build: Fix several issues on FreeBSD

 1. Fallback to fsync() if fdatasync() is not available.
 2. Check whether setnetgrent() has a return value.
 3. Check whether the system has SIGPOLL.
 4. Add configure option to disable test. mocklibc cannot be built on FreeBSD
    because of function prototype conflict.

https://bugs.freedesktop.org/show_bug.cgi?id=73821

5 files changed, 36 insertions, 2 deletions

diff --git a/Makefile.am b/Makefile.am
index 16bd0bc..39e226a 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,6 +1,10 @@
 ## Process this file with automake to produce Makefile.in
 
-SUBDIRS = actions data src docs po test
+SUBDIRS = actions data src docs po
+
+if BUILD_TEST
+SUBDIRS += test
+endif
 
 NULL =
 
diff --git a/configure.ac b/configure.ac
index 2128263..a7b0148 100644
--- a/configure.ac
+++ b/configure.ac
@@ -158,13 +158,32 @@ AC_CHECK_LIB(expat,XML_ParserCreate,[EXPAT_LIBS="-lexpat"],
 	     [AC_MSG_ERROR([Can't find expat library. Please install expat.])])
 AC_SUBST(EXPAT_LIBS)
 
-AC_CHECK_FUNCS(clearenv)
+AC_CHECK_FUNCS(clearenv fdatasync)
 
 if test "x$GCC" = "xyes"; then
   LDFLAGS="-Wl,--as-needed $LDFLAGS"
 fi
 
 dnl ---------------------------------------------------------------------------
+dnl - Check whether setnetgrent has a return value
+dnl ---------------------------------------------------------------------------
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+	#include <stddef.h>
+	#include <netdb.h>
+]], [[
+	int r = setnetgrent (NULL);]])],
+[AC_DEFINE([HAVE_SETNETGRENT_RETURN], 1, [Define to 1 if setnetgrent has return value])])
+
+dnl ---------------------------------------------------------------------------
+dnl - Check whether we want to build test
+dnl ---------------------------------------------------------------------------
+AC_ARG_ENABLE([test],
+              [AS_HELP_STRING([--disable-test], [Do not build tests])],
+              [enable_test=$enableval], [enable_test=yes])
+
+AM_CONDITIONAL(BUILD_TEST, [test "x$enable_test" = "xyes"])
+
+dnl ---------------------------------------------------------------------------
 dnl - Select wether to use libsystemd-login or ConsoleKit for session tracking
 dnl ---------------------------------------------------------------------------
 
diff --git a/src/polkitagent/polkitagenthelperprivate.c b/src/polkitagent/polkitagenthelperprivate.c
index 4417e70..cfa77fc 100644
--- a/src/polkitagent/polkitagenthelperprivate.c
+++ b/src/polkitagent/polkitagenthelperprivate.c
@@ -103,7 +103,12 @@ flush_and_wait ()
 {
   fflush (stdout);
   fflush (stderr);
+#ifdef HAVE_FDATASYNC
   fdatasync (fileno(stdout));
   fdatasync (fileno(stderr));
+#else
+  fsync (fileno(stdout));
+  fsync (fileno(stderr));
+#endif
   usleep (100 * 1000);
 }
diff --git a/src/polkitbackend/polkitbackendinteractiveauthority.c b/src/polkitbackend/polkitbackendinteractiveauthority.c
index 3bd2f0b..59028d5 100644
--- a/src/polkitbackend/polkitbackendinteractiveauthority.c
+++ b/src/polkitbackend/polkitbackendinteractiveauthority.c
@@ -2113,11 +2113,15 @@ get_users_in_net_group (PolkitIdentity                    *group,
   ret = NULL;
   name = polkit_unix_netgroup_get_name (POLKIT_UNIX_NETGROUP (group));
 
+#ifdef HAVE_SETNETGRENT_RETURN
   if (setnetgrent (name) == 0)
     {
       g_warning ("Error looking up net group with name %s: %s", name, g_strerror (errno));
       goto out;
     }
+#else
+  setnetgrent (name);
+#endif
 
   for (;;)
     {
diff --git a/src/polkitbackend/polkitbackendjsauthority.c b/src/polkitbackend/polkitbackendjsauthority.c
index c3885a9..c507595 100644
--- a/src/polkitbackend/polkitbackendjsauthority.c
+++ b/src/polkitbackend/polkitbackendjsauthority.c
@@ -1286,7 +1286,9 @@ get_signal_name (gint signal_number)
     _HANDLE_SIG (SIGTTIN);
     _HANDLE_SIG (SIGTTOU);
     _HANDLE_SIG (SIGBUS);
+#ifdef SIGPOLL
     _HANDLE_SIG (SIGPOLL);
+#endif
     _HANDLE_SIG (SIGPROF);
     _HANDLE_SIG (SIGSYS);
     _HANDLE_SIG (SIGTRAP);