frontend: Get the username of the remote peer from a UNIX socket.

[sysdb.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 088a4b59fc994ad313dbd9540b1fc70901808b6d..baf1137b530197b1689be9106ff4f9751b70377b 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -344,6 +344,46 @@ AC_SUBST([PROFILING_LDFLAGS])
 m4_divert_once([HELP_ENABLE], [
 Build dependencies:])
 
+AC_CHECK_HEADERS([ucred.h])
+dnl On OpenBSD, sys/param.h is required for sys/ucred.h.
+AC_CHECK_HEADERS([sys/ucred.h], [], [],
+               [[ #include <sys/param.h> ]])
+
+AC_CHECK_TYPES([struct ucred],
+               [have_struct_ucred="yes"], [have_struct_ucred="no"],
+               [[
+#include <sys/socket.h>
+#include <sys/param.h>
+#if HAVE_UCRED_H
+#      include <ucred.h>
+#endif
+               ]])
+
+if test "x$have_struct_ucred" != "xyes"; then
+       AC_MSG_CHECKING([for struct ucred when using _GNU_SOURCE])
+       orig_CFLAGS="$CFLAGS"
+       CFLAGS="$CFLAGS -D_GNU_SOURCE"
+       dnl Don't reuse AC_CHECK_HEADERS; for one it'll use the cached value
+       dnl but also, it will print the "checking for" message a second time.
+       AC_COMPILE_IFELSE(
+                       [AC_LANG_PROGRAM(
+                               [[
+#include <sys/socket.h>
+#include <sys/param.h>
+#if HAVE_UCRED_H
+#      include <ucred.h>
+#endif
+                               ]],
+                               [if (sizeof(struct ucred)) return 0;]
+                       )],
+                       [have_struct_ucred="yes"], [have_struct_ucred="no"])
+       CFLAGS="$orig_CFLAGS"
+       if test "x$have_struct_ucred" = "xyes"; then
+               AC_DEFINE([_GNU_SOURCE], 1, [Define to enable GNU features.])
+       fi
+       AC_MSG_RESULT([$have_struct_ucred])
+fi
+
 dnl Testing.
 PKG_CHECK_MODULES([CHECK], [check >= 0.9.4],
                [unit_tests="yes"], [unit_tests="no"])
@@ -482,11 +522,11 @@ if test "x$have_libfacter" = "xyes"; then
        AC_MSG_CHECKING([for facter::facts::collection in -lfacter])
        AC_LINK_IFELSE(
                        [AC_LANG_PROGRAM(
-                               [[[ #include <facter/facts/collection.hpp> ]]],
-                               [[[
+                               [[ #include <facter/facts/collection.hpp> ]],
+                               [[
                                        facter::facts::collection facts;
                                        facts.add_default_facts();
-                               ]]]
+                               ]]
                        )],
                        [TEST_LIBS=$TEST_LIBS -lfacter],
                        [have_libfacter="yes"],