diff options
Diffstat (limited to 'config')
| -rw-r--r-- | config/open-axiom.m4 | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/config/open-axiom.m4 b/config/open-axiom.m4 index 706f5919..c7b4250f 100644 --- a/config/open-axiom.m4 +++ b/config/open-axiom.m4 @@ -254,6 +254,31 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], [AC_MSG_ERROR([OpenAxiom requires a C++11 compiler])]) ]) +dnl ------------------------------- +dnl -- OPENAXIOM_CXX_GROK_OPTION -- +dnl ------------------------------- +dnl Check whether the C++ compiler accepts a given option. +dnl In case of success, augment the accumulator passed in +dnl (optional) second argument -- default: CXXFLAGS. +AC_DEFUN([OPENAXIOM_CXX_GROK_OPTION], [ +opt=$1 # mandatory +accumulator=$2 # optional +if test -z $accumulator; then + accumulator=CXXFLAGS +fi +current_options=\$${accumulator} +oa_saved_cxxflags="$CXXFLAGS" +AC_MSG_CHECKING([whether $CXX supports "$opt"]) +CXXFLAGS="$CXXFLAGS $opt" +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], + [AC_MSG_RESULT([yes])] + [CXXFLAGS=$oa_saved_cxxflags] + [eval "$accumulator=\"$current_options $opt\""], + [AC_MSG_RESULT([no])] + [CXXFLAGS=$oa_saved_cxxflags]) +]) + + dnl -------------------------- dnl -- OPENAXIOM_CHECK_LLVM -- dnl -------------------------- @@ -326,6 +351,17 @@ OPENAXIOM_CHECK_LLVM ]) dnl --------------------------------- +dnl -- OPENAXIOM_CXX_EXTRA_OPTIONS -- +dnl --------------------------------- +AC_DEFUN([OPENAXIOM_EXTRA_CXX_OPTIONS], [ +oa_extra_cxxflags= +OPENAXIOM_CXX_GROK_OPTIONS([-Wno-mismatch-tags],[oa_extra_cxxflags]) +OPENAXIOM_CXX_GROK_OPTIONS([-Wno-string-plus-int],[oa_extra_cxxflags]) + +AC_SUBST(oa_extra_cxxflags) +]) + +dnl --------------------------------- dnl -- OPENAXIOM_SATISFY_GCL_NEEDS -- dnl --------------------------------- dnl GCL assumes that the C compiler is from GNU. |