diff options
Diffstat (limited to 'acinclude.m4')
| -rw-r--r-- | acinclude.m4 | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/acinclude.m4 b/acinclude.m4 index 1618a439..b3794893 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -409,10 +409,30 @@ EOF fi]) AS_IF([test $ovs_cv_gnu_make_if = yes], [$1], [$2])]) +dnl OVS_CHECK_SPARSE_TARGET +dnl +dnl The "cgcc" script from "sparse" isn't very good at detecting the +dnl target for which the code is being built. This helps it out. +AC_DEFUN([OVS_CHECK_SPARSE_TARGET], + [AC_CACHE_CHECK( + [target hint for cgcc], + [ac_cv_sparse_target], + [AS_CASE([`$CC -dumpmachine 2>/dev/null`], + [i?86-* | athlon-*], [ac_cv_sparse_target=x86], + [x86_64-*], [ac_cv_sparse_target=x86_64], + [ac_cv_sparse_target=other])]) + AS_CASE([$ac_cv_sparse_target], + [x86], [SPARSEFLAGS= CGCCFLAGS=-target=i86], + [x86_64], [SPARSEFLAGS=-m64 CGCCFLAGS=-target=x86_64], + [SPARSEFLAGS= CGCCFLAGS=]) + AC_SUBST([SPARSEFLAGS]) + AC_SUBST([CGCCFLAGS])]) + dnl OVS_ENABLE_SPARSE AC_DEFUN([OVS_ENABLE_SPARSE], - [OVS_MAKE_HAS_IF( + [AC_REQUIRE([OVS_CHECK_SPARSE_TARGET]) + OVS_MAKE_HAS_IF( [AC_CONFIG_COMMANDS_PRE( [: ${SPARSE=sparse} AC_SUBST([SPARSE]) - CC='$(if $(C),REAL_CC="'"$CC"'" CHECK="$(SPARSE) -I $(top_srcdir)/include/sparse" cgcc,'"$CC"')'])])]) + CC='$(if $(C),REAL_CC="'"$CC"'" CHECK="$(SPARSE) -I $(top_srcdir)/include/sparse $(SPARSEFLAGS)" cgcc $(CGCCFLAGS),'"$CC"')'])])]) |