we are sually working with autoconf 2.63, but I just have to work on a system with 2.64 installed and run into the warning: configure.in:40: warning: AC_REQUIRE: `AC_PROG_CC' was expanded before it was required /usr/src/packages/autoconf/26/autoconf2.5-2.64-1/src/autoconf-2.64/lib/autoconf/c.m4:433: AC_LANG_COMPILER(C) is expanded from... /usr/src/packages/autoconf/26/autoconf2.5-2.64-1/src/autoconf-2.64/lib/autoconf/lang.m4:315: AC_LANG_COMPILER_REQUIRE is expanded from... /usr/src/packages/autoconf/26/autoconf2.5-2.64-1/src/autoconf-2.64/lib/autoconf/general.m4:2665: AC_LINK_IFELSE is expanded from... /usr/src/packages/autoconf/26/autoconf2.5-2.64-1/src/autoconf-2.64/lib/autoconf/general.m4:2674: AC_TRY_LINK is expanded from... /usr/src/packages/autoconf/26/autoconf2.5-2.64-1/src/autoconf-2.64/lib/m4sugar/m4sh.m4:620: AS_IF is expanded from... /usr/src/packages/autoconf/26/autoconf2.5-2.64-1/src/autoconf-2.64/lib/autoconf/general.m4:2018: AC_CACHE_VAL is expanded from... /usr/src/packages/autoconf/26/autoconf2.5-2.64-1/src/autoconf-2.64/lib/autoconf/general.m4:2039: AC_CACHE_CHECK is expanded from... ../ingeconf/icgeneral.m4:2064: IC_CHECK_THREADSAFE is expanded from... ../ingeconf/icgeneral.m4:144: IC_CONFIG_C_ is expanded from... ../ingeconf/icgeneral.m4:116: IC_CONFIG_C is expanded from... configure.in:40: the top level Can anybody give any advice about what is wrong? Thanks, Carsten Heinrici _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf