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bug#24416: address@hidden is broken


From: Danny Milosavljevic
Subject: bug#24416: address@hidden is broken
Date: Mon, 12 Sep 2016 08:49:36 +0200

As a workaround,

CPPFLAGS += -I${HOME}/.guix-profile/avr/include
LDFLAGS += -L${HOME}/.guix-profile/avr/lib/avr5 -L${HOME}/.guix-profile/avr/lib 
-B${HOME}/.guix-profile/avr/lib

works with avr-gcc 5.3.0. Unfortunately I don't know enough about avr-gcc to be 
able to permanently fix it.

I fixed part of it (I made it so that atmega32u4 exists in the first place) in 
master - but no idea what to do with the search path.

I'm pretty sure that if it uses CROSS_CPATH it's incorrect because cross-base 
has been changed from CROSS_CPATH to CROSS_C_INCLUDE_PATH, 
CROSS_CPLUS_INCLUDE_PATH etc in order to suppress warnings. If 
CROSS_C_INCLUDE_PATH overrides CROSS_CPATH (does it?) then setting CROSS_CPATH 
like avr.scm does does no good.

I propose to change it to the following:

diff --git a/gnu/packages/avr.scm b/gnu/packages/avr.scm
index 9873477..1e5fd73 100644
--- a/gnu/packages/avr.scm
+++ b/gnu/packages/avr.scm
@@ -59,9 +59,18 @@
                  #t))))
          ((#:configure-flags flags)
           `(delete "--disable-multilib" ,flags))))
-      (native-search-paths
+      (native-search-paths
        (list (search-path-specification
-              (variable "CROSS_CPATH")
+              (variable "CROSS_C_INCLUDE_PATH")
+              (files '("avr/include")))
+             (search-path-specification
+              (variable "CROSS_CPLUS_INCLUDE_PATH")
+              (files '("avr/include")))
+             (search-path-specification
+              (variable "CROSS_OBJC_INCLUDE_PATH")
+              (files '("avr/include")))
+             (search-path-specification
+              (variable "CROSS_OBJCPLUS_INCLUDE_PATH")
               (files '("avr/include")))
              (search-path-specification
               (variable "CROSS_LIBRARY_PATH")





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