When I try to compile some prog with some lib, generally it's unknown whether it is static or dynamic library. Compile with dynamic libraries hasn't problems, but with static - it is. e.g. AC_TRY_LINK( [ #include <mysql.h> ], [ mysql_shutdown(0, 0); ], AC_DEFINE(HAVE_MYSQL_SHUTDOWN_LEVEL_ARG, 1, [ Define if mysql_shutdown() has a second 'level' argument ]) ) this generates "compile string" like: gcc -o conftest -march=pentium4 -O3 -I/usr/local/mysql-4.1.12/include/mysql -mcpu=athlon-xp -I/usr/local/include -L/usr/local/lib -L/usr/local/mysql-4.1.12/lib/mysql -lmysqlclient -lz -lcrypt -lnsl -lm -L/usr/lib -lssl -lcrypto conftest.c With shared mysql libs this will compile correctly, but with static - not. The simplest solution is to change "-o conftest" and "conftest.c" to take: gcc conftest.c -march=pentium4 -O3 -I/usr/local/mysql-4.1.12/include/mysql -mcpu=athlon-xp -I/usr/local/include -L/usr/local/lib -L/usr/local/mysql-4.1.12/lib/mysql -lmysqlclient -lz -lcrypt -lnsl -lm -L/usr/lib -lssl -lcrypto -o conftest This breakes not anything, but resolves the problem. Or, anybody knows another way to handle the subj. Plz, advise. _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf