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+++ b/README
@@ -88,6 +88,20 @@ Guile requires the following external packages:
conservative garbage collector used by Guile. It is available
from http://www.hpl.hp.com/personal/Hans_Boehm/gc/ .
+ - pkg-config
+
+ Guile's ./configure script uses pkg-config to discover the correct
+ compile and link options for libgc. If you don't have pkg-config
+ installed, or you have a version of libgc that doesn't provide a
+ .pc file, you can work around this by setting some environment
+ variables before running ./configure:
+
+ - PKG_CONFIG=true
+
+ - BDW_GC_CFLAGS=<compile flags for picking up libgc headers>
+
+ - BDW_GC_LIBS=<linker flags for picking up the libgc library>
+
Special Instructions For Some Systems =====================================