From eee71285b6fdd3e6956f7dd0c83d9701aeabcf84 Mon Sep 17 00:00:00 2001
From: Ralf Habacker <ralf.habacker@freenet.de>
Date: Tue, 3 Mar 2015 13:17:27 +0100
Subject: [PATCH] Keep cmake defines GLIB_VERSION_... in sync with autotools.

This patch adds autotools related cmake macros autoinit() and autodefine().

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=89284
---
 cmake/CMakeLists.txt                |  8 +++++-
 cmake/config.h.cmake                |  4 +++
 cmake/modules/MacrosAutotools.cmake | 51 +++++++++++++++++++++++++++++--------
 3 files changed, 51 insertions(+), 12 deletions(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index adc6d4b..6922129 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -15,7 +15,8 @@ endif(COMMAND cmake_policy)
 
 # detect version
 include(MacrosAutotools)
-autoversion(../configure.ac dbus)
+autoinit(../configure.ac)
+autoversion(dbus)
 # used by file version info
 set (DBUS_PATCH_VERSION "0")
 
@@ -183,6 +184,11 @@ if (UNIX AND NOT DBUS_DISABLE_ASSERT)
 	add_definitions(-DDBUS_BUILT_R_DYNAMIC)
 endif (UNIX AND NOT DBUS_DISABLE_ASSERT)
 
+if(DBUS_WITH_GLIB)
+    autodefine(GLIB_VERSION_MIN_REQUIRED)
+    autodefine(GLIB_VERSION_MAX_ALLOWED)
+endif()
+
 SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG}  -D_DEBUG")
 
 #########################################################################
diff --git a/cmake/config.h.cmake b/cmake/config.h.cmake
index cd4720c..88c2caa 100644
--- a/cmake/config.h.cmake
+++ b/cmake/config.h.cmake
@@ -96,6 +96,10 @@
 
 #cmakedefine DBUS_VA_COPY_AS_ARRAY @DBUS_VA_COPY_AS_ARRAY@
 
+#cmakedefine DBUS_WITH_GLIB 1
+#cmakedefine GLIB_VERSION_MIN_REQUIRED @GLIB_VERSION_MIN_REQUIRED@
+#cmakedefine GLIB_VERSION_MAX_ALLOWED  @GLIB_VERSION_MAX_ALLOWED@
+
 // headers
 /* Define to 1 if you have dirent.h */
 #cmakedefine   HAVE_DIRENT_H 1
diff --git a/cmake/modules/MacrosAutotools.cmake b/cmake/modules/MacrosAutotools.cmake
index 2b1c59d..a218db9 100644
--- a/cmake/modules/MacrosAutotools.cmake
+++ b/cmake/modules/MacrosAutotools.cmake
@@ -1,6 +1,21 @@
 #
+# cmake package for autotools support
+#
 # @Author Ralf Habacker
 # 
+
+#
+# load autotools configure file into an internal list named _configure_ac
+#
+macro(autoinit config)
+    set(_configure_ac_name ${config})
+    file(READ ${config} _configure_ac_raw)
+    # Convert file contents into a CMake list (where each element in the list
+    # is one line of the file)
+    STRING(REGEX REPLACE ";" "\\\\;" _configure_ac "${_configure_ac_raw}")
+    STRING(REGEX REPLACE "\n" ";" _configure_ac "${_configure_ac}")
+endmacro()
+
 # extracts version information from autoconf config file
 # and set related cmake variables
 # 
@@ -14,17 +29,16 @@
 #   ${prefix}_LIBRARY_REVISION
 #   ${prefix}_LIBRARY_CURRENT
 # 
-macro(autoversion config prefix)
-	file (READ ${config} _configure_ac)
-	string(TOUPPER ${prefix} prefix_upper)
-	string (REGEX REPLACE ".*${prefix}_major_version], .([0-9]+).*" "\\1" ${prefix_upper}_MAJOR_VERSION ${_configure_ac})
-	string (REGEX REPLACE ".*${prefix}_minor_version], .([0-9]+).*" "\\1" ${prefix_upper}_MINOR_VERSION ${_configure_ac})
-	string (REGEX REPLACE ".*${prefix}_micro_version], .([0-9]+).*" "\\1" ${prefix_upper}_MICRO_VERSION ${_configure_ac})
-	set (${prefix_upper}_VERSION ${${prefix_upper}_MAJOR_VERSION}.${${prefix_upper}_MINOR_VERSION}.${${prefix_upper}_MICRO_VERSION})
-	set (${prefix_upper}_VERSION_STRING "${${prefix_upper}_VERSION}")
-	string (REGEX REPLACE ".*LT_AGE=([0-9]+).*" "\\1" ${prefix_upper}_LIBRARY_AGE ${_configure_ac})
-	string (REGEX REPLACE ".*LT_CURRENT=([0-9]+).*" "\\1" ${prefix_upper}_LIBRARY_CURRENT ${_configure_ac})
-	string (REGEX REPLACE ".*LT_REVISION=([0-9]+).*" "\\1" ${prefix_upper}_LIBRARY_REVISION ${_configure_ac})
+macro(autoversion prefix)
+    string(TOUPPER ${prefix} prefix_upper)
+    string (REGEX REPLACE ".*${prefix}_major_version], .([0-9]+).*" "\\1" ${prefix_upper}_MAJOR_VERSION ${_configure_ac_raw})
+    string (REGEX REPLACE ".*${prefix}_minor_version], .([0-9]+).*" "\\1" ${prefix_upper}_MINOR_VERSION ${_configure_ac_raw})
+    string (REGEX REPLACE ".*${prefix}_micro_version], .([0-9]+).*" "\\1" ${prefix_upper}_MICRO_VERSION ${_configure_ac_raw})
+    set (${prefix_upper}_VERSION ${${prefix_upper}_MAJOR_VERSION}.${${prefix_upper}_MINOR_VERSION}.${${prefix_upper}_MICRO_VERSION})
+    set (${prefix_upper}_VERSION_STRING "${${prefix_upper}_VERSION}")
+    string (REGEX REPLACE ".*LT_AGE=([0-9]+).*" "\\1" ${prefix_upper}_LIBRARY_AGE ${_configure_ac_raw})
+    string (REGEX REPLACE ".*LT_CURRENT=([0-9]+).*" "\\1" ${prefix_upper}_LIBRARY_CURRENT ${_configure_ac_raw})
+    string (REGEX REPLACE ".*LT_REVISION=([0-9]+).*" "\\1" ${prefix_upper}_LIBRARY_REVISION ${_configure_ac_raw})
 endmacro()
 
 #
@@ -88,6 +102,21 @@ macro(autopackage name version url support_url)
 endmacro(autopackage)
 
 #
+# define a cmake variable from autotools AC_DEFINE statement
+#
+macro(autodefine name)
+    foreach(line ${_configure_ac})
+        if(line MATCHES ".*AC_DEFINE(.*${name}.*).*")
+            string (REGEX REPLACE ".*AC_DEFINE(.*).*" "\\1" value ${line})
+            string (REGEX REPLACE ".*,(.*),.*" "\\1" value2 ${value})
+            string (REPLACE "[" "" value3 ${value2})
+            string (REPLACE "]" "" value4 ${value3})
+            set(${name} ${value4})
+        endif()
+    endforeach()
+endmacro()
+
+#
 # parses config.h template and create cmake equivalent 
 # not implemented yet
 # 
-- 
1.8.4.5