boost: fix static detection of lock-free atomic ints

When build statically, boost is unable to detect lock-free atomics ints
because it tries to link dynamically, see
output/build/boost-1.67.0/bin.v2/config.log (with -d5 option):

Using shell: /bin/sh -c
    argv[0] = '/bin/sh'
    argv[1] = '-c'
    argv[2] = '
    "/home/fabrice/buildroot/output/host/bin/arm-linux-g++"   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -Wl,-elf2flt -static  -Wl,-elf2flt -static -fPIC -pthread -O0 -fno-inline -Wall -pedantic -g -Wextra -Wno-long-long -Wno-unused-parameter -Wunused-function -pedantic -DBOOST_ALL_NO_LIB=1 -DBOOST_SYSTEM_DYN_LINK=1 -DBOOST_THREAD_BUILD_DLL=1  -I"." -c -o "bin.v2/libs/thread/build/gcc-6.4.0/debug/threading-multi/has_atomic_flag_lockfree_test.o" "libs/thread/src/../build/has_atomic_flag_lockfree_test.cpp"
'
gcc.compile.c++ bin.v2/libs/thread/build/gcc-6.4.0/debug/threading-multi/has_atomic_flag_lockfree_test.o

    "/home/fabrice/buildroot/output/host/bin/arm-linux-g++"   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -Wl,-elf2flt -static  -Wl,-elf2flt -static -fPIC -pthread -O0 -fno-inline -Wall -pedantic -g -Wextra -Wno-long-long -Wno-unused-parameter -Wunused-function -pedantic -DBOOST_ALL_NO_LIB=1 -DBOOST_SYSTEM_DYN_LINK=1 -DBOOST_THREAD_BUILD_DLL=1  -I"." -c -o "bin.v2/libs/thread/build/gcc-6.4.0/debug/threading-multi/has_atomic_flag_lockfree_test.o" "libs/thread/src/../build/has_atomic_flag_lockfree_test.cpp"

0.033561 sec system; 0.126314 sec user; 288.682473 sec clock
gcc.compile.c++ bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/error_code.o

    "/home/fabrice/buildroot/output/host/bin/arm-linux-g++"   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -Wl,-elf2flt -static  -Wl,-elf2flt -static -fPIC -pthread -O0 -fno-inline -Wall -pedantic -g  -DBOOST_ALL_NO_LIB=1 -DBOOST_SYSTEM_DYN_LINK=1  -I"." -c -o "bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/error_code.o" "libs/system/src/error_code.cpp"

0.084060 sec system; 0.644133 sec user; 8.858824 sec clock
SEM: <s>gcc-link-semaphore now used by <pbin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi>libboost_system.so.1.67.0
Using shell: /bin/sh -c
    argv[0] = '/bin/sh'
    argv[1] = '-c'
    argv[2] = '
    "/home/fabrice/buildroot/output/host/bin/arm-linux-g++"    -o "bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/libboost_system.so.1.67.0" -Wl,-h -Wl,libboost_system.so.1.67.0 -shared -Wl,--start-group "bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/error_code.o"  -Wl,-Bstatic  -Wl,-Bdynamic -lrt -Wl,--end-group -fPIC -pthread -g  -Wl,-elf2flt -static
'
gcc.link.dll bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/libboost_system.so.1.67.0

    "/home/fabrice/buildroot/output/host/bin/arm-linux-g++"    -o "bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/libboost_system.so.1.67.0" -Wl,-h -Wl,libboost_system.so.1.67.0 -shared -Wl,--start-group "bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/error_code.o"  -Wl,-Bstatic  -Wl,-Bdynamic -lrt -Wl,--end-group -fPIC -pthread -g  -Wl,-elf2flt -static

ld (ld-elf2flt): -shared used without passing a shared library ID
collect2: error: ld a retourné le statut de sortie 1
0.003123 sec system; 0.004732 sec user; 15.646509 sec clock
...failed gcc.link.dll bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/libboost_system.so.1.67.0...

Due to this wrong detection, boost_atomic is wrongly selected by
boost_thread which cause a build failure on missing select

To fix this, move the exe statement before the boost/thread project

Fixes:
 - http://autobuild.buildroot.org/results/f46d38991385cbc2a4fa14eb31074e770cd79803

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/package/boost/0005-fix-static-detection-of-lock-free-atomic-ints.patch b/package/boost/0005-fix-static-detection-of-lock-free-atomic-ints.patch
new file mode 100644
index 0000000000..580a298056
--- /dev/null
+++ b/package/boost/0005-fix-static-detection-of-lock-free-atomic-ints.patch
@@ -0,0 +1,80 @@
+From 48be99d20753ecab8817b030b95a7f1260aa777f Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Wed, 5 Sep 2018 12:04:15 +0200
+Subject: [PATCH 17/17] fix static detection of lock-free atomic ints
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+When build statically, boost is unable to detect lock-free atomics ints
+because it tries to link dynamically with boost_system, see
+output/build/boost-1.67.0/bin.v2/config.log (with -d5 option):
+
+Using shell: /bin/sh -c
+    argv[0] = '/bin/sh'
+    argv[1] = '-c'
+    argv[2] = '
+    "/home/fabrice/buildroot/output/host/bin/arm-linux-g++"   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -Wl,-elf2flt -static  -Wl,-elf2flt -static -fPIC -pthread -O0 -fno-inline -Wall -pedantic -g -Wextra -Wno-long-long -Wno-unused-parameter -Wunused-function -pedantic -DBOOST_ALL_NO_LIB=1 -DBOOST_SYSTEM_DYN_LINK=1 -DBOOST_THREAD_BUILD_DLL=1  -I"." -c -o "bin.v2/libs/thread/build/gcc-6.4.0/debug/threading-multi/has_atomic_flag_lockfree_test.o" "libs/thread/src/../build/has_atomic_flag_lockfree_test.cpp"
+'
+gcc.compile.c++ bin.v2/libs/thread/build/gcc-6.4.0/debug/threading-multi/has_atomic_flag_lockfree_test.o
+
+    "/home/fabrice/buildroot/output/host/bin/arm-linux-g++"   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -Wl,-elf2flt -static  -Wl,-elf2flt -static -fPIC -pthread -O0 -fno-inline -Wall -pedantic -g -Wextra -Wno-long-long -Wno-unused-parameter -Wunused-function -pedantic -DBOOST_ALL_NO_LIB=1 -DBOOST_SYSTEM_DYN_LINK=1 -DBOOST_THREAD_BUILD_DLL=1  -I"." -c -o "bin.v2/libs/thread/build/gcc-6.4.0/debug/threading-multi/has_atomic_flag_lockfree_test.o" "libs/thread/src/../build/has_atomic_flag_lockfree_test.cpp"
+
+0.033561 sec system; 0.126314 sec user; 288.682473 sec clock
+gcc.compile.c++ bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/error_code.o
+
+    "/home/fabrice/buildroot/output/host/bin/arm-linux-g++"   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -Wl,-elf2flt -static  -Wl,-elf2flt -static -fPIC -pthread -O0 -fno-inline -Wall -pedantic -g  -DBOOST_ALL_NO_LIB=1 -DBOOST_SYSTEM_DYN_LINK=1  -I"." -c -o "bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/error_code.o" "libs/system/src/error_code.cpp"
+
+0.084060 sec system; 0.644133 sec user; 8.858824 sec clock
+SEM: <s>gcc-link-semaphore now used by <pbin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi>libboost_system.so.1.67.0
+Using shell: /bin/sh -c
+    argv[0] = '/bin/sh'
+    argv[1] = '-c'
+    argv[2] = '
+    "/home/fabrice/buildroot/output/host/bin/arm-linux-g++"    -o "bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/libboost_system.so.1.67.0" -Wl,-h -Wl,libboost_system.so.1.67.0 -shared -Wl,--start-group "bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/error_code.o"  -Wl,-Bstatic  -Wl,-Bdynamic -lrt -Wl,--end-group -fPIC -pthread -g  -Wl,-elf2flt -static
+'
+gcc.link.dll bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/libboost_system.so.1.67.0
+
+    "/home/fabrice/buildroot/output/host/bin/arm-linux-g++"    -o "bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/libboost_system.so.1.67.0" -Wl,-h -Wl,libboost_system.so.1.67.0 -shared -Wl,--start-group "bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/error_code.o"  -Wl,-Bstatic  -Wl,-Bdynamic -lrt -Wl,--end-group -fPIC -pthread -g  -Wl,-elf2flt -static
+
+ld (ld-elf2flt): -shared used without passing a shared library ID
+collect2: error: ld a retourné le statut de sortie 1
+0.003123 sec system; 0.004732 sec user; 15.646509 sec clock
+...failed gcc.link.dll bin.v2/libs/system/build/gcc-6.4.0/debug/threading-multi/libboost_system.so.1.67.0...
+
+To fix this, move the exe statement before the boost/thread project
+
+Fixes:
+ - http://autobuild.buildroot.org/results/f46d38991385cbc2a4fa14eb31074e770cd79803
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+[Upstream status: https://github.com/boostorg/thread/pull/231]
+---
+ build/Jamfile.v2 | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/libs/thread/build/Jamfile.v2 b/build/Jamfile.v2
+index ce8c7f47..26d8b9c3 100644
+--- a/libs/thread/build/Jamfile.v2
++++ b/libs/thread/build/Jamfile.v2
+@@ -38,6 +38,8 @@ import path ;
+ import configure ; 
+ import threadapi-feature ;
+ 
++exe has_atomic_flag_lockfree : ../build/has_atomic_flag_lockfree_test.cpp ;
++
+ project boost/thread
+     : source-location ../src
+     : requirements <threading>multi
+@@ -141,8 +143,6 @@ project boost/thread
+       <library>/boost/system//boost_system
+     ;
+ 
+-exe has_atomic_flag_lockfree : ../build/has_atomic_flag_lockfree_test.cpp ; 
+-
+ rule tag ( name : type ? : property-set )
+ {
+     local result = $(name) ;
+-- 
+2.17.1
+