perldl.conf - add GD_DEFINE option

sisyphus wants to be able to define -DNONDLL

perldl.conf

@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 # -*-perl-*-
- 
+
 # PDL Configuration options
 
 # You can edit this here or say 'perl Makefile.PL PDLCONF=file'
@@ -62,7 +62,7 @@
 # 0 -> don't use
 # true -> force use
 
-        WITH_POSIX_THREADS => undef,    
+        WITH_POSIX_THREADS => undef,
 
         POSIX_THREADS_INC  => undef,  # '-I/usr/pthread/include'
         POSIX_THREADS_LIBS => undef,  # '-L/usr/pthread -lpthreadGC2'
@@ -130,40 +130,40 @@
         WITH_PLPLOT          => 0, # undef means Leave it up to PDL to decide
         WHERE_PLPLOT_LIBS    => undef, # let PDL search for plplot installation
         WHERE_PLPLOT_INCLUDE => undef, # let PDL search for plplot installation
-        
+
 # Example manual settings:
 #    WITH_PLPLOT          => 1,                           # Build PLPLOT interface
 #    WHERE_PLPLOT_LIBS    => '/usr/local/plplot/lib',     # PLplot lib dir
 #    WHERE_PLPLOT_INCLUDE => '/usr/local/plplot/include', # PLplot include dir
 
-        
+
 # Whether or not to build the PDL::Slatec module
 # false -> don't use
 # true -> force use
 
         WITH_SLATEC => undef,  # Leave it up to PDL to decide
-        
+
 # Whether or not to build the PDL::Minuit module
 # false -> don't use
 # true -> force use
 
        WITH_MINUIT => undef,   # Leave it up to PDL to decide
 
-# If MINUIT_LIB is undef a standalone version of Minuit will be compiled 
-# and PDL::Minuit will link to this library (fortran code can be found 
+# If MINUIT_LIB is undef a standalone version of Minuit will be compiled
+# and PDL::Minuit will link to this library (fortran code can be found
 # at Lib/Minuit/minuitlib)
-# If you want to try to link directly to the Minuit present 
+# If you want to try to link directly to the Minuit present
 # in the CERN library libpacklib.a, include the full path to the library
 # here, e.g.,  MINUIT_LIB => '/usr/local/lib/libpacklib.a',
 
-       MINUIT_LIB => undef, 
+       MINUIT_LIB => undef,
 
 # Whether or not to build the PDL::GSL module
 # false -> don't use
 # true -> force use
 
         WITH_GSL => undef,     # Leave it up to PDL to decide
-        
+
 # Link flags for the GSL libs, e.g. '-L/usr/local/lib -lgsl -lm'
         GSL_LIBS => undef, # use gsl-config
 
@@ -185,6 +185,7 @@
         WITH_GD => undef,      # Leave it up to PDL to decide
         GD_LIBS => undef,
         GD_INC => undef,
+        GD_DEFINE => '',       # If anything needs to be defined.
 
 # Whether or not to build the PDL::GIS::Proj module
 # false -> don't use
@@ -197,8 +198,8 @@
 # N.B. These are array ref values and *not* strings
 #
 #       PROJ_LIBS => [ 'C:/_32/msys/1.0/local/lib'],
-#       PROJ_INC => [ 'C:/_32/msys/1.0/local/include'], 
-        
+#       PROJ_INC => [ 'C:/_32/msys/1.0/local/include'],
+
 # Do we build PDL::IO::Browser?
 # default -> do not build
 #