Compiling sassc about sassc

[borisBezb]

Have the same problem.

[mgreter]

IMO this error occurs when you try to compile with gcc 4.4, which is not officially supported by libsass!
It seems to be possible to compile libsass with gcc 4.4, but we do not officially support it!

Please re-open if you can reproduce it with a recent compiler!

[chrisnicola]

Currently having a similar issue with GCC 4.5.4 on EngineYard's stack.

gem install sassc -v '1.7.1'
Fetching: sassc-1.7.1.gem (100%)
Building native extensions.  This could take a while...
ERROR:  Error installing sassc:
        ERROR: Failed to build gem native extension.

    /usr/bin/ruby22 -rubygems /usr/lib64/ruby/gems/2.2.0/gems/rake-0.9.6/bin/rake RUBYARCHDIR=/home/deploy/.gem/ruby/2.2.0/extensions/x86_64-linux/2.2.0/sassc-1.7.1 RUBYLIBDIR=/home/deploy/.gem/ruby/2.2.0/extensions/x86_64-linux/2.2.0/sassc-1.7.1
cd libsass
make lib/libsass.so LDFLAGS="-Wall -O2"
mkdir lib
cc -Wall -O2 -fPIC -c -o cencode.o cencode.c
g++ -Wall -O2 -std=c++0x -fPIC -c -o ast.o ast.cpp
In file included from ast.cpp:1:0:
ast.hpp: In member function ‘Sass::Hashed& Sass::Hashed::operator+=(Sass::Hashed*)’:
ast.hpp:238:21: error: expected initializer before ‘:’ token
ast.hpp:242:27: error: could not convert ‘Sass::Hashed::reset_duplicate_key()’ to ‘bool’
ast.hpp:243:7: error: expected primary-expression before ‘return’
ast.hpp:243:7: error: expected ‘)’ before ‘return’
ast.hpp: In member function ‘virtual bool Sass::Map::operator==(Sass::Expression&) const’:
ast.hpp:807:23: error: expected initializer before ‘:’ token
ast.hpp:809:9: error: expected primary-expression before ‘return’
ast.hpp:809:9: error: expected ‘;’ before ‘return’
ast.hpp:809:9: error: expected primary-expression before ‘return’
ast.hpp:809:9: error: expected ‘)’ before ‘return’
ast.hpp: In member function ‘virtual size_t Sass::Map::hash()’:
ast.hpp:822:21: error: expected initializer before ‘:’ token
ast.hpp:825:7: error: expected primary-expression before ‘return’
ast.hpp:825:7: error: expected ‘;’ before ‘return’
ast.hpp:825:7: error: expected primary-expression before ‘return’
ast.hpp:825:7: error: expected ‘)’ before ‘return’
ast.hpp: In member function ‘virtual size_t Sass::Function_Call::hash()’:
ast.hpp:1087:26: error: expected initializer before ‘:’ token
ast.hpp:1090:7: error: expected primary-expression before ‘return’
ast.hpp:1090:7: error: expected ‘;’ before ‘return’
ast.hpp:1090:7: error: expected primary-expression before ‘return’
ast.hpp:1090:7: error: expected ‘)’ before ‘return’
In file included from ast.cpp:1:0:
ast.hpp: In member function ‘virtual size_t Sass::String_Schema::hash()’:
ast.hpp:1349:24: error: expected initializer before ‘:’ token
ast.hpp:1352:7: error: expected primary-expression before ‘return’
ast.hpp:1352:7: error: expected ‘;’ before ‘return’
ast.hpp:1352:7: error: expected primary-expression before ‘return’
ast.hpp:1352:7: error: expected ‘)’ before ‘return’
ast.cpp: In member function ‘void Sass::Number::normalize(const std::string&)’:
ast.cpp:757:19: error: expected initializer before ‘:’ token
ast.cpp:944:1: error: expected primary-expression at end of input
ast.cpp:944:1: error: expected ‘;’ at end of input
ast.cpp:944:1: error: expected primary-expression at end of input
ast.cpp:944:1: error: expected ‘)’ at end of input
ast.cpp:944:1: error: expected statement at end of input
ast.cpp:944:1: error: expected ‘}’ at end of input
ast.cpp: At global scope:
ast.cpp:944:1: error: expected ‘}’ at end of input
units.hpp:11:16: warning: ‘Sass::PI’ defined but not used
make: *** [ast.o] Error 1
rake aborted!
Command failed with status (2): [make lib/libsass.so LDFLAGS="-Wall -O2"...]
/data/homedirs/deploy/.gem/ruby/2.2.0/gems/sassc-1.7.1/lib/tasks/libsass.rb:20:in `block (2 levels) in <top (required)>'
/data/homedirs/deploy/.gem/ruby/2.2.0/gems/sassc-1.7.1/lib/tasks/libsass.rb:11:in `block (3 levels) in <top (required)>'
/data/homedirs/deploy/.gem/ruby/2.2.0/gems/sassc-1.7.1/lib/tasks/libsass.rb:10:in `block (2 levels) in <top (required)>'
Tasks: TOP => lib/libsass.so
(See full trace by running task with --trace)

rake failed, exit code 1

[saper]

sassc is a command-line interface to libsass and GCC 4.6+ is required to compile it. libsass uses few C++11 features that are not available in the older compilers.

[chrisnicola]

Good to know, I was trying to build on EngineYard which is unfortunately still stuck at GCC 4.5. Are there any docs that specify requirements for compiling? That would help.

[saper]

The libsass README I have linked to in the comment above ^^