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-rw-r--r--INSTALL9
1 files changed, 9 insertions, 0 deletions
diff --git a/INSTALL b/INSTALL
index 51f26bf..b5acedc 100644
--- a/INSTALL
+++ b/INSTALL
@@ -359,6 +359,15 @@ build the GNU C Library:
better code. As of release time, GCC 5.3 is the newest compiler
verified to work to build the GNU C Library.
+ For multi-arch support it is recommended to use a GCC which has
+ been built with support for GNU indirect functions. This ensures
+ that correct debugging information is generated for functions
+ selected by IFUNC resolvers. This support can either be enabled by
+ configuring GCC with '--enable-gnu-indirect-function', or by
+ enabling it by default by setting 'default_gnu_indirect_function'
+ variable for a particular architecture in the GCC source file
+ 'gcc/config.gcc'.
+
You can use whatever compiler you like to compile programs that use
the GNU C Library.