AC_MSG_NOTICE([CHECKS for programs])
#
AC_PROG_CC([cc gcc])
+# which switch to pass runtime path to dynamic libraries to the linker
+AC_CACHE_CHECK([if linker supports -R], ld_dashr, [
+ SAVE_LDFLAGS="${LDFLAGS}"
+ LDFLAGS="${SAVE_LDFLAGS} -R /"
+ AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [ld_dashr=yes], [ld_dashr=no])
+ LDFLAGS="${SAVE_LDFLAGS}"
+])
+if test "$ld_dashr" = "yes"; then
+ AC_SUBST(CC_LD_DYNPATH, [-R])
+else
+ AC_CACHE_CHECK([if linker supports -Wl,-rpath,], ld_wl_rpath, [
+ SAVE_LDFLAGS="${LDFLAGS}"
+ LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/"
+ AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [ld_wl_rpath=yes], [ld_wl_rpath=no])
+ LDFLAGS="${SAVE_LD_FLAGS}"
+ ])
+ if test "$ld_wl_rpath" = "yes"; then
+ AC_SUBST(CC_LD_DYNPATH, [-Wl,-rpath,])
+ else
+ AC_CACHE_CHECK([if linker supports -rpath], ld_rpath, [
+ SAVE_LDFLAGS="${LDFLAGS}"
+ LDFLAGS="${SAVE_LDFLAGS} -rpath /"
+ AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [ld_rpath=yes], [ld_rpath=no])
+ LDFLAGS="${SAVE_LD_FLAGS}"
+ ])
+ if test "$ld_rpath" = "yes"; then
+ AC_SUBST(CC_LD_DYNPATH, [-rpath])
+ else
+ AC_MSG_WARN([linker does not support runtime path to dynamic libraries])
+ fi
+ fi
+fi
#AC_PROG_INSTALL # needs install-sh or install.sh in sources
AC_CHECK_TOOLS(AR, [gar ar], :)
AC_CHECK_PROGS(TAR, [gtar tar])