[gtk+] Fix --enable-{cups,papi} handling

[Matthias Clasen <matthiasc src gnome org>]

commit a8715045ce60882fe45000b7a819b9bf1d93f379
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Aug 29 20:21:21 2009 -0400

    Fix --enable-{cups,papi} handling
    
    The configure script was not doing the right thing when these
    options where explicitly given. Reported by Marvin Schmidt in bug 593012.

 configure.in |   35 +++++++++++++++++++++++------------
 1 files changed, 23 insertions(+), 12 deletions(-)
---
diff --git a/configure.in b/configure.in
index fcb7ca5..7093a0a 100644
--- a/configure.in
+++ b/configure.in
@@ -1841,10 +1841,19 @@ AC_ARG_ENABLE(cups,
                               [disable cups print backend])],,
               [enable_cups=auto])
 
-if test "x$enable_cups" = "xauto"
-then
+if test "x$enable_cups" = "xno"; then
+  AM_CONDITIONAL(HAVE_CUPS, false)
+else
   AC_PATH_PROG(CUPS_CONFIG, cups-config, no)
-  if test "x$CUPS_CONFIG" != "xno"; then
+  if test "x$CUPS_CONFIG" = "xno"; then
+    if test "x$enable_cups" = "xauto"; then
+      AM_CONDITIONAL(HAVE_CUPS, false)
+    else
+      AC_MSG_ERROR([
+*** cups not found.
+])
+    fi
+  else
     CUPS_CFLAGS=`$CUPS_CONFIG --cflags | sed 's/-O[0-9]*//' | sed 's/-m[^\t]*//g'`
     CUPS_LIBS=`$CUPS_CONFIG --libs`
 
@@ -1865,7 +1874,8 @@ then
 
     AC_CHECK_HEADER(cups/cups.h,,AC_MSG_ERROR([[*** Sorry, cups-config present but cups/cups.h missing.]]))
   fi
-  AM_CONDITIONAL(HAVE_CUPS, test "x$CUPS_CONFIG" != "xno")
+
+  AM_CONDITIONAL(HAVE_CUPS, true)
 
   gtk_save_cflags="$CFLAGS"
   CFLAGS="$CUPS_CFLAGS"
@@ -1881,9 +1891,6 @@ then
   LIBS="$CUPS_LIBS"
   AC_CHECK_FUNCS(httpGetAuthString)
   LIBS="$gtk_save_libs"
-
-else
-  AM_CONDITIONAL(HAVE_CUPS, false)
 fi
 
 # Checks to see if we should compile with PAPI backend for GTK+
@@ -1894,19 +1901,23 @@ AC_ARG_ENABLE(papi,
                               [disable papi print backend])],,
              [enable_papi=auto])
 
-if test "x$enable_papi" = "xauto"
-then
+if test "x$enable_papi" = "xno"; then
+  AM_CONDITIONAL(HAVE_PAPI, false)
+else
   AC_MSG_CHECKING(libpapi)
   AC_CHECK_LIB(papi, papiServiceCreate, have_papi=yes, have_papi=no)
   if test $have_papi = yes; then
     AC_DEFINE([HAVE_PAPI], [], [Define to 1 if libpapi available])
   fi
   AM_CONDITIONAL(HAVE_PAPI, test $have_papi = yes)
-else
-  AM_CONDITIONAL(HAVE_PAPI, false)
+  if test "x$enable_papi" = "xyes" -a "x$have_papi" = "xno"; then
+    AC_MSG_ERROR([
+*** papi not found.
+])
+  fi
 fi
 
-AM_CONDITIONAL(HAVE_PAPI_CUPS, test $have_papi = yes && test "x$CUPS_CONFIG" != "xno")
+AM_CONDITIONAL(HAVE_PAPI_CUPS, test "x$have_papi" = "xyes" -a "x$CUPS_CONFIG" != "xno")
 
 gtk_save_cppflags="$CPPFLAGS"
 CPPFLAGS="$CPPFLAGS $GTK_DEP_CFLAGS $GDK_DEP_CFLAGS"