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dnl This provides configure definitions used by all the winsup
dnl configure.in files.
# 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_GNU],
[AC_CACHE_CHECK(whether we are using GNU C, ac_cv_prog_gcc,
[dnl The semicolon is to pacify NeXT's syntax-checking cpp.
cat > conftest.c <<EOF
#ifdef __GNUC__
yes;
#endif
EOF
if AC_TRY_COMMAND(${CC-cc} -E conftest.c) | egrep yes >/dev/null 2>&1; then
ac_cv_prog_gcc=yes
else
ac_cv_prog_gcc=no
fi])])
AC_DEFUN([LIB_AC_PROG_CC],
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
AC_CHECK_TOOL(CC, gcc, gcc)
: ${CC:=gcc}
AC_PROG_CC
test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
])
AC_DEFUN([LIB_AC_PROG_CXX],
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
AC_CHECK_TOOL(CXX, g++, g++)
if test -z "$CXX"; then
AC_CHECK_TOOL(CXX, g++, c++, , , )
: ${CXX:=g++}
AC_PROG_CXX
test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
fi
CXXFLAGS='$(CFLAGS)'
])
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