improve CMakeList to have a config.h

CMakeLists.txt

@@ -84,6 +84,7 @@ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/bctoolbox.pc DESTINATION lib/pkgconfig
 include_directories(
 	include
 	src
+	${CMAKE_CURRENT_BINARY_DIR}
 )
 
 if (MBEDTLS_FOUND)
@@ -98,6 +99,10 @@ if(MSVC)
 	include_directories(${MSVC_INCLUDE_DIR})
 endif()
 
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config.h)
+set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/config.h PROPERTIES GENERATED ON)
+add_definitions("-DHAVE_CONFIG_H")
+
 set(STRICT_OPTIONS_CPP )
 set(STRICT_OPTIONS_C )
 if(NOT MSVC)

config.h.cmake

+/***************************************************************************
+* config.h.cmake
+* Copyright (C) 2014  Belledonne Communications, Grenoble France
+*
+****************************************************************************
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License
+* as published by the Free Software Foundation; either version 2
+* of the License, or (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program; if not, write to the Free Software
+* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+*
+****************************************************************************/
+
+#cmakedefine PACKAGE "@PACKAGE@"
+#cmakedefine PACKAGE_NAME "@PACKAGE_NAME@"
+#cmakedefine PACKAGE_VERSION "@PACKAGE_VERSION@"
+#cmakedefine PACKAGE_STRING "@PACKAGE_STRING@"
+#cmakedefine PACKAGE_TARNAME "@PACKAGE_TARNAME@"
+#cmakedefine PACKAGE_BUGREPORT "@PACKAGE_BUGREPORT@"
+#cmakedefine PACKAGE_URL "@PACKAGE_URL@"
+#cmakedefine VERSION "@VERSION@"
+
+#cmakedefine HAVE_DTLS_SRTP

src/crypto_polarssl.c

@@ -17,6 +17,11 @@ along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 #include <stdlib.h>
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include "utils.h"
 #include <bctoolbox/crypto.h>