Bug#788776: FTBFS: DSO missing from command line: XInitThreads

[Martin Pitt]

tag 788776 patch
user ubuntu-devel at lists.ubuntu.com
usertags 788776 origin-ubuntu ubuntu-patch wily
thanks

Chris West (Faux) [2015-06-14 21:34 +0000]:
> The package fails to build from source due to a missing linker argument (-lx11):
> 
> /usr/bin/ld: CMakeFiles/udav.dir/udav_wnd.cpp.o: undefined reference to symbol 'XInitThreads'
> //usr/lib/x86_64-linux-gnu/libX11.so.6: error adding symbols: DSO missing from command line
> collect2: error: ld returned 1 exit status
> udav/CMakeFiles/udav.dir/build.make:1395: recipe for target 'udav/udav' failed
> make[3]: *** [udav/udav] Error 1

debdiff attached. Debian maintainers, can you please forward this to
upstream? I'm quite sure that a hardcoded -lX11 isn't the best
solution here, but it works for the time being.

Thanks!

Martin
-- 
Martin Pitt                        | http://www.piware.de
Ubuntu Developer (www.ubuntu.com)  | Debian Developer  (www.debian.org)
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 * Add debian/patches/udav-link-X11.patch: udav/udav_wnd.cpp calls
   XInitThreads(), so we must link to -lX11. Fixes FTBFS.
   (Closes: #788776)
diff -Nru mathgl-2.2.2.1/debian/patches/series mathgl-2.2.2.1/debian/patches/series
--- mathgl-2.2.2.1/debian/patches/series	2014-03-24 00:06:43.000000000 +0100
+++ mathgl-2.2.2.1/debian/patches/series	2015-08-10 15:02:28.000000000 +0200
@@ -1 +1,2 @@
 CMakeLists.txt.patch
+udav-link-X11.patch
diff -Nru mathgl-2.2.2.1/debian/patches/udav-link-X11.patch mathgl-2.2.2.1/debian/patches/udav-link-X11.patch
--- mathgl-2.2.2.1/debian/patches/udav-link-X11.patch	1970-01-01 01:00:00.000000000 +0100
+++ mathgl-2.2.2.1/debian/patches/udav-link-X11.patch	2015-08-10 15:05:09.000000000 +0200
@@ -0,0 +1,17 @@
+Description: udav/udav_wnd.cpp calls XInitThreads(), so we must link to -lX11
+Author: Martin Pitt <martin.pitt at ubuntu.com>
+Bug-Debian: https://bugs.debian.org/788776
+
+Index: mathgl-2.2.2.1/udav/CMakeLists.txt
+===================================================================
+--- mathgl-2.2.2.1.orig/udav/CMakeLists.txt
++++ mathgl-2.2.2.1/udav/CMakeLists.txt
+@@ -49,6 +49,8 @@ if(MGL_HAVE_PTHREAD)
+ 	target_link_libraries(udav ${CMAKE_THREAD_LIBS_INIT})
+ endif(MGL_HAVE_PTHREAD)
+ 
++target_link_libraries(udav X11)
++
+ install(
+ 	TARGETS udav
+ 	RUNTIME DESTINATION bin
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