DIST OOT: use build_dir version.i file

Requires the change of priority for include file in AM_CPPFLAGS and
that the version.h file include a "system header" version.i instead of a
local version.

Enable the passing of value from version.i to a OOT build done from a distribution
tarball. Enable a packager to touch files in custom_modifications and
generate a valid version.i file to be used in a OOT build from tarball.

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>

diff --git a/configure.ac b/configure.ac
index 2139cd3c6bb283984363850523930fb1e926086d..d79f9fcadd684879a76a814a974e7facfacba126 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -958,7 +958,13 @@ AM_CONDITIONAL([HAVE_FLEX], [test "x$have_flex" = "xyes"])
 AM_CFLAGS="-Wall -fno-strict-aliasing $PTHREAD_CFLAGS"
 AC_SUBST(AM_CFLAGS)
 
-AM_CPPFLAGS="-I\$(top_srcdir)/include -I\$(top_builddir)/include -I\$(top_srcdir)/src -include config.h $AM_CPPFLAGS"
+# The order in which the include folders are searched is important.
+# The top_builddir should always be searched first in the event that a build
+# time generated file is included. An example of this is the "version.i" file.
+# In a scenario where lttng-tools is built from a distribution tarball and in a
+# out-of-tree manner, the generated "version.i" has priority on the one from
+# the source (distribution tarball) and must be found first.
+AM_CPPFLAGS="-I\$(top_builddir)/include -I\$(top_srcdir)/include -I\$(top_srcdir)/src -include config.h $AM_CPPFLAGS"
 AC_SUBST(AM_CPPFLAGS)
 
 lttngincludedir="${includedir}/lttng"

diff --git a/include/Makefile.am b/include/Makefile.am
index f7cb8b13efc62aa6a30e1026263728ae1bb19eec..26d16ed367e3bd6def0598f33098ced895167558 100644 (file)
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -51,6 +51,9 @@ version_verbose_0 = @echo "  GEN       " $@;
 
 version.i:
        $(version_verbose)rm -f version.i.tmp; \
+       if (test ! -f version.i && test -f "$(top_srcdir)/include/version.i"); then \
+               cp "$(top_srcdir)/include/version.i" version.i; \
+       fi; \
        if (test -r "$(top_srcdir)/bootstrap" && test -r "$(top_srcdir)/.git") && \
                        test -x "`which git 2>&1;true`"; then \
                GIT_VERSION_STR="`cd "$(top_srcdir)" && git describe --tags --dirty`"; \

diff --git a/include/version.h b/include/version.h
index 0f3f7c80c2d5f165a73699fa7e0f956868d16e02..0eaf5958b6e665cb23c289c8565d370cb08f973f 100644 (file)
--- a/include/version.h
+++ b/include/version.h
@@ -18,6 +18,6 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#include "version.i"
+#include <version.i>
 
 #endif /* VERSION_H */