Merge branch 'fam' into 'master'

Meson: Build fam module

See merge request GNOME/glib!71

configure.ac

@@ -1651,8 +1651,7 @@ FAM_LIBS=
 if test "x$should_disable_fam" = "xno"; then
 AC_CHECK_LIB(fam, FAMOpen,
   [AC_CHECK_HEADERS(fam.h,
-    [AC_DEFINE(HAVE_FAM, [], [Define if we have FAM])
+    [AC_CHECK_LIB(fam, FAMNoExists,
-     AC_CHECK_LIB(fam, FAMNoExists,
      		  AC_DEFINE(HAVE_FAM_NO_EXISTS, [], [Define if we have FAMNoExists in fam]))
      FAM_LIBS="-lfam"]
      fam_support=yes,

gio/Makefile.am

@@ -820,6 +820,7 @@ gio-2.0.lib: libgio-2.0.la gio.def
 	$(AM_V_GEN) lib.exe -machine:@LIB_EXE_MACHINE_FLAG@ -name:libgio-2.0-$(LT_CURRENT_MINUS_AGE).dll -def:$(builddir)/gio.def -out:$@
 
 bin_PROGRAMS = gio-querymodules glib-compile-schemas glib-compile-resources gsettings
+EXTRA_DIST += gio-querymodules-wrapper.py
 
 glib_compile_resources_LDADD = libgio-2.0.la 		\
 	$(top_builddir)/gobject/libgobject-2.0.la	\

gio/fam/gfamfilemonitor.map

@@ -0,0 +1,8 @@
+{
+global:
+  g_io_module_load;
+  g_io_module_unload;
+  g_io_module_query;
+local:
+  *;
+};

gio/fam/meson.build

@@ -0,0 +1,36 @@
+# FIXME: We should use subdir_done() instead of if blocks, but it's broken in
+# meson 0.46.1. See https://github.com/mesonbuild/meson/issues/3700.
+if get_option('fam')
+  fam_dep = cc.find_library('fam')
+  fam_c_args = ['-DG_DISABLE_DEPRECATED'] + gio_c_args
+  if cc.has_function('FAMNoExists', dependencies : fam_dep)
+    fam_c_args += '-DHAVE_FAM_NO_EXISTS=1'
+  endif
+
+  deps = [
+    fam_dep,
+    libglib_dep,
+    libgobject_dep,
+    libgio_dep,
+  ]
+
+  symbol_map = join_paths(meson.current_source_dir(), 'gfamfilemonitor.map')
+  fam_ldflags = cc.get_supported_link_arguments([
+    '-Wl,--version-script,' + symbol_map,
+    '-Wl,-no-undefined',
+  ])
+
+  module = shared_module('giofam', 'gfamfilemonitor.c',
+    include_directories : [gmoduleinc],
+    dependencies : deps,
+    c_args : fam_c_args,
+    link_args : fam_ldflags,
+    link_depends : symbol_map,
+    install_dir : glib_giomodulesdir,
+    install : true,
+  )
+
+  if not meson.is_cross_build()
+    meson.add_install_script('../gio-querymodules-wrapper.py', gio_querymodules.full_path(), glib_giomodulesdir)
+  endif
+endif

gio/gio-querymodules-wrapper.py

@@ -0,0 +1,9 @@
+#!/usr/bin/env python3
+
+import os
+import subprocess
+import sys
+
+if not os.environ.get('DESTDIR'):
+  print('GIO module cache creation...')
+  subprocess.call([sys.argv[1], sys.argv[2]])

gio/meson.build

@@ -753,11 +753,6 @@ if host_system == 'windows'
   internal_deps += [ giowin32_lib ]
 endif
 
-# FIXME: FAM support
-#if HAVE_FAM
-#  subdir('fam')
-#endif
-
 if have_bash
   install_data([
     'completion/gapplication',
@@ -894,7 +889,7 @@ executable('gresource', 'gresource-tool.c',
   link_args : noseh_link_args,
   dependencies : [libelf, libgio_dep, libgobject_dep, libgmodule_dep, libglib_dep])
 
-executable('gio-querymodules', 'gio-querymodules.c', 'giomodule-priv.c',
+gio_querymodules = executable('gio-querymodules', 'gio-querymodules.c', 'giomodule-priv.c',
   install : true,
   c_args : gio_c_args,
   # intl.lib is not compatible with SAFESEH
@@ -952,6 +947,8 @@ if enable_systemtap
     install : true)
 endif
 
+subdir('fam')
+
 if host_system != 'windows'
   subdir('tests')
 endif

meson_options.txt

@@ -73,3 +73,8 @@ option('force_posix_threads',
        type : 'boolean',
        value : false,
        description : 'Also use posix threads in case the platform defaults to another implementation (on Windows for example)')
+
+option('fam',
+       type : 'boolean',
+       value : false,
+       description : 'Use fam for file system monitoring')