On Mon, Aug 13, 2018 at 09:31:23AM -0500, Hartmut Kaiser wrote:
>
> > On Mon, Aug 13, 2018 at 08:06:25AM -0500, Hartmut Kaiser wrote:
> > > FWIW, I have merged #3402 just now.
> >
> > Thanks!
> >
> > I have got as far as linking libhpx now - somehow there is a -ldl in
> > link.txt (and in the generated pkg-config .pc files). I have been hunting
> > through the cmake files where it comes from, but haven't found it. Any
> > ideas? (dlopen and friends are in many OS's system library as opposed to
> > libdl.)
>
> libdl is handled here:
> https://github.com/STEllAR-GROUP/hpx/blob/master/CMakeLists.txt#L1230-L1232
Thanks I searched for ldl and libdl... This gets me further:
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c780ea50ef..69e8261dce 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1227,9 +1227,15 @@ if(NOT WIN32)
endif()
endif()
- if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
- hpx_libraries(dl)
- endif()
+ # XXXPW if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
+ find_library(DL_LIBRARY NAMES dl)
+ if(DL_LIBRARY)
+ message(STATUS "dl library found")
+ hpx_libraries(dl)
+ else()
+ message(STATUS "dl library not found")
+ endif()
+ # XXXPW endif()
if(NOT APPLE AND NOT ("${HPX_PLATFORM_UC}" STREQUAL "ANDROID"))
hpx_libraries(rt)
but there are lots of ways of skinning that cat - have you a preferred
way of doing AC_CHECK_LIB([dl],[dlopen]) ?
(On linking I get:
CMakeFiles/hpx.dir/runtime/threads/executors/this_thread_executors.cpp.o: In
function `hpx::threads::coroutines::detail::context_base::~context_base()':
this_thread_executors.cpp:(.text._ZN3hpx7threads10coroutines6detail12context_baseD2Ev[_ZN3hpx7threads10coroutines6detail12context_baseD5Ev]+0x41):
undefined reference to
`hpx::threads::coroutines::detail::posix::use_guard_pages'
)
Cheers,
Patrick
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