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* lib/autoconf/c.m4 (AC_PROG_CXX_C_O): Require AC_PROG_CXX,

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and set the language to C++ (analogous to the equivalent Fortran
tests).
This commit is contained in:
Ralf Wildenhues 2006-05-20 15:49:27 +00:00
parent 6437e5265a
commit 8362e4e987
2 changed files with 7 additions and 1 deletions
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4
ChangeLog
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@ -1,5 +1,9 @@
2006-05-20 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* lib/autoconf/c.m4 (AC_PROG_CXX_C_O): Require AC_PROG_CXX,
and set the language to C++ (analogous to the equivalent Fortran
tests).
* lib/autoconf/c.m4 (AC_PROG_CXX_C_O): New macro.
* doc/autoconf.texi (C++ Compiler): Document it.
* lib/autoconf/fortran.m4 (_AC_PROG_FC_C_O): Adjust comment.

4
lib/autoconf/c.m4
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@ -829,7 +829,8 @@ fi[]dnl
# Test if the C++ compiler accepts the options `-c' and `-o'
# simultaneously, and define `CXX_NO_MINUS_C_MINUS_O' if it does not.
AC_DEFUN([AC_PROG_CXX_C_O],
[AC_LANG_ASSERT([C++])dnl
[AC_REQUIRE([AC_PROG_CXX])dnl
AC_LANG_PUSH([C++])dnl
AC_CACHE_CHECK([whether $CXX understands -c and -o together],
[ac_cv_prog_cxx_c_o],
[AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
@ -850,6 +851,7 @@ if test $ac_cv_prog_cxx_c_o = no; then
[Define to 1 if your C++ compiler doesn't accept
-c and -o together.])
fi
AC_LANG_POP([C++])dnl
])# AC_PROG_CXX_C_O