checking for jsapi.h... yes checking for JS_SuspendRequest in -ljs... no checking for JS_SuspendRequest in -lsmjs... no checking for JS_SuspendRequest in -lmozjs... no configure: WARNING: I did not find a working copy of jsapi.h and the associated library. configure: WARNING: <1>- Not reachable : Make sure you have spidermonkey installed configure: WARNING: Then use --with-jsapi-include=/path/to/jsapi.h/ configure: WARNING: <2>- Make sure the library is in your LD_LIBRARY_PATH and/or LDFLAGS configure: WARNING: <3>- Make sure multithreading is enabled in your spidermonkey configure: WARNING: The ones from mozilla-dev or firefox-dev are ok configure: error: *** Working SPIDERMONKEY javascript engine not found !*** make: *** No targets specified and no makefile found. Stop.