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pkg-config --libs foo -L/foo /usr/lib/libfoo.so -lbar /usr/lib/libfoo.so -lbar This looks correct to me. But I can't elicit a different behavior by setting it to NEW (that is, I'm still getting the split -L/-l args). For libs, rosbuild calls out three times, once for libs-only-L, once for libs-only-l, and once more for libs-only-other. The time now is 01:53 AM. navigate here

The library file is located somewhere other than /usr/lib/ (even sub-directories of /usr/lib). more hot questions question feed lang-c about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation You mean -l:/path/to/lib? (-l/path/to/lib has never worked). because I would really be surprised that pkg-config reorders stuff (this is against linking semantics).

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To get build flags, rosbuild calls out to rospack, which in turn calls out to pkg-config (via rosdep2 running inside an embedded Python interpreter, but for own sanity, let's pretend that Is it possible for a diesel engine computer to detect (and prevent) a runaway condition? ROS core stacks member dirk-thomas commented May 15, 2015 There are two cases to test / cover: No reordering: As mentioned above the example must use two libraries with inter-library dependencies.

  • more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed
  • The "-lrt" is for real-time library functions.
  • Problem with function inside brackets.
  • This limits the search to .a files only.
  • Ultimately this starts with the configure script to generate the Makefile as you mentioned.
  • instead of doing the "hack" I installed the "*-devel" version and it fixed the compilation. –Trevor Boyd Smith Apr 27 '12 at 19:21 2 How to symlink libmagic.so.1 to libmagic.so?
  • OBDII across the world?
  • Adv Reply August 19th, 2009 #9 dwhitney67 View Profile View Forum Posts Private Message Tolerant of Ubuntu Join Date Jun 2007 Location Maryland, US Beans 6,272 DistroKubuntu Re: ld cannot
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In other words, for a package foo providing libfoo, Libs: is usually just "-L${prefix}/lib -lfoo", no matter what shared libraries libfoo.so was linked with. How does Gandalf end up on the roof of Isengard? Another option is to add an explicit -L/ in front of the -l: items. Cannot Find Lcudart What system are you experiencing this?

C# TBB updating metadata value QGIS Print composer scale problems In the context of this quote, how many 'chips/sockets' do personal computers contain? Cannot Find Linux Is adding the ‘tbl’ prefix to table names really a problem? gerkey commented May 13, 2015 @tho- I appreciate that using something other than -L/-l flags in Libs: is unusual, but I can't find anything in the documentation that advises against it. If you look at the man page of this command, you can either do: g++ -l:libmagic.so.1 [...] or: g++ -lmagic [...] , if you have a symlink named libmagic.so in your

If that effects Utopic it will be "problematic" to build any dry packages which depend on pkg-config. Cannot Find Lippicv more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Bug? Problem with function inside brackets.

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For details and our forum data attribution, retention and privacy policy, see here Online Reference&Tools Home>Code>Linux>GCC> gcc -L / -l gcc -L / -l option flags gcc -l links with Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the Cannot Find Ubuntu Browse other questions tagged c++ linux g++ or ask your own question. Gcc Cannot Find And as per https://sourceware.org/bugzilla/show_bug.cgi?id=17532#c3, the use of full path in the argument is an undocumented ld feature, in actual fact a ld bug, that has since been fixed.

DistroUbuntu ld cannot find -l(library) Hi guys, I'm building a somple program that uses third-party libraries, .a and .so. check over here ROS core stacks member dirk-thomas commented Nov 13, 2014 Using -l:/path/to/lib is necessary to prevent pkg-config from reordering libraries. ldconfig -v To verify you can run: $ ldconfig -p | grep libmagic share|improve this answer edited May 17 at 21:57 Richard Erickson 1,98361125 answered May 17 at 20:51 Miguel Ignacio Problem with function inside brackets. Ld: Warning: Cannot Find Entry Symbol _start; Not Setting Start Address

asked 1 year ago viewed 4942 times active 1 year ago Related 2Cannot find libgmp when compiling GCC 4.5.212gcc can't link to pthread?3Compiling a C program that defines a function getline I get the same exect error except now is says: "/usr/bin/ld: cannot find -llibMOOS" with the .a removed. Given the hints solve the puzzle When does TNG take place in relation to DS9? his comment is here gerkey commented May 15, 2015 No, we don't have a test for that yet.

Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the Cannot Find Lgcc_s Not the answer you're looking for? Two-way high power outdoor Wi-Fi In the context of this quote, how many 'chips/sockets' do personal computers contain?

The latter is split into separate linker args, -L/foo and -lbar, which defeats the purpose of providing the absolute path in the first place.

Not the answer you're looking for? Was it legal to rant against trick or treating via loudspeaker during halloween? As a monk, can I use Deflect Missiles to protect my ally? Usr Bin Ld Cannot Find Collect2 Ld Returned 1 Exit Status In those cases, you could create a link from them and name them exactly: lib{name of library}.so and place it in /usr/lib/.

export LD_LIBRARY_PATH = /pathofdirectorywheresofilesarekept share|improve this answer answered Jun 23 '15 at 3:39 vineet pant 54 add a comment| Your Answer draft saved draft discarded Sign up or log in ROS core stacks member dirk-thomas commented Apr 3, 2015 I think we first should reproduce the original problem (the reordering) which was the reason why this was changed in the first Libs: is just meant to provide information on how to link with a library. weblink ROS core stacks member wjwwood commented May 13, 2015 @gerkey That sounds reasonable, and I trust your diagnosis of the issue, but do we have a test case yet that will

Unfortunately I don't remember the exact scenario where this caused us a problem before, so finding an existing package with this issue may not be the easiest way to reproduce the So, I would personnaly say that the reordering issue is ... Find the "unwrapped size" of a list Build me a brick wall! You need to put them in an order that has all the symbol dependencies of the earlier libraries resolved by symbols provided by later libraries.

We had someone with a similar error just a little while ago... –Faheem Mitha Feb 9 '14 at 16:15 Angstrom users are advised not to manually install gcc, libgcc OBDII across the world? Ex: g++ program.cpp `Magick++-config --cppflags --cxxflags --ldflags --libs` -o "prog" share|improve this answer edited Nov 8 '12 at 21:11 Yamaneko 1,83721741 answered Dec 3 '08 at 1:08 Brian Gianforcaro 15.9k94474 add Unix & Linux Stack Exchange works best with JavaScript enabled current community chat Unix & Linux Unix & Linux Meta your communities Sign up or log in to customize your list.

Departing from airport before visa is valid, but arriving when it is Two-way high power outdoor Wi-Fi Polyglot Anagrams Cops' Thread Isn't AES-NI useless because now the key length need to If you want to use a library located in a non-standard directory, you have to use the -L parameter of the command, like this : ld -lcuda -L/usr/local/cuda/lib64 If you have you can't fix everything). Not the answer you're looking for?

mikey0000 commented May 15, 2015 +1 currently broken on 15.04 ubuntu gerkey added a commit to ros/ros that referenced this issue Jul 14, 2015 gerkey