diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 47 |
1 files changed, 43 insertions, 4 deletions
diff --git a/configure.in b/configure.in index 50aabe47..1683d3f1 100644 --- a/configure.in +++ b/configure.in @@ -39,16 +39,55 @@ AC_PREFIX_DEFAULT() # # Programs # -AC_PROG_CC +AC_PROG_CC_LOCAL AC_PROG_AWK AC_PROG_INSTALL -AC_PROG_LEX -AC_PROG_YACC AC_CHECK_TOOL(MIG, mig, mig) -if test $host != $build; then +if test $cross_compiling = yes; then AC_CHECK_PROG(BUILD_CC, gcc cc) + CC=$BUILD_CC +fi + +AC_PROG_LEX +AC_PROG_YACC + +if test $cross_compiling = yes ; then + CC=$ac_cv_prog_CC +fi + + +usable_libc='yes' +needed_funcs='memcpy memset bcopy bzero htonl ntohl ntohs' +AC_CHECK_FUNCS($needed_funcs, , usable_libc=no) +if test $usable_libc = no ; then + echo "Support functions not found using $CC, trying $BUILD_CC." + CC="$BUILD_CC" + for i in $needed_funcs ; do + unset ac_cv_func_$i + done + usable_libc=yes + AC_CHECK_FUNCS($needed_funcs, , usable_libc=no) + if test $usable_libc = no ; then + echo "Configuration problem:" 1>&2 + echo "Please set installed-clib in the toplevel Makefile so the functions:" + echo "$needed_funcs are available." + exit 1 + else + changequote(,) + set -- `$BUILD_CC -v 2>&1 | sed -n 's/.*from \(.*\)\/lib\/gcc-lib\/\([^/][^/]*\).*/\1 \2/p'` + changequote([,]) + if test -f "$1/$2/lib/libc.a" ; then + installed_clib=$1/$2/lib/libc.a + else + installed_clib=$1/lib/libc.a + fi + fi + CC=$ac_cv_prog_CC +else + installed_clib=$prefix/lib/libcrt.a fi +AC_SUBST(installed_clib) # Set up `machine' link in build directory for easier header file location. AC_LINK_FILES(${systype}/${systype},machine) |