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configure.ac: Add header checks for fenv.h and complex.h.

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2013-10-31  Steve Ellcey  <sellcey@mips.com>

	* configure.ac: Add header checks for fenv.h and complex.h.
	* configure: Regenerate.

From-SVN: r204270
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Steve Ellcey 2013-10-31 17:12:35 +00:00 committed by Steve Ellcey
parent 9304f87611
commit 5e5f34bf63
3 changed files with 30 additions and 0 deletions
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5
libstdc++-v3/ChangeLog
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@ -1,3 +1,8 @@
2013-10-31 Steve Ellcey <sellcey@mips.com>
* configure.ac: Add header checks for fenv.h and complex.h.
* configure: Regenerate.
2013-10-31 Edward Smith-Rowland <3dw4rd@verizon.net>
Implement C++14 digit separators.

19
libstdc++-v3/configure vendored
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@ -18677,6 +18677,25 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
# Check for fenv.h and complex.h before GLIBCXX_CHECK_C99_TR1
# so that the check is done with the C compiler (not C++).
# Checking with C++ can break a canadian cross build if either
# file does not exist in C but does in C++.
for ac_header in fenv.h complex.h
do :
as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
eval as_val=\$$as_ac_Header
if test "x$as_val" = x""yes; then :
cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF
fi
done
# For C99 support to TR1.

6
libstdc++-v3/configure.ac
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@ -195,6 +195,12 @@ GLIBCXX_CHECK_S_ISREG_OR_S_IFREG
AC_CHECK_HEADERS(sys/uio.h)
GLIBCXX_CHECK_WRITEV
# Check for fenv.h and complex.h before GLIBCXX_CHECK_C99_TR1
# so that the check is done with the C compiler (not C++).
# Checking with C++ can break a canadian cross build if either
# file does not exist in C but does in C++.
AC_CHECK_HEADERS(fenv.h complex.h)
# For C99 support to TR1.
GLIBCXX_CHECK_C99_TR1