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Diffstat (limited to 'mesalib/m4/ax_prog_cxx_for_build.m4')
-rw-r--r--mesalib/m4/ax_prog_cxx_for_build.m438
1 files changed, 12 insertions, 26 deletions
diff --git a/mesalib/m4/ax_prog_cxx_for_build.m4 b/mesalib/m4/ax_prog_cxx_for_build.m4
index 4a099f9fb..ecf8db94e 100644
--- a/mesalib/m4/ax_prog_cxx_for_build.m4
+++ b/mesalib/m4/ax_prog_cxx_for_build.m4
@@ -38,30 +38,9 @@ AC_REQUIRE([AX_PROG_CC_FOR_BUILD])dnl
AC_REQUIRE([AC_PROG_CXX])dnl
AC_REQUIRE([AC_PROG_CXXCPP])dnl
AC_REQUIRE([AC_CANONICAL_SYSTEM])dnl
-dnl
-pushdef([AC_TRY_COMPILER], [
-cat > conftest.$ac_ext << EOF
-#line __oline__ "configure"
-#include "confdefs.h"
-[$1]
-EOF
-# If we can't run a trivial program, we are probably using a cross
-compiler.
-# Fail miserably.
-if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} && (./conftest;
-exit) 2>/dev/null; then
- [$2]=yes
-else
- echo "configure: failed program was:" >&AC_FD_CC
- cat conftest.$ac_ext >&AC_FD_CC
- [$2]=no
-fi
-[$3]=no
-rm -fr conftest*])dnl
dnl Use the standard macros, but make them use other variable names
dnl
-pushdef([cross_compiling], [#])dnl
pushdef([ac_cv_prog_CXXCPP], ac_cv_build_prog_CXXCPP)dnl
pushdef([ac_cv_prog_gxx], ac_cv_build_prog_gxx)dnl
pushdef([ac_cv_prog_cxx_works], ac_cv_build_prog_cxx_works)dnl
@@ -70,6 +49,7 @@ pushdef([ac_cv_prog_cxx_g], ac_cv_build_prog_cxx_g)dnl
pushdef([CXX], CXX_FOR_BUILD)dnl
pushdef([CXXCPP], CXXCPP_FOR_BUILD)dnl
pushdef([CXXFLAGS], CXXFLAGS_FOR_BUILD)dnl
+pushdef([CPPFLAGS], CPPFLAGS_FOR_BUILD)dnl
pushdef([CXXCPPFLAGS], CXXCPPFLAGS_FOR_BUILD)dnl
pushdef([host], build)dnl
pushdef([host_alias], build_alias)dnl
@@ -84,15 +64,20 @@ pushdef([ac_cv_host_os], ac_cv_build_os)dnl
pushdef([ac_cxxcpp], ac_build_cxxcpp)dnl
pushdef([ac_compile], ac_build_compile)dnl
pushdef([ac_link], ac_build_link)dnl
-pushdef([ac_tool_prefix], [#])dnl
+
+save_cross_compiling=$cross_compiling
+save_ac_tool_prefix=$ac_tool_prefix
+cross_compiling=no
+ac_tool_prefix=
AC_PROG_CXX
AC_PROG_CXXCPP
+ac_tool_prefix=$save_ac_tool_prefix
+cross_compiling=$save_cross_compiling
+
dnl Restore the old definitions
dnl
-popdef([AC_TRY_COMPILER])dnl
-popdef([ac_tool_prefix])dnl
popdef([ac_link])dnl
popdef([ac_compile])dnl
popdef([ac_cxxcpp])dnl
@@ -107,14 +92,15 @@ popdef([host_cpu])dnl
popdef([host_alias])dnl
popdef([host])dnl
popdef([CXXCPPFLAGS])dnl
+popdef([CPPFLAGS])dnl
popdef([CXXFLAGS])dnl
popdef([CXXCPP])dnl
popdef([CXX])dnl
popdef([ac_cv_prog_cxx_g])dnl
-popdef([ac_cv_prog_cxx_works])dnl
popdef([ac_cv_prog_cxx_cross])dnl
+popdef([ac_cv_prog_cxx_works])dnl
popdef([ac_cv_prog_gxx])dnl
-popdef([cross_compiling])dnl
+popdef([ac_cv_prog_CXXCPP])dnl
dnl Finally, set Makefile variables
dnl