elementary-dev-community team mailing list archive

[Devid Antonio Filoni <devidfil@xxxxxxxxx>]

I found this:
https://github.com/queezythegreat/arduino-cmake/issues/2

Cheers,
Devid

On Wed, Sep 12, 2012 at 11:59 PM, David Gomes <david@xxxxxxxxxxxxxxxx> wrote:
> On the terminal we now need Math.floor and Math.ceil for zooming in and out
> using Ctrl-+ and Ctrl--.
>
> This brought along an issue when building the termina:
>
> /usr/bin/ld: CMakeFiles/pantheon-terminal.dir/src/TerminalWidget.c.o:
> undefined reference to symbol 'floor@@GLIBC_2.2.5'
> /usr/bin/ld: note: 'floor@@GLIBC_2.2.5' is defined in DSO /usr/lib/libm.so.6
> so try adding it to the linker command line
> /usr/lib/libm.so.6: could not read symbols: Invalid operation
> collect2: error: ld returned 1 exit status
> make[2]: *** [pantheon-terminal] Error 1
>
> In order to fix this, Ricotz suggested using the "-lm" flag on the linker. I
> tried to do it and then it worked just fine. However, for Victored and Eshat
> on Ubuntu (Luna), that made it stop working.
>
> It seems that on Ubuntu the linker includes lm by default, and on Arch it
> doesn't, and reincluding it causes troubles on Ubuntu.
>
> On CMakeLists.txt I just added the following to make it compile:
>
> set (CMAKE_EXE_LINKER_FLAGS "-lm")
>
> Either way, I want Pantheon Terminal to compile across all GNU/Linux
> distributions, so I need a way to solve this.
>
> === modified file 'CMakeLists.txt'
> --- CMakeLists.txt 2012-07-26 20:23:31 +0000
> +++ CMakeLists.txt 2012-09-12 19:18:34 +0000
> @@ -30,6 +30,7 @@
>  find_package(PkgConfig)
>  pkg_check_modules(DEPS REQUIRED gthread-2.0 gtk+-3.0 granite vte-2.90
> libnotify gdk-3.0)
>
> +set (DEPS_LADD "${DEPS_LADD} -lm")
>  add_definitions(${DEPS_CFLAGS})
>
>  link_libraries(${DEPS_LIBRARIES})
>
> Ricotz suggesting the avobe path to fix the issue. I applied that patch and
> my patched CMakeLists.txt is attached. However, with this patch I can't
> build it on Arch, but Victored managed to built it on Ubuntu. I get the same
> good old error:
>
> /usr/bin/ld: CMakeFiles/pantheon-terminal.dir/src/TerminalWidget.c.o:
> undefined reference to symbol 'floor@@GLIBC_2.2.5'
> /usr/bin/ld: note: 'floor@@GLIBC_2.2.5' is defined in DSO /usr/lib/libm.so.6
> so try adding it to the linker command line
> /usr/lib/libm.so.6: could not read symbols: Invalid operation
> collect2: error: ld returned 1 exit status
>
> So I'd appreciate some help guys, since I'm fairly new to CMake. Oh, and
> this is the branch we're working on:
>
> https://code.launchpad.net/~elementary-dev-community/pantheon-terminal/zoom-in-out
>
> Thank you.
>
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