2 files changed, 23 insertions, 52 deletions
diff --git a/m4/ax_prog_cc_for_build.m4 b/m4/ax_prog_cc_for_build.m4
index 08095a83dfc..6369809aadd 100644
--- a/m4/ax_prog_cc_for_build.m4
+++ b/m4/ax_prog_cc_for_build.m4
@@ -40,30 +40,9 @@ AC_REQUIRE([AC_PROG_CC])dnl
 AC_REQUIRE([AC_PROG_CPP])dnl
 AC_REQUIRE([AC_EXEEXT])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_CPP], ac_cv_build_prog_CPP)dnl
 pushdef([ac_cv_prog_gcc], ac_cv_build_prog_gcc)dnl
 pushdef([ac_cv_prog_cc_works], ac_cv_build_prog_cc_works)dnl
@@ -91,16 +70,21 @@ pushdef([ac_cv_host_os], ac_cv_build_os)dnl
 pushdef([ac_cpp], ac_build_cpp)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_CC
 AC_PROG_CPP
 AC_EXEEXT
 
+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_cpp])dnl
@@ -114,6 +98,7 @@ popdef([host_vendor])dnl
 popdef([host_cpu])dnl
 popdef([host_alias])dnl
 popdef([host])dnl
+popdef([LDFLAGS])dnl
 popdef([CPPFLAGS])dnl
 popdef([CFLAGS])dnl
 popdef([CPP])dnl
@@ -123,10 +108,10 @@ popdef([ac_exeext])dnl
 popdef([ac_cv_objext])dnl
 popdef([ac_cv_exeext])dnl
 popdef([ac_cv_prog_cc_g])dnl
-popdef([ac_cv_prog_cc_works])dnl
 popdef([ac_cv_prog_cc_cross])dnl
+popdef([ac_cv_prog_cc_works])dnl
 popdef([ac_cv_prog_gcc])dnl
-popdef([cross_compiling])dnl
+popdef([ac_cv_prog_CPP])dnl
 
 dnl Finally, set Makefile variables
 dnl
diff --git a/m4/ax_prog_cxx_for_build.m4 b/m4/ax_prog_cxx_for_build.m4
index 4a099f9fbd8..ecf8db94e48 100644
--- a/m4/ax_prog_cxx_for_build.m4
+++ b/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