fast_stack not compiling

[andywenk]

Hi,

first of all thanks for this gem. I tried to include it together with mini-profiler. This is a

• MAC OS X 10.11
• Rails 4.2.4
• Ruby 2.2.3
• bundler 1.10.6
• rubygems 2.4.5.1

setup. I get the following error when trying to run bundle and also when trying to install fast_stack standalone via gem install flamegraph:

Building native extensions.  This could take a while...
ERROR:  Error installing fast_stack:
    ERROR: Failed to build gem native extension.

    /Users/andwen/.rbenv/versions/2.2.3/bin/ruby -r ./siteconf20151009-33231-16ysef.rb extconf.rb
creating Makefile

make "DESTDIR=" clean

make "DESTDIR="
compiling fast_stack.c
linking shared-object fast_stack/fast_stack.bundle
ld: library not found for -lgmp
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [fast_stack.bundle] Error 1

make failed, exit code 2

Is this a compiler issue? I have Apple LLVM version 7.0.0 (clang-700.0.72) installed (gcc -v)

Thanks for any help.

Cheers

Andy

[SamSaffron]

we need to clarify in the docs but in 2.1 and above you should use
stackprof

https://github.com/SamSaffron/flamegraph/blob/master/lib/flamegraph.rb#L5

can you update the readme so others do not get stuck?

On Fri, Oct 9, 2015 at 8:24 PM, Andreas Wenk notifications@github.com
wrote:

Hi,

first of all thanks for this gem. I tried to include it together with
mini-profiler. This is a

• MAC OS X 10.11
• Rails 4.2.4
• Ruby 2.2.3
• bundler 1.10.6
• rubygems 2.4.5.1

setup. I get the following error when trying to run bundle and also when
trying to install fast_stack standalone via gem install flamegraph:

Building native extensions. This could take a while...
ERROR: Error installing fast_stack:
ERROR: Failed to build gem native extension.

/Users/andwen/.rbenv/versions/2.2.3/bin/ruby -r ./siteconf20151009-33231-16ysef.rb extconf.rb

creating Makefile

make "DESTDIR=" clean

make "DESTDIR="
compiling fast_stack.c
linking shared-object fast_stack/fast_stack.bundle
ld: library not found for -lgmp
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [fast_stack.bundle] Error 1

make failed, exit code 2

Is this a compiler issue? I have Apple LLVM version 7.0.0 (clang-700.0.72)
installed (gcc -v)

Thanks for any help.

Cheers

Andy

—
Reply to this email directly or view it on GitHub
#15.

[edbond]

Note added to readme, can be closed now I think.