Make the huge_val test run a C++ program not C
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31422 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/autoconf/m4/huge_val.m4 b/autoconf/m4/huge_val.m4
index 87f8d04..fd94c11 100644
--- a/autoconf/m4/huge_val.m4
+++ b/autoconf/m4/huge_val.m4
@@ -4,15 +4,15 @@
#
AC_DEFUN([AC_HUGE_VAL_CHECK],[
AC_CACHE_CHECK([for HUGE_VAL sanity], [ac_cv_huge_val_sanity],[
- AC_LANG_PUSH(C)
- CPPFLAGS=-pedantic
+ AC_LANG_PUSH([C++])
+ CXXFLAGS=-pedantic
AC_RUN_IFELSE(
AC_LANG_PROGRAM(
[#include <math.h>],
[double x = HUGE_VAL; return x != x; ]),
[ac_cv_huge_val_sanity=yes],[ac_cv_huge_val_sanity=no],
[ac_cv_huge_val_sanity=yes])
- AC_LANG_POP(C)
+ AC_LANG_POP([C++])
])
AC_SUBST(HUGE_VAL_SANITY,$ac_cv_huge_val_sanity)
])
diff --git a/configure b/configure
index 6699d67..7240657 100755
--- a/configure
+++ b/configure
@@ -29183,13 +29183,13 @@
echo $ECHO_N "(cached) $ECHO_C" >&6
else
- ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
+ ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
- CPPFLAGS=-pedantic
+ CXXFLAGS=-pedantic
if test "$cross_compiling" = yes; then
ac_cv_huge_val_sanity=yes
else