1 dnl This provides configure definitions used by all the winsup
2 dnl configure.in files.
4 # FIXME: We temporarily define our own version of AC_PROG_CC. This is
5 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
6 # are probably using a cross compiler, which will not be able to fully
7 # link an executable. This should really be fixed in autoconf
10 AC_DEFUN([LIB_AC_PROG_CC_GNU],
11 [AC_CACHE_CHECK(whether we are using GNU C, ac_cv_prog_gcc,
12 [dnl The semicolon is to pacify NeXT's syntax-checking cpp.
13 cat > conftest.c <<EOF
18 if AC_TRY_COMMAND(${CC-cc} -E conftest.c) | egrep yes >/dev/null 2>&1; then
24 AC_DEFUN([LIB_AC_PROG_CC],
25 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
26 AC_CHECK_TOOL(CC, gcc, gcc)
29 test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
32 AC_DEFUN([LIB_AC_PROG_CXX],
33 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
34 AC_CHECK_TOOL(CXX, g++, g++)
35 if test -z "$CXX"; then
36 AC_CHECK_TOOL(CXX, g++, c++, , , )
39 test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])