[messagingmenu-sharp: 3/4] configure: compare which's result against "x", not "xno"

[Mirco M. M. Bauer <mmmbauer src gnome org>]

commit 68bebcd0a499a7640f9063d67459868b21e5c02c
Author: Andrés G. Aragoneses <knocte gmail com>
Date:   Fri Jan 30 17:02:54 2015 +0100

    configure: compare which's result against "x", not "xno"
    
    This was apparently copy-pasted from the AC_PATH_PROG checks above.
    `which` doesn't return a "no" result if it fails, unlike AC_PATH_PROG.
    
    This typo would make the configure phase pass even if there were no
    gapi tools installed.

 configure.ac |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 6a7882f..5ee43ba 100644
--- a/configure.ac
+++ b/configure.ac
@@ -107,7 +107,7 @@ AC_PATH_PROG(GAPI_PARSER, gapi2-parser, no)
 if test "x$GAPI_PARSER" = "xno"; then
        AC_MSG_CHECKING(for gapi2-parser.exe)
        GAPI_PARSER=`$WHICH gapi2-parser.exe`
-       if test "x$GAPI_PARSER" = "xno" ; then
+       if test "x$GAPI_PARSER" = "x" ; then
                AC_MSG_ERROR(['gapi2-parser'/'gapi2-parser.exe' not found.])
        fi
        AC_MSG_RESULT($GAPI_PARSER)
@@ -119,7 +119,7 @@ AC_PATH_PROG(GAPI_FIXUP, gapi2-fixup, no)
 if test "x$GAPI_FIXUP" = "xno"; then
        AC_MSG_CHECKING(for gapi2-fixup.exe)
        GAPI_FIXUP=`$WHICH gapi2-fixup.exe`
-       if test "x$GAPI_FIXUP" = "xno" ; then
+       if test "x$GAPI_FIXUP" = "x" ; then
                AC_MSG_ERROR(['gapi2-fixup'/'gapi2-fixup.exe' not found.])
        fi
        AC_MSG_RESULT($GAPI_FIXUP)
@@ -131,7 +131,7 @@ AC_PATH_PROG(GAPI_CODEGEN, gapi2-codegen, no)
 if test "x$GAPI_CODEGEN" = "xno"; then
        AC_MSG_CHECKING(for gapi2_codegen.exe)
        GAPI_CODEGEN=`$WHICH gapi2_codegen.exe`
-       if test "x$GAPI_CODEGEN" = "xno" ; then
+       if test "x$GAPI_CODEGEN" = "x" ; then
                AC_MSG_ERROR(['gapi2-codegen'/'gapi2_codegen.exe' not found.])
        fi
        AC_MSG_RESULT([$GAPI_CODEGEN])