configure: Add global --enable-ruby-gems and --with-rubygemdir options

This provides the options to build and install ruby gems for components
providing them, such as vici.

diff --git a/configure.ac b/configure.ac
index 2ea3742d0a88a8769ccc8a02652688b107dc75bf..01951709f13c0fc4fb87bc73d53573905ceb8b7b 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -68,6 +68,7 @@ ARG_WITH_SET([capabilities],         [no], [set capability dropping library. Cur
 ARG_WITH_SET([mpz_powm_sec],         [yes], [use the more side-channel resistant mpz_powm_sec in libgmp, if available])
 ARG_WITH_SET([dev-headers],          [no], [install strongSwan development headers to directory.])
 ARG_WITH_SET([printf-hooks],         [auto], [force the use of a specific printf hook implementation (auto, builtin, glibc, vstr).])
+ARG_WITH_SET([rubygemdir],           ["gem environment gemdir"], [path to install ruby gems to])
 
 if test -n "$PKG_CONFIG"; then
        systemdsystemunitdir_default=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
@@ -285,6 +286,7 @@ ARG_ENABL_SET([integrity-test], [enable integrity testing of libstrongswan and p
 ARG_DISBL_SET([load-warning],   [disable the charon plugin load option warning in starter.])
 ARG_ENABL_SET([mediation],      [enable IKEv2 Mediation Extension.])
 ARG_ENABL_SET([unwind-backtraces],[use libunwind to create backtraces for memory leaks and segfaults.])
+ARG_ENABL_SET([ruby-gems],      [enable installation of provided ruby gems.])
 # compile options
 ARG_ENABL_SET([coverage],       [enable lcov coverage report generation.])
 ARG_ENABL_SET([leak-detective], [enable malloc hooks to find memory leaks.])
@@ -1152,6 +1154,17 @@ if test x$coverage = xtrue; then
        CFLAGS="${CFLAGS} -g -O0"
 fi
 
+if test x$ruby_gems = xtrue; then
+       AC_PATH_PROG([GEM], [gem], [], [$PATH:/bin:/usr/bin:/usr/local/bin])
+       if test x$GEM = x; then
+               AC_MSG_ERROR(RubyGems package manager not found)
+       fi
+       if test "x$rubygemdir" = "xgem environment gemdir"; then
+               rubygemdir=$($GEM environment gemdir)
+       fi
+       AC_SUBST(RUBYGEMDIR, "$rubygemdir")
+fi
+
 # ===============================================
 #  collect plugin list for strongSwan components
 # ===============================================
@@ -1511,6 +1524,7 @@ AM_CONDITIONAL(USE_SWANCTL, test x$swanctl = xtrue)
 AM_CONDITIONAL(USE_SVC, test x$svc = xtrue)
 AM_CONDITIONAL(USE_SYSTEMD, test x$systemd = xtrue)
 AM_CONDITIONAL(USE_LEGACY_SYSTEMD, test -n "$systemdsystemunitdir" -a "x$systemdsystemunitdir" != xno)
+AM_CONDITIONAL(USE_RUBY_GEMS, test x$ruby_gems = xtrue)
 
 # ========================
 #  set global definitions