION_CHECK_INTERNAL],
+[
+    AC_BEFORE([AC_PROG_LIBTOOL],[$0])dnl setup libtool first
+    AC_BEFORE([AM_PROG_LIBTOOL],[$0])dnl setup libtool first
+    AC_BEFORE([LT_INIT],[$0])dnl setup libtool first
+
+    dnl enable/disable introspection
+    m4_if([$2], [require],
+    [dnl
+        enable_introspection=yes
+    ],[dnl
+        AC_ARG_ENABLE(introspection,
+                  AS_HELP_STRING([--enable-introspection[=@<:@no/auto/yes@:>@]],
+                                 [Enable introspection for this build]),, 
+                                 [enable_introspection=auto])
+    ])dnl
+
+    AC_MSG_CHECKING([for gobject-introspection])
+
+    dnl presence/version checking
+    AS_CASE([$enable_introspection],
+    [no], [dnl
+        found_introspection="no (disabled, use --enable-introspection to enable)"
+    ],dnl
+    [yes],[dnl
+        PKG_CHECK_EXISTS([gobject-introspection-1.0],,
+                         AC_MSG_ERROR([gobject-introspection-1.0 is not installed]))
+        PKG_CHECK_EXISTS([gobject-introspection-1.0 >= $1],
+                         found_introspection=yes,
+                         AC_MSG_ERROR([You need to have gobject-introspection >= $1 installed to build AC_PACKAGE_NAME]))
+    ],dnl
+    [auto],[dnl
+        PKG_CHECK_EXISTS([gobject-introspection-1.0 >= $1], found_introspection=yes, found_introspection=no)
+    ],dnl
+    [dnl	
+        AC_MSG_ERROR([invalid argument passed to --enable-introspection, should be one of @<:@no/auto/yes@:>@])
+    ])dnl
+
+    AC_MSG_RESULT([$found_introspection])
+
+    INTROSPECTION_SCANNER=
+    INTROSPECTION_COMPILER=
+    INTROSPECTION_GENERATE=
+    INTROSPECTION_GIRDIR=
+    INTROSPECTION_TYPELIBDIR=
+    if test "x$found_introspection" = "xyes"; then
+       INTROSPECTION_SCANNER=`$PKG_CONFIG --variable=g_ir_scanner gobject-introspection-1.0`
+       INTROSPECTION_COMPILER=`$PKG_CONFIG --variable=g_ir_compiler gobject-introspection-1.0`
+       INTROSPECTION_GENERATE=`$PKG_CONFIG --variable=g_ir_generate gobject-introspection-1.0`
+       INTROSPECTION_GIRDIR=`$PKG_CONFIG --variable=girdir gobject-introspection-1.0`
+       INTROSPECTION_GIRDIR=${INTROSPECTION_GIRDIR/$datadir/\$(datadir)}
+       INTROSPECTION_TYPELIBDIR="$($PKG_CONFIG --variable=typelibdir gobject-introspection-1.0)"
+       INTROSPECTION_TYPELIBDIR=${INTROSPECTION_TYPELIBDIR/$libdir/\$(libdir)}
+       INTROSPECTION_CFLAGS=`$PKG_CONFIG --cflags gobject-introspection-1.0`
+       INTROSPECTION_LIBS=`$PKG_CONFIG --libs gobject-introspection-1.0`
+       INTROSPECTION_MAKEFILE=`$PKG_CONFIG --variable=datadir gobject-introspection-1.0`/gobject-introspection-1.0/Makefile.introspection
+    fi
+    AC_SUBST(INTROSPECTION_SCANNER)
+    AC_SUBST(INTROSPECTION_COMPILER)
+    AC_SUBST(INTROSPECTION_GENERATE)
+    AC_SUBST(INTROSPECTION_GIRDIR)
+    AC_SUBST(INTROSPECTION_TYPELIBDIR)
+    AC_SUBST(INTROSPECTION_CFLAGS)
+    AC_SUBST(INTROSPECTION_LIBS)
+    AC_SUBST(INTROSPECTION_MAKEFILE)
+
+    AM_CONDITIONAL(HAVE_INTROSPECTION, test "x$found_introspection" = "xyes")
+])
+
+
+dnl Usage:
+dnl   GOBJECT_INTROSPECTION_CHECK([minimum-g-i-version])
+
+AC_DEFUN([GOBJECT_INTROSPECTION_CHECK],
+[
+  _GOBJECT_INTROSPECTION_CHECK_INTERNAL([$1])
+])
+
+dnl Usage:
+dnl   GOBJECT_INTROSPECTION_REQUIRE([minimum-g-i-version])
+
+
+AC_DEFUN([GOBJECT_INTROSPECTION_REQUIRE],
+[
+  _GOBJECT_INTROSPECTION_CHECK_INTERNAL([$1], [require])
+])