AC_MINIX
AM_PROG_CC_STDC
+
+## Needed for building DLLs on Cygwin, before AM_PROG_LIBTOOL
+AC_LIBTOOL_WIN32_DLL
AM_PROG_LIBTOOL
AC_CHECK_PROG(have_makeinfo, makeinfo, yes, no)
AC_MSG_CHECKING(for working IPv6 support)
AC_CACHE_VAL(guile_cv_have_ipv6,
-[AC_TRY_COMPILE([#include <netinet/in.h>
+[AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#include <netinet/in.h>
#include <sys/socket.h>],
[struct sockaddr_in6 a; a.sin6_family = AF_INET6;],
guile_cv_have_ipv6=yes, guile_cv_have_ipv6=no)])
# included in rfc2553 but not in older implementations, e.g., glibc 2.1.3.
AC_MSG_CHECKING(whether sockaddr_in6 has sin6_scope_id)
AC_CACHE_VAL(guile_cv_have_sin6_scope_id,
-[AC_TRY_COMPILE([#include <netinet/in.h>],
+[AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#include <netinet/in.h>],
[struct sockaddr_in6 sok; sok.sin6_scope_id = 0;],
guile_cv_have_sin6_scope_id=yes, guile_cv_have_sin6_scope_id=no)])
AC_MSG_RESULT($guile_cv_have_sin6_scope_id)
AC_REPLACE_FUNCS(inet_aton putenv strerror memmove mkstemp)
+AC_CHECK_HEADERS(floatingpoint.h ieeefp.h nan.h)
+
+AC_CHECK_FUNCS(finite isinf isnan copysign)
+
# When testing for the presence of alloca, we need to add alloca.o
# explicitly to LIBOBJS to make sure that it is translated to
# `alloca.lo' for libtool later on. This can and should be done more cleanly.
fi
fi
+## Cross building
+if test "$cross_compiling" = "yes"; then
+ AC_MSG_CHECKING(cc for build)
+ ## /usr/bin/cc still uses wrong assembler
+ ## CC_FOR_BUILD="${CC_FOR_BUILD-/usr/bincc}"
+ CC_FOR_BUILD="${CC_FOR_BUILD-PATH=/usr/bin:$PATH cc}"
+else
+ CC_FOR_BUILD="${CC_FOR_BUILD-$CC}"
+fi
+AC_ARG_WITH(cc-for-build,
+ [ --with-cc-for-build=CC native C compiler, to be used during build])
+test -n "$with_cc_for_build" && CC_FOR_BUILD="$with_cc_for_build"
+
+## AC_MSG_CHECKING("if we are cross compiling")
+## AC_MSG_RESULT($cross_compiling)
+if test "$cross_compiling" = "yes"; then
+ AC_MSG_RESULT($CC_FOR_BUILD)
+fi
+
+## No need as yet to be more elaborate
+CCLD_FOR_BUILD="$CC_FOR_BUILD"
+
+AC_SUBST(cross_compiling)
+AC_SUBST(CC_FOR_BUILD)
+AC_SUBST(CCLD_FOR_BUILD)
+
+## libtool erroneously calls CC_FOR_BUILD HOST_CC;
+## --HOST is the platform that PACKAGE is compiled for.
+HOST_CC="$CC_FOR_BUILD"
+AC_SUBST(HOST_CC)
+
+if test "$cross_compiling" = "yes"; then
+ AC_MSG_CHECKING(guile for build)
+ GUILE_FOR_BUILD="${GUILE_FOR_BUILD-guile}"
+else
+ GUILE_FOR_BUILD='$(preinstguile)'
+fi
+AC_ARG_WITH(guile-for-build,
+ [ --with-guile-for-build=guile native guile executable, to be used during build])
+test -n "$with_guile_for_build" && GUILE_FOR_BUILD="$with_guile_for_build"
+
+## AC_MSG_CHECKING("if we are cross compiling")
+## AC_MSG_RESULT($cross_compiling)
+if test "$cross_compiling" = "yes"; then
+ AC_MSG_RESULT($GUILE_FOR_BUILD)
+fi
+AC_SUBST(GUILE_FOR_BUILD)
+
## If we're using GCC, ask for aggressive warnings.
case "$GCC" in
yes )