Hi, ALL, [code] CC -m64 -std=c++11 -o dist/Debug/OracleDeveloperStudio-Solaris-x86/liblibpostgres.so build/Debug/OracleDeveloperStudio-Solaris-x86/database_postgres.o -L../postgresql/src/interfaces/libpq -lpq -m64 -std=c++11 -G -KPIC -norunpath -h liblibpostgres.so ld: fatal: file ../postgresql/src/interfaces/libpq/libpq.so: wrong ELF class: ELFCLASS32 *** Error code 2 [/code] However testing the library reveals: [code] igor@solaris:~/dbhandlerSol/libpq/src/interfaces/libpq$ file libpq.so libpq.so: ELF 64-bit LSB dynamic lib AMD64 Version 1 [SSE2 SSE], dynamically linked, not stripped [/code] What is wrong here? I did do the clean the default 32-bit build and then rebuild with: [code] CFLAGS="-m64" LDFLAGS="-m64" ./configure && cd src/interface/libpq && gmake [/code] What am I missing? Thank you.