| # FIXME: We temporarily define our own version of AC_PROG_CC. This is |
| # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We |
| # are probably using a cross compiler, which will not be able to fully |
| # link an executable. This should really be fixed in autoconf |
| # itself. |
| |
| AC_DEFUN(LIB_AC_PROG_CC, |
| [AC_BEFORE([$0], [AC_PROG_CPP])dnl |
| dnl Fool anybody using AC_PROG_CC. |
| AC_PROVIDE([AC_PROG_CC]) |
| AC_CHECK_PROG(CC, gcc, gcc) |
| if test -z "$CC"; then |
| AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) |
| test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) |
| fi |
| |
| AC_PROG_CC_GNU |
| |
| if test $ac_cv_prog_gcc = yes; then |
| GCC=yes |
| dnl Check whether -g works, even if CFLAGS is set, in case the package |
| dnl plays around with CFLAGS (such as to build both debugging and |
| dnl normal versions of a library), tasteless as that idea is. |
| ac_test_CFLAGS="${CFLAGS+set}" |
| ac_save_CFLAGS="$CFLAGS" |
| CFLAGS= |
| AC_PROG_CC_G |
| if test "$ac_test_CFLAGS" = set; then |
| CFLAGS="$ac_save_CFLAGS" |
| elif test $ac_cv_prog_cc_g = yes; then |
| CFLAGS="-g -O2" |
| else |
| CFLAGS="-O2" |
| fi |
| else |
| GCC= |
| test "${CFLAGS+set}" = set || CFLAGS="-g" |
| fi |
| ]) |
