[Spice-devel] [PATCH] m4: Add macro for --with-sasl

[Pavel Grunt]

Imported from spice-gtk e3c455b86dba0f924165fe0dc51583f48aecc8fb.
It is not used by spice-common, but both server and client can use it.
---
 m4/spice-deps.m4 | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/m4/spice-deps.m4 b/m4/spice-deps.m4
index cb2b4c0..3579db5 100644
--- a/m4/spice-deps.m4
+++ b/m4/spice-deps.m4
@@ -263,3 +263,56 @@ AS_IF([test "x$1" != x],
              [missing_gstreamer_elements="no"])
       ])
 ])
+
+# SPICE_CHECK_SASL
+# ----------------
+# Adds a --with-sasl switch to allow using SASL for authentication.
+# Checks whether the required library is available. If it is present,
+# it will return the flags to use in SASL_CFLAGS and SASL_LIBS variables,
+# and it will define a HAVE_SASL preprocessor symbol.
+# ----------------
+AC_DEFUN([SPICE_CHECK_SASL], [
+    AC_ARG_WITH([sasl],
+      [AS_HELP_STRING([--with-sasl=@<:@yes/no/auto@:>@],
+                      [use cyrus SASL for authentication @<:@default=auto@:>@])],
+                      [],
+                      [with_sasl="auto"])
+
+    SASL_CFLAGS=
+    SASL_LIBS=
+    enable_sasl=no
+    if test "x$with_sasl" != "xno"; then
+      if test "x$with_sasl" != "xyes" && test "x$with_sasl" != "xauto"; then
+        SASL_CFLAGS="-I$with_sasl"
+        SASL_LIBS="-L$with_sasl"
+      fi
+      old_cflags="$CFLAGS"
+      old_libs="$LIBS"
+      CFLAGS="$CFLAGS $SASL_CFLAGS"
+      LIBS="$LIBS $SASL_LIBS"
+      AC_CHECK_HEADER([sasl/sasl.h],[with_sasl=yes])
+      if test "x$with_sasl" = "xyes" ; then
+        AC_CHECK_LIB([sasl2], [sasl_client_init],[with_sasl2=yes],[with_sasl2=no])
+      fi
+      if test "x$with_sasl2" = "xno" && test "x$with_sasl" = "xyes" ; then
+        AC_CHECK_LIB([sasl], [sasl_client_init],[with_sasl=yes],[with_sasl=no])
+      fi
+      if test "x$with_sasl2" = "xyes"; then
+        SASL_LIBS="$SASL_LIBS -lsasl2"
+      elif test "x$with_sasl" = "xyes"; then
+        SASL_LIBS="$SASL_LIBS -lsasl"
+      elif test "x$with_sasl" != "xauto"; then
+        AC_MSG_ERROR([Missing required Cyrus SASL development package])
+      fi
+      CFLAGS="$old_cflags"
+      LIBS="$old_libs"
+      if test "x$with_sasl2" = "xyes" || test "x$with_sasl" = "xyes" ; then
+        AC_DEFINE_UNQUOTED([HAVE_SASL], 1,
+          [whether Cyrus SASL is available for authentication])
+        enable_sasl=yes
+      fi
+    fi
+    AM_CONDITIONAL([HAVE_SASL], [test "x$with_sasl2" = "xyes" || test "x$with_sasl" = "xyes"])
+    AC_SUBST([SASL_CFLAGS])
+    AC_SUBST([SASL_LIBS])
+])
-- 
2.5.0