https://code.google.com/p/mod-spdy/wiki/GettingStarted chrome://net-internals/#spdy https://svn.apache.org/viewvc/httpd/mod_spdy/trunk/

#See https://adrhc.go.ro/wordpress/common-commands-when-building/ for building environment, x.sh script and other things not defined here.
#Before starting do declare the environment variables specified to the link above.

#When depot_tools is already updated than run once:
cd /ffp/home/root/compile/depot_tools
~/x.sh ffpg

export PATH=$PATH:/ffp/home/root/compile/depot_tools/
export GIT_SSL_NO_VERIFY=true

cd ~/compile
rm -r ~/compile/mod_spdy
cd ~/compile && mkdir mod_spdy
cd ~/compile/mod_spdy
#gclient config "http://mod-spdy.googlecode.com/svn/tags/current/src"
gclient config "http://mod-spdy.googlecode.com/svn/trunk/src"
gclient sync --force

#ERROR1:
    KeyError: 'Undefined variable deb_arch in /usr/local/zy-pkgs/ffproot/ffp/home/root/compile/mod_spdy/src/build/install.gyp while loading dependencies
#SOLUTION1:
    modify /ffp/home/root/compile/mod_spdy/src/build/install.gyp:
        'conditions': [             -> existing line
          ['target_arch=="ia32"', { -> existing line
            'deb_arch': 'i386',     -> existing line
            'rpm_arch': 'i386',     -> existing line
          }],                       -> existing line
          ['target_arch=="arm"', {
            'deb_arch': 'ia32',
            'rpm_arch': 'ia32',
          }],

#ERROR2:
    third_party/chromium/src/base/debug/debugger_posix.cc:21:22: fatal error: execinfo.h: No such file or directory
     #include 
    compilation terminated.
    make: *** [out/Release/obj.target/base/third_party/chromium/src/base/debug/debugger_posix.o] Error 1
#SOLUTION2:
    Comment (# character too) any include of execinfo.h (stack_trace_posix.cc, debugger_posix.cc).
    sed -i s/"#include  commented line
    count_ = 0;                             -> added line
    Modify /ffp/home/root/compile/mod_spdy/src/third_party/chromium/src/base/debug/stack_trace_posix.cc (comment lines):
    //  if (in_signal_handler == 0) {
    //    scoped_ptr_malloc trace_symbols(backtrace_symbols(trace, size));
    //    if (trace_symbols.get()) {
    //      for (int i = 0; i < size; ++i) {
    //        std::string trace_symbol = trace_symbols.get()[i];
    //        DemangleSymbols(&trace_symbol);
    //        handler->HandleOutput(trace_symbol.c_str());
    //        handler->HandleOutput("\n");
    //      }
    //
    //      printed = true;
    //    }
    //  }

#ERROR4 (other similar errors occur and all have a similar solution):
    CC(target) out/Release/obj.target/dynamic_annotations/third_party/chromium/src/base/third_party/dynamic_annotations/dynamic_annotations.o
    third_party/chromium/src/base/third_party/dynamic_annotations/dynamic_annotations.c:35:20: fatal error: stdlib.h: No such file or directory
#SOLUTION4:
    grep -r dynamic_annotations.o .
    #result of grep:
    ./third_party/chromium/src/base/third_party/dynamic_annotations/dynamic_annotations.host.mk:146:
        $(obj).host/$(TARGET)/third_party/chromium/src/base/third_party/dynamic_annotations/dynamic_annotations.o
    ./third_party/chromium/src/base/third_party/dynamic_annotations/dynamic_annotations.target.mk:160:
        $(obj).target/$(TARGET)/third_party/chromium/src/base/third_party/dynamic_annotations/dynamic_annotations.o
    #modify dynamic_annotations. ... .mk
    INCS_Release := \
        ... \
        -I/ffp/include

#ERROR5:
    Something about not supporting sysroot.
#SOLUTION5:
    find . -type f -name *.mk -exec sed -i s/"\-\-sysroot=\/usr\/local\/zy-pkgs\/ffproot\/ffp\/home\/root\/compile\/mod_spdy\/src\/arm-sysroot"/""/g {} \;

#BULDING
export CFLAGS="$CFLAGS -Wno-error"
export CPPFLAGS="$CPPFLAGS -Wno-error"
export CXXFLAGS="$CXXFLAGS -Wno-error"
cd ~/compile/mod_spdy/src
#see http://adrhc.go.ro/public/mod_spdy-patch.sh
/i-data/md0/www/pages/public/mod_spdy-patch.sh
#./build_modssl_with_npn.sh --insecure -> instead of this do compile apache with npn patch applied
nohup make BUILDTYPE=Release &
renice -14 `pidof cc1plus` -p `pidof make` -p `pidof as`
tail -f nohup.out

#INSTALL & configure apache
cp -v out/Release/libmod_spdy.so /ffp/opt/apache-2.2.29-worker/modules/mod_spdy.so
#LoadModule spdy_module     /ffp/opt/apache-2.2.29-worker/modules/mod_spdy.so
#SpdyEnabled on
#Open another tab and navigate to chrome://net-internals/#spdy, and verify that your hostname appears in the table.