AC_SUBST(exeext)
+dnl * Booting from .hc files?
+#--------------------------------------------------------------
+AC_ARG_ENABLE(hc-boot,
+ [
+Boot the Glasgow Haskell Compiler from intermediate .hc files.
+(This option is mostly of interest for porters.)
+ ],
+
+ BootingFromHc=YES,
+ BootingFromHc=NO
+)
+AC_SUBST(BootingFromHc)
+
# -------------------------------------------------------------------------
dnl
dnl * _GENERAL_ CONFIGURATION CHECKS
AC_SUBST(CompressCmd)
AC_SUBST(CompressSuffix)
-#
+dnl
dnl ** check for installed happy binary + version
-#
+dnl (don't do it if we're booting from .hc files though.)
+if (test "$BootingFromHc" = "NO"); then
AC_HAPPY
-
-if test x"$HappyCmd" != x; then
- if expr $HappyVersion \< "1.3" >/dev/null; then
- echo " Happy Version 1.3 or later is required to compile GHC."
- echo " Using the Happy sources in the tree.";
- HappyCmd=""
- fi
-fi
-
+fi;
#
#
dnl ** check for installed lx binary
AC_STRUCT_TIMEZONE
#
-dnl what's the type of timezone?
+dnl ** what's the type of timezone?
AC_TYPE_TIMEZONE
#
-dnl do we have altzone?
+dnl ** do we have altzone?
AC_ALTZONE
+dnl ** what are the sizes of various types
+dnl (these must come before GHC_CHECK_ALIGNMENT)
+AC_CHECK_SIZEOF(unsigned int,4)
+AC_CHECK_SIZEOF(float, 4)
+AC_CHECK_SIZEOF(double, 8)
+AC_CHECK_SIZEOF(long, 4)
+AC_CHECK_SIZEOF(void *, 4)
+
+dnl ** what are alignment constraints on various types
+GHC_CHECK_ALIGNMENT(unsigned int) dnl redundant but harmless
+GHC_CHECK_ALIGNMENT(long)
+GHC_CHECK_ALIGNMENT(float)
+GHC_CHECK_ALIGNMENT(double)
+
#
dnl ** check for specific library functions that we are interested in
#
AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect setitimer stat sysconf timelocal times vadvise vfork)
#
+dnl ** check whether this machine has GMP 2.0 installed
+#
+AC_CHECK_LIB(gmp, mpz_fdiv_qr, HaveLibGmp=YES, HaveLibGmp=NO)
+AC_SUBST(HaveLibGmp)
+
+#
# Misc
#
dnl ** can we get alloca?
AC_FUNC_ALLOCA
dnl ** determine whether or not const works
AC_C_CONST
+dnl ** are we big endian?
+AC_C_BIGENDIAN
dnl ** determine the type of signal()
AC_TYPE_SIGNAL
#
AC_UNDERSCORE
-#
-dnl ** check the size of various C types
-#
-AC_CHECK_SIZEOF(int, 4)
-AC_CHECK_SIZEOF(long, 4)
-AC_CHECK_SIZEOF(void *, 4)
-
AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )
echo ''