[Replicant] [system_core] [PATCH] Fix the build on Trisquel 9

[Denis 'GNUtoo' Carikli]

Without that fix we have:
    host C++: libbacktrace <= system/core/libbacktrace/BacktraceCurrent.cpp
    In file included from system/core/libbacktrace/Backtrace.cpp:27:
    system/core/include/backtrace/Backtrace.h:52:18: error:
    typedef redefinition with different types ('ucontext' vs 'struct ucontext_t')
    typedef ucontext ucontext_t;
                     ^
    /usr/include/x86_64-linux-gnu/sys/ucontext.h:150:5: note: previous definition is here
      } ucontext_t;
        ^
    1 error generated.
    In file included from system/core/libbacktrace/BacktraceCurrent.cpp:29:
    system/core/include/backtrace/Backtrace.h:52:18: error:
    typedef redefinition with different types ('ucontext' vs 'struct ucontext_t')
    typedef ucontext ucontext_t;
                     ^
    /usr/include/x86_64-linux-gnu/sys/ucontext.h:150:5:
    note: previous definition is here
      } ucontext_t;
        ^

So to workaround that, we disable the build of libbacktrace on the host
to avoid the conflicting headers.

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo at cyberdimension.org>
---
 libbacktrace/Android.mk | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/libbacktrace/Android.mk b/libbacktrace/Android.mk
index 6a689a61..97d50bcd 100644
--- a/libbacktrace/Android.mk
+++ b/libbacktrace/Android.mk
@@ -73,9 +73,6 @@ module_tag := optional
 build_type := target
 build_target := SHARED_LIBRARY
 include $(LOCAL_PATH)/Android.build.mk
-build_type := host
-libbacktrace_multilib := both
-include $(LOCAL_PATH)/Android.build.mk
 
 #-------------------------------------------------------------------------
 # The libbacktrace_test library needed by backtrace_test.
@@ -92,8 +89,6 @@ build_type := target
 build_target := SHARED_LIBRARY
 libbacktrace_test_multilib := both
 include $(LOCAL_PATH)/Android.build.mk
-build_type := host
-include $(LOCAL_PATH)/Android.build.mk
 
 #-------------------------------------------------------------------------
 # The backtrace_test executable.
@@ -133,8 +128,6 @@ build_type := target
 build_target := NATIVE_TEST
 backtrace_test_multilib := both
 include $(LOCAL_PATH)/Android.build.mk
-build_type := host
-include $(LOCAL_PATH)/Android.build.mk
 
 #----------------------------------------------------------------------------
 # Special truncated libbacktrace library for mac.
-- 
2.33.0