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| author | Julien Lerouge <jlerouge@apple.com> | 2009-10-26 19:58:44 +0000 |
|---|---|---|
| committer | Julien Lerouge <jlerouge@apple.com> | 2009-10-26 19:58:44 +0000 |
| commit | e4492f61213cdce5c495af1eb9328a6a47db7678 (patch) | |
| tree | 703bf36ae9830ef04a61cd2232576ce3278b2031 | |
| parent | 661ea989e9e8c9b481c60fa56b00b4ec529629b1 (diff) | |
| download | bcm5719-llvm-e4492f61213cdce5c495af1eb9328a6a47db7678.tar.gz bcm5719-llvm-e4492f61213cdce5c495af1eb9328a6a47db7678.zip | |
Add an autoconf test to check for optional compiler flags like
-Wno-missing-field-initializers or -Wno-variadic-macros.
llvm-svn: 85147
| -rw-r--r-- | llvm/Makefile.config.in | 6 | ||||
| -rw-r--r-- | llvm/autoconf/configure.ac | 6 | ||||
| -rw-r--r-- | llvm/autoconf/m4/cxx_flag_check.m4 | 2 |
3 files changed, 14 insertions, 0 deletions
diff --git a/llvm/Makefile.config.in b/llvm/Makefile.config.in index fc84c0bcb1b..90f1d22a54f 100644 --- a/llvm/Makefile.config.in +++ b/llvm/Makefile.config.in @@ -320,3 +320,9 @@ ENABLE_LLVMC_DYNAMIC = 0 # support (via the -load option). ENABLE_LLVMC_DYNAMIC_PLUGINS = 1 #@ENABLE_LLVMC_DYNAMIC_PLUGINS@ + +# Optional flags supported by the compiler +# -Wno-missing-field-initializers +NO_MISSING_FIELD_INITIALIZERS = @NO_MISSING_FIELD_INITIALIZERS@ +# -Wno-variadic-macros +NO_VARIADIC_MACROS = @NO_VARIADIC_MACROS@ diff --git a/llvm/autoconf/configure.ac b/llvm/autoconf/configure.ac index b9ad6bb494f..794326dd850 100644 --- a/llvm/autoconf/configure.ac +++ b/llvm/autoconf/configure.ac @@ -943,6 +943,12 @@ fi dnl Tool compatibility is okay if we make it here. AC_MSG_RESULT([ok]) +dnl Check optional compiler flags. +AC_MSG_CHECKING([optional compiler flags]) +CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros]) +CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers]) +AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS]) + dnl===-----------------------------------------------------------------------=== dnl=== dnl=== SECTION 5: Check for libraries diff --git a/llvm/autoconf/m4/cxx_flag_check.m4 b/llvm/autoconf/m4/cxx_flag_check.m4 new file mode 100644 index 00000000000..ab09f2af5cf --- /dev/null +++ b/llvm/autoconf/m4/cxx_flag_check.m4 @@ -0,0 +1,2 @@ +AC_DEFUN([CXX_FLAG_CHECK], + [AC_SUBST($1, `$CXX $2 -fsyntax-only -xc /dev/null 2>/dev/null && echo $2`)]) |
