Does config/lyxinclude.m4 still need to use LYX_PROG_CXX instead of AC_* (other than that LYX_* deals with --enable-warnings and others)?
The reason being that this macro doesn't work anymore with automake 1.5, which uses a new dependency tracking implementation (which needs an AC_SUBST done by AC_PROG_CXX). Quick fix: Index: config/lyxinclude.m4 =================================================================== RCS file: /cvs/lyx/lyx-devel/config/lyxinclude.m4,v retrieving revision 1.46 diff -u -p -r1.46 lyxinclude.m4 --- config/lyxinclude.m4 2001/09/11 13:13:02 1.46 +++ config/lyxinclude.m4 2001/10/01 14:46:51 @@ -161,20 +161,7 @@ cross_compiling=$ac_cv_prog_cxx_cross AC_DEFUN(LYX_PROG_CXX, [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl -AC_MSG_CHECKING([for a working C++ compiler]) -LYX_SEARCH_PROG(CXX, $CCC g++ gcc c++ CC cxx xlC cc++, LYX_PROG_CXX_WORKS) - -if test -z "$CXX" ; then - AC_ERROR([Unable to find a working C++ compiler]) -fi - -AC_SUBST(CXX) -AC_MSG_RESULT($CXX) - -AC_MSG_CHECKING([whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross- compiler]) -AC_MSG_RESULT($cross_compiling) - -AC_PROG_CXX_GNU +AC_PROG_CXX ### We might want to get or shut warnings. AC_ARG_ENABLE(warnings, <-- cut -- Better one, I think: split LYX_PROG_CXX Comments? -- Yves