+ lttng_system_rundir="$withval"
+], [
+ lttng_system_rundir="/var/run/lttng"
+])
+AC_DEFINE_UNQUOTED([LTTNG_SYSTEM_RUNDIR], ["$lttng_system_rundir"],
+ [LTTng system runtime directory])
+
+AC_CHECK_PROG([BUILD_GEN_TP_EXAMPLES], [python], ["yes"])
+AM_CONDITIONAL([BUILD_GEN_TP_EXAMPLES], [test "x$BUILD_GEN_TP_EXAMPLES" = "xyes"])
+
+# Set $IN_GIT_REPO if we're in the Git repository; the `bootstrap` file
+# is not distributed in tarballs.
+AS_IF([test -f "$srcdir/bootstrap"], [in_git_repo=yes], [in_git_repo=no])
+AM_CONDITIONAL([IN_GIT_REPO], [test "x$in_git_repo" = "xyes"])
+
+# Enable building man pages (user's intention).
+AC_ARG_ENABLE(
+ man-pages,
+ AS_HELP_STRING(
+ [--disable-man-pages],
+ [Do not build and install man pages (already built in a distributed tarball)]
+ ),
+ [man_pages_opt=$enableval],
+ [man_pages_opt=yes]
+)
+
+# Check for asciidoc and xmlto if we enabled building the man pages.
+have_asciidoc_xmlto=no
+
+AS_IF([test "x$man_pages_opt" = "xyes"], [
+ AC_PATH_PROG([ASCIIDOC], [asciidoc], [no])
+ AC_PATH_PROG([XMLTO], [xmlto], [no])
+
+ AS_IF([test "x$ASCIIDOC" = "xno" || test "x$XMLTO" = "xno"], [
+ AS_IF([test "x$in_git_repo" = "xyes"], [
+ # This is an error because we're in the Git repo, which
+ # means the man pages are not already generated for us,
+ # thus asciidoc/xmlto are required because we were asked
+ # to build the man pages.
+ AC_MSG_ERROR([
+Both asciidoc and xmlto are needed to build the LTTng-UST man pages. Use
+--disable-man-pages to disable building the man pages, in which case
+they will not be installed.
+ ])
+ ], [
+ # Only warn here: since we're in the tarball, the man
+ # pages should already be generated at this point, thus
+ # asciidoc/xmlto are not strictly required.
+ AC_MSG_WARN([
+Both asciidoc and xmlto are needed to build the LTTng-UST man pages.
+Note that the man pages are already built in this distribution tarball,
+so asciidoc and xmlto are only needed if you intend to modify their
+sources. Use --disable-man-pages to completely disable building
+and installing the man pages.
+ ])
+ ])
+ ], [
+ have_asciidoc_xmlto=yes
+ ])
+])
+
+# Export man page build condition: build the man pages if the user
+# asked for it, and if the tools are available.
+AM_CONDITIONAL([MAN_PAGES_OPT], [test "x$man_pages_opt" != "xno"])
+AM_CONDITIONAL([HAVE_ASCIIDOC_XMLTO], [test "x$have_asciidoc_xmlto" = "xyes"])
+
+# Default values
+AC_DEFUN([_AC_DEFINE_AND_SUBST], [
+ AC_DEFINE_UNQUOTED([CONFIG_$1], [$2], [$1])
+ $1="$2"
+ AC_SUBST([$1])