Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Here is the error message from installing nginx with passenger-install- nginx-module (rvmsudo). The nginx is 1.0.6 installed under /opt/nginx (default). gem install passenger successfully prior.

/usr/bin/ld: /home/dtt/.rvm/gems/ruby-1.9.2-p290/gems/passenger-3.0.9/
ext/nginx/../common/libpassenger_common.a(aggregate.o): undefined
reference to symbol 'round@@GLIBC_2.2.5'
/usr/bin/ld: note: 'round@@GLIBC_2.2.5' is defined in DSO /usr/lib/gcc/
x86_64-linux-gnu/4.6.1/../../../x86_64-linux-gnu/ so try adding
it to the linker command line
could not read symbols: Invalid operation
collect2: ld returned 1 exit status
make[1]: *** [objs/nginx] Error 1
make[1]: Leaving directory `/tmp/root-passenger-2135/nginx-1.0.6'
make: *** [build] Error 2

It looks like something went wrong
share|improve this question
up vote 1 down vote accepted


 hey! I solve this issue moving block:

 ngx_feature="Math library" ngx_feature_name= ngx_feature_run=no
 ngx_feature_incs="#include <math.h>" ngx_feature_path=
 ngx_feature_libs="-lm" ngx_feature_test="pow(1, 2)"  . auto/feature if
 [ $ngx_found = yes ]; then
     CORE_LIBS="$CORE_LIBS -lm" fi

 to after:

 ngx_addon_name=ngx_http_passenger_module HTTP_MODULES="$HTTP_MODULES
 ngx_http_passenger_module" NGX_ADDON_SRCS="$NGX_ADDON_SRCS \
     ${ngx_addon_dir}/ngx_http_passenger_module.c \
     ${ngx_addon_dir}/Configuration.c \
     ${ngx_addon_dir}/ContentHandler.c \
     ${ngx_addon_dir}/StaticContentHandler.c" NGX_ADDON_DEPS="$NGX_ADDON_DEPS \   
     ${ngx_addon_dir}/Configuration.h \
     ${ngx_addon_dir}/ContentHandler.h \
     ${ngx_addon_dir}/StaticContentHandler.h \
     ${ngx_addon_dir}/ngx_http_passenger_module.h \
     ${ngx_addon_dir}/../common/Constants.h" CORE_LIBS="$CORE_LIBS  \
     ${ngx_addon_dir}/../common/libpassenger_common.a \
     ${ngx_addon_dir}/../common/libboost_oxt.a \
     -lstdc++ -lpthread"

 in ext/nginx/config
share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.