Description of problem:

pkgconfig 0.24 breaks the mono compiler when using the -pkg parameter:

----------------------
       -pkg:package1[,packageN]
              Reference assemblies for the given packages.

              The  compiler  will invoke pkg-config --libs on the set of pack-
              ages specified on the  command  line  to  obtain  libraries  and
              directories to compile the code.
----------------------

Calling the mono compiler with this parameter seems to be the default when compiling mono packages and so the problem is quite critical.


Version-Release number of selected component (if applicable):
1:0.24-2.fc14


How reproducible:
100%

Steps to Reproduce:
1. yum install gtk-sharp2-devel
2. yum install mono-core
3. echo "class test { static void Main() {}}" > test.cs
4. gmcs -pkg:gtk-sharp-2.0 test.cs
5. pkg-config --libs gtk-sharp-2.0


Actual results:
for 4.: error CS2007: Unrecognized command-line option: `-r\:/usr/lib/mono/gtk-sharp-2.0/pango-sharp.dll'

for 5.:
-r\:/usr/lib/mono/gtk-sharp-2.0/pango-sharp.dll -r\:/usr/lib/mono/gtk-sharp-2.0/atk-sharp.dll -r\:/usr/lib/mono/gtk-sharp-2.0/gdk-sharp.dll -r\:/usr/lib/mono/gtk-sharp-2.0/gtk-sharp.dll -r\:/usr/lib/mono/gtk-sharp-2.0/glib-sharp.dll

Expected results:
for 4.: no error message
for 5.:
-r:/usr/lib/mono/gtk-sharp-2.0/pango-sharp.dll -r:/usr/lib/mono/gtk-sharp-2.0/atk-sharp.dll -r:/usr/lib/mono/gtk-sharp-2.0/gdk-sharp.dll -r:/usr/lib/mono/gtk-sharp-2.0/gtk-sharp.dll -r:/usr/lib/mono/gtk-sharp-2.0/glib-sharp.dll

Please note the additional backslash before the ":" in the output of pkgconfig 0.24.