[Devel] -lm and ft2demos

[Owen Taylor]

When building ft2demos-2.1.9 I ran into the following error:

src/ftview.c:70: undefined reference to `pow'
/home/otaylor/cvs/rpms/freetype/freetype-2.1.9/ft2demos-2.1.9/obj/graph.a(gblender.o)(.text+0xe7):
 In function `gblender_set_gamma_table':
/home/otaylor/cvs/rpms/freetype/freetype-2.1.9/ft2demos-2.1.9/graph/gblender.c:35:
 undefined reference to `pow'

The following patch fixed for me:

--- ft2demos-2.1.9/graph/x11/rules.mk.mathlib   2004-08-04
16:11:22.534818408 -0400
+++ ft2demos-2.1.9/graph/x11/rules.mk   2004-08-04 16:11:35.317875088
-0400
@@ -70,7 +70,7 @@
   ifeq ($(PLATFORM),unix)
     GRAPH_LINK += $(X11_LIB:%=-R%)
   endif
-  GRAPH_LINK += $(X11_LIB:%=-L%) -lX11
+  GRAPH_LINK += $(X11_LIB:%=-L%) -lX11 -lm
  
   # Solaris needs a -lsocket in GRAPH_LINK.
   #

But I'm not entirely sure it is the right fix - it might be better to
modify the default value of GRAPH_LINK in ft2demos/Makefile to 
include $(MATH).

Regards,
                                                Owen

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