I tried to build the nsapi_redirect.so on Linux 64. And after running ./configure and setting the IPLANET_HOME to .opt/oracle/webserver7. And running make -f Makefile.linux, started getting error in jk_nsapi_plugin.c. The error is could not find nsapi.h.
After checking the include folder, i did not find the nsapi.h in webserver. Can someone confirm/give details about how to fix these issues.