build-sys: Use AX_DEFINE_DIR macro instead of setting AM_CFLAGS

This makes the compiler command line a bit shorter, useful for compiling with make V=1.

configure.ac

@@ -99,7 +99,7 @@ AC_DEFINE_UNQUOTED([GETTEXT_PACKAGE],["$GETTEXT_PACKAGE"],[Gettext package])
 AM_GLIB_GNU_GETTEXT
 
 pulselocaledir='${prefix}/${DATADIRNAME}/locale'
-AC_SUBST(pulselocaledir)
+AX_DEFINE_DIR(PULSE_LOCALEDIR, pulselocaledir, [Gettext locale dir])
 
 
 #### Determine host OS ####
@@ -966,6 +966,9 @@ AC_SUBST(DBUS_LIBS)
 AM_CONDITIONAL([HAVE_DBUS], [test "x$HAVE_DBUS" = x1])
 AS_IF([test "x$HAVE_DBUS" = "x1"], AC_DEFINE([HAVE_DBUS], 1, [Have D-Bus.]))
 
+PA_MACHINE_ID="${localstatedir}/lib/dbus/machine-id"
+AX_DEFINE_DIR(PA_MACHINE_ID, PA_MACHINE_ID, [D-Bus machine-id file])
+
 # HAL and BlueZ depend on D-Bus: So double check if they were explicitly enabled.
 if test "x$HAVE_DBUS" != "x1" ; then
     HAVE_HAL=0
@@ -1086,11 +1089,11 @@ fi
 #### PulseAudio system runtime dir ####
 
 PA_SYSTEM_RUNTIME_PATH="${localstatedir}/run/pulse"
-AC_SUBST(PA_SYSTEM_RUNTIME_PATH)
+AX_DEFINE_DIR(PA_SYSTEM_RUNTIME_PATH, PA_SYSTEM_RUNTIME_PATH, [System runtime dir])
 PA_SYSTEM_CONFIG_PATH="${localstatedir}/lib/pulse"
-AC_SUBST(PA_SYSTEM_CONFIG_PATH)
+AX_DEFINE_DIR(PA_SYSTEM_CONFIG_PATH, PA_SYSTEM_CONFIG_PATH, [System config dir])
 PA_SYSTEM_STATE_PATH="${localstatedir}/lib/pulse"
-AC_SUBST(PA_SYSTEM_STATE_PATH)
+AX_DEFINE_DIR(PA_SYSTEM_STATE_PATH, PA_SYSTEM_STATE_PATH, [System state dir])
 
 #### Mac OSX specific stuff #####
 
@@ -1166,6 +1169,7 @@ AC_ARG_WITH(
         [modlibexecdir=$withval], [modlibexecdir="${libdir}/pulse-${PA_MAJORMINOR}/modules"])
 
 AC_SUBST(modlibexecdir)
+AX_DEFINE_DIR(PA_DLSEARCHPATH, modlibexecdir, [Modules dir])
 
 AC_ARG_WITH(
         [udev-rules-dir],
@@ -1240,6 +1244,7 @@ echo "
     prefix:                        ${prefix}
     sysconfdir:                    ${sysconfdir}
     localstatedir:                 ${localstatedir}
+    modlibexecdir:                 ${modlibexecdir}
     System Runtime Path:           ${PA_SYSTEM_RUNTIME_PATH}
     System State Path:             ${PA_SYSTEM_STATE_PATH}
     System Config Path:            ${PA_SYSTEM_CONFIG_PATH}

m4/ax_define_dir.m4

@@ -0,0 +1,49 @@
+# ===========================================================================
+#       http://www.gnu.org/software/autoconf-archive/ax_define_dir.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_DEFINE_DIR(VARNAME, DIR [, DESCRIPTION])
+#
+# DESCRIPTION
+#
+#   This macro sets VARNAME to the expansion of the DIR variable, taking
+#   care of fixing up ${prefix} and such.
+#
+#   VARNAME is then offered as both an output variable and a C preprocessor
+#   symbol.
+#
+#   Example:
+#
+#     AX_DEFINE_DIR([DATADIR], [datadir], [Where data are placed to.])
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Stepan Kasal <kasal@ucw.cz>
+#   Copyright (c) 2008 Andreas Schwab <schwab@suse.de>
+#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+#   Copyright (c) 2008 Alexandre Oliva
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 6
+
+AU_ALIAS([AC_DEFINE_DIR], [AX_DEFINE_DIR])
+AC_DEFUN([AX_DEFINE_DIR], [
+  prefix_NONE=
+  exec_prefix_NONE=
+  test "x$prefix" = xNONE && prefix_NONE=yes && prefix=$ac_default_prefix
+  test "x$exec_prefix" = xNONE && exec_prefix_NONE=yes && exec_prefix=$prefix
+dnl In Autoconf 2.60, ${datadir} refers to ${datarootdir}, which in turn
+dnl refers to ${prefix}.  Thus we have to use `eval' twice.
+  eval ax_define_dir="\"[$]$2\""
+  eval ax_define_dir="\"$ax_define_dir\""
+  AC_SUBST($1, "$ax_define_dir")
+  AC_DEFINE_UNQUOTED($1, "$ax_define_dir", [$3])
+  test "$prefix_NONE" && prefix=NONE
+  test "$exec_prefix_NONE" && exec_prefix=NONE
+])

src/Makefile.am

@@ -55,15 +55,9 @@ AM_CFLAGS = \
 	-I$(top_builddir)/src/modules \
 	$(PTHREAD_CFLAGS) -D_POSIX_PTHREAD_SEMANTICS \
 	-DPA_BUILDDIR=\"$(abs_builddir)\" \
-	-DPA_DLSEARCHPATH=\"$(modlibexecdir)\" \
 	-DPA_DEFAULT_CONFIG_DIR=\"$(PA_DEFAULT_CONFIG_DIR)\" \
 	-DPA_BINARY=\"$(PA_BINARY)\" \
-	-DPA_SYSTEM_RUNTIME_PATH=\"$(PA_SYSTEM_RUNTIME_PATH)\" \
-	-DPA_SYSTEM_CONFIG_PATH=\"$(PA_SYSTEM_CONFIG_PATH)\" \
-	-DPA_SYSTEM_STATE_PATH=\"$(PA_SYSTEM_STATE_PATH)\" \
 	-DAO_REQUIRE_CAS \
-	-DPULSE_LOCALEDIR=\"$(pulselocaledir)\" \
-	-DPA_MACHINE_ID=\"$(localstatedir)/lib/dbus/machine-id\" \
 	-DPA_ALSA_PATHS_DIR=\"$(alsapathsdir)\" \
 	-DPA_ALSA_PROFILE_SETS_DIR=\"$(alsaprofilesetsdir)\"