add LLVM_VERSION_MAJOR and _MINOR defines

This is useful for clients that want to maintain compatibility
across multiple releases of LLVM. Currently users like Klee and
Mesa all have to roll their own 'parse llvm-config --version
output and generate defines' solution.

Also reuse the new macros so that version information is less
redundant/likely to fall out of sync again in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150405 91177308-0d34-0410-b5e6-96231b3b80d8

CMakeLists.txt

@@ -10,7 +10,10 @@ set(CMAKE_MODULE_PATH
   "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules"
   )
 
-set(PACKAGE_VERSION "3.1svn")
+set(LLVM_VERSION_MAJOR 3)
+set(LLVM_VERSION_MINOR 1)
+
+set(PACKAGE_VERSION "${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}svn")
 
 set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 
@@ -411,8 +414,8 @@ install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/
 # TODO: make and install documentation.
 
 set(CPACK_PACKAGE_VENDOR "LLVM")
-set(CPACK_PACKAGE_VERSION_MAJOR 3)
+set(CPACK_PACKAGE_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
-set(CPACK_PACKAGE_VERSION_MINOR 1)
+set(CPACK_PACKAGE_VERSION_MINOR ${LLVM_VERSION_MINOR})
 add_version_info_from_vcs(CPACK_PACKAGE_VERSION_PATCH)
 include(CPack)
 

autoconf/configure.ac

@@ -32,6 +32,8 @@ dnl===-----------------------------------------------------------------------===
 dnl Initialize autoconf and define the package name, version number and
 dnl address for reporting bugs.
 AC_INIT([LLVM],[3.1svn],[http://llvm.org/bugs/])
+AC_DEFINE([LLVM_VERSION_MAJOR], [3], [Major version of the LLVM API])
+AC_DEFINE([LLVM_VERSION_MINOR], [1], [Minor version of the LLVM API])
 
 dnl Provide a copyright substitution and ensure the copyright notice is included
 dnl in the output of --version option of the generated configure script.

cmake/modules/LLVMConfig.cmake.in

@@ -1,5 +1,7 @@
 # This file provides information and services to the final user.
 
+set(LLVM_VERSION_MAJOR @LLVM_VERSION_MAJOR@)
+set(LLVM_VERSION_MINOR @LLVM_VERSION_MINOR@)
 set(LLVM_PACKAGE_VERSION @PACKAGE_VERSION@)
 
 set(LLVM_COMMON_DEPENDS @LLVM_COMMON_DEPENDS@)

configure

@@ -1898,6 +1898,16 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 
+cat >>confdefs.h <<\_ACEOF
+#define LLVM_VERSION_MAJOR 3
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define LLVM_VERSION_MINOR 1
+_ACEOF
+
+
 LLVM_COPYRIGHT="Copyright (c) 2003-2012 University of Illinois at Urbana-Champaign."
 
 
@@ -10453,7 +10463,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 10456 "configure"
+#line 10466 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H

include/llvm/Config/config.h.cmake

@@ -617,6 +617,12 @@
 /* Installation prefix directory */
 #cmakedefine LLVM_PREFIX "${LLVM_PREFIX}"
 
+/* Major version of the LLVM API */
+#cmakedefine LLVM_VERSION_MAJOR ${LLVM_VERSION_MAJOR}
+
+/* Minor version of the LLVM API */
+#cmakedefine LLVM_VERSION_MINOR ${LLVM_VERSION_MINOR}
+
 /* Define if the OS needs help to load dependent libraries for dlopen(). */
 #cmakedefine LTDL_DLOPEN_DEPLIBS ${LTDL_DLOPEN_DEPLIBS}
 

include/llvm/Config/config.h.in

@@ -615,6 +615,12 @@
 /* Installation prefix directory */
 #undef LLVM_PREFIX
 
+/* Major version of the LLVM API */
+#undef LLVM_VERSION_MAJOR
+
+/* Minor version of the LLVM API */
+#undef LLVM_VERSION_MINOR
+
 /* Define if the OS needs help to load dependent libraries for dlopen(). */
 #undef LTDL_DLOPEN_DEPLIBS
 

include/llvm/Config/llvm-config.h.cmake

@@ -106,4 +106,10 @@
 /* Installation prefix directory */
 #cmakedefine LLVM_PREFIX "${LLVM_PREFIX}"
 
+/* Major version of the LLVM API */
+#cmakedefine LLVM_VERSION_MAJOR ${LLVM_VERSION_MAJOR}
+
+/* Minor version of the LLVM API */
+#cmakedefine LLVM_VERSION_MINOR ${LLVM_VERSION_MINOR}
+
 #endif

include/llvm/Config/llvm-config.h.in

@@ -106,4 +106,10 @@
 /* Installation prefix directory */
 #undef LLVM_PREFIX
 
+/* Major version of the LLVM API */
+#undef LLVM_VERSION_MAJOR
+
+/* Minor version of the LLVM API */
+#undef LLVM_VERSION_MINOR
+
 #endif