configure: Add --with-pkg-extra-version=VER for packagers/distributions.

This change adds a --with-pkg-extra-version option to ./configure to allow
packagers and distributions to fine tune the version displayed to the end
user to assist in support. It is also very useful when reporting bugs on
the official Quagga mailing lists.

There are two ways of utilsing this functionality:

      a) ./configure --with-pkg-extra-version=-wmo1
      b) EXTRAVERSION=-wmo1 ./configure

The latter is a common way for many distributions to add extra version
strings to signify their own patch level to a given package.

Also, minor whitespace fix in configure summary.

Signed-off-by: Joachim Nilsson <joachim.nilsson@westermo.se>
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>

diff --git a/configure.ac b/configure.ac
index 277bad55b67d882daa18d104c0742e10e2fd1d7b..0d6e6efff1e8dbcc6036d05174428729997b230b 100755 (executable)
--- a/configure.ac
+++ b/configure.ac
@@ -189,6 +189,9 @@ AC_PROG_LIBTOOL
 dnl ----------------------
 dnl Packages configuration
 dnl ----------------------
+AC_ARG_WITH(pkg-extra-version,
+       AS_HELP_STRING([--with-pkg-extra-version=VER], [add extra version field, for packagers/distributions]),
+       [EXTRAVERSION=$withval],)
 AC_ARG_ENABLE(vtysh,
 [  --enable-vtysh          include integrated vty shell for Quagga])
 AC_ARG_ENABLE(ipv6,
@@ -382,6 +385,16 @@ esac
 
 AC_SUBST(MULTIPATH_NUM)
 
+dnl -----------------------------------
+dnl Add extra version string to package
+dnl name, string and version fields.
+dnl -----------------------------------
+if test "x${EXTRAVERSION}" != "x" ; then
+  VERSION=${VERSION}${EXTRAVERSION}
+  PACKAGE_VERSION=${PACKAGE_VERSION}${EXTRAVERSION}
+  PACKAGE_STRING=${PACKAGE_STRING}${EXTRAVERSION}
+fi
+
 dnl ------------------------------------
 dnl Check C keywords and standard  types
 dnl ------------------------------------
@@ -1636,7 +1649,7 @@ echo "
 Quagga configuration
 --------------------
 quagga version          : ${PACKAGE_VERSION}
-host operating system  : ${host_os}
+host operating system   : ${host_os}
 source code location    : ${srcdir}
 compiler                : ${CC}
 compiler flags          : ${CFLAGS}