While building the source code for ldap I followed these steps and got error as shown: 1.Untar mozldap-6.0.2.tar.gz 2.Untar nss-3.11.4-with-nspr-4.6.4.tar.gz 3.Move directory 'directory' from mozldap-6.0.2/mozilla/directory to nss-3.11.4/mozilla/ 4.Go to folder nss-3.11.4/mozilla/security/nss 5.make clean 6.export BUILD_OPT=1 7.make nss_build_all USE_64=1 NS_USE_GCC=1 ERROR: gcc -m64 -o os_SunOS_sparcv9.o -pipe -Wall -pthreads -O -fPIC -UDEBUG -DNDEBUG=1 -DXP_UNIX=1 -DSVR4=1 -DSYSV=1 -D__svr4=1 -D__svr4__=1 -DSOLARIS=1 -DHAVE_FCNTL_FILE_LOCKING=1 -D_PR_HAVE_OFF64_T=1 -D_LARGEFILE64_SOURCE=1 -D_PR_INET6=1 -DHAVE_LCHOWN=1 -DHAVE_STRERROR=1 -D_REENTRANT=1 -DHAVE_POINTER_LOCALTIME_R=1 -DFORCE_PR_LOG -D_PR_PTHREADS -UHAVE_CVAR_BUILT_ON_SEM -D_NSPR_BUILD_ -I/export/home/build/Third_Party/nss-3.11.4/mozilla/security/nss/../../dist/SunOS5.10_gcc_64_OPT.OBJ/include -I../../../../../pr/include -I../../../../../pr/include/private -c ../../../../../pr/src/md/unix/os_SunOS_sparcv9.s ../../../../../pr/src/md/unix/os_SunOS_sparcv9.s: Assembler messages: ../../../../../pr/src/md/unix/os_SunOS_sparcv9.s:69: Fatal error: Unknown opcode: `entry(_MD_AtomicIncrement)' make[5]: *** [os_SunOS_sparcv9.o] Error 1 make[5]: Leaving directory `/export/home/build/Third_Party/nss-3.11.4/mozilla/nsprpub/SunOS5.10_gcc_64_OPT.OBJ/pr/src/md/unix' make[4]: *** [export] Error 2 make[4]: Leaving directory `/export/home/build/Third_Party/nss-3.11.4/mozilla/nsprpub/SunOS5.10_gcc_64_OPT.OBJ/pr/src/md' make[3]: *** [export] Error 2 make[3]: Leaving directory `/export/home/build/Third_Party/nss-3.11.4/mozilla/nsprpub/SunOS5.10_gcc_64_OPT.OBJ/pr/src' make[2]: *** [export] Error 2 make[2]: Leaving directory `/export/home/build/Third_Party/nss-3.11.4/mozilla/nsprpub/SunOS5.10_gcc_64_OPT.OBJ/pr' make[1]: *** [export] Error 2 make[1]: Leaving directory `/export/home/build/Third_Party/nss-3.11.4/mozilla/nsprpub/SunOS5.10_gcc_64_OPT.OBJ' make: *** [build_nspr] Error 2

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