diff options
Diffstat (limited to 'config/warnings.m4')
| -rw-r--r-- | config/warnings.m4 | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/config/warnings.m4 b/config/warnings.m4 index 8b832382be..af99ffec08 100644 --- a/config/warnings.m4 +++ b/config/warnings.m4 @@ -1,6 +1,6 @@ # Autoconf include file defining macros related to compile-time warnings. -# Copyright 2004, 2005 Free Software Foundation, Inc. +# Copyright 2004, 2005, 2007 Free Software Foundation, Inc. #This file is part of GCC. @@ -19,13 +19,14 @@ #Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA #02110-1301, USA. -# ACX_PROG_CC_WARNING_OPTS([-Wfoo -Wbar -Wbaz]) -# Sets @WARN_CFLAGS@ to the subset of the given options which the +# ACX_PROG_CC_WARNING_OPTS(WARNINGS, [VARIABLE = WARN_CFLAGS@) +# Sets @VARIABLE@ to the subset of the given options which the # compiler accepts. AC_DEFUN([ACX_PROG_CC_WARNING_OPTS], [AC_REQUIRE([AC_PROG_CC])dnl -AC_SUBST([WARN_CFLAGS])dnl -WARN_CFLAGS= +m4_pushdef([acx_Var], [m4_default([$2], [WARN_CFLAGS])])dnl +AC_SUBST(acx_Var)dnl +acx_Var= save_CFLAGS="$CFLAGS" for option in $1; do AS_VAR_PUSHDEF([acx_Woption], [acx_cv_prog_cc_warning_$option]) @@ -36,20 +37,22 @@ for option in $1; do [AS_VAR_SET(acx_Woption, no)]) ]) AS_IF([test AS_VAR_GET(acx_Woption) = yes], - [WARN_CFLAGS="$WARN_CFLAGS${WARN_CFLAGS:+ }$option"]) + [acx_Var="$acx_Var${acx_Var:+ }$option"]) AS_VAR_POPDEF([acx_Woption])dnl done CFLAGS="$save_CFLAGS" +m4_popdef([acx_Var])dnl ])# ACX_PROG_CC_WARNING_OPTS -# ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long ...]) -# Sets WARN_PEDANTIC to "-pedantic" + the argument, if the compiler is GCC +# ACX_PROG_CC_WARNING_ALMOST_PEDANTIC(WARNINGS, [VARIABLE = WARN_PEDANTIC) +# Append to VARIABLE "-pedantic" + the argument, if the compiler is GCC # and accepts all of those options simultaneously, otherwise to nothing. AC_DEFUN([ACX_PROG_CC_WARNING_ALMOST_PEDANTIC], [AC_REQUIRE([AC_PROG_CC])dnl -AC_SUBST([WARN_PEDANTIC])dnl +m4_pushdef([acx_Var], [m4_default([$2], [WARN_PEDANTIC])])dnl +AC_SUBST(acx_Var)dnl AS_VAR_PUSHDEF([acx_Pedantic], [acx_cv_prog_cc_pedantic_$1])dnl -WARN_PEDANTIC= +acx_Var= AS_IF([test "$GCC" = yes], [AC_CACHE_CHECK([whether $CC supports -pedantic $1], acx_Pedantic, [save_CFLAGS="$CFLAGS" @@ -59,9 +62,10 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])], [AS_VAR_SET(acx_Pedantic, no)]) CFLAGS="$save_CFLAGS"]) AS_IF([test AS_VAR_GET(acx_Pedantic) = yes], - [WARN_PEDANTIC="-pedantic $1"]) + [acx_Var="$acx_Var${acx_Var:+ }-pedantic $1"]) ]) AS_VAR_POPDEF([acx_Pedantic])dnl +m4_popdef([acx_Var])dnl ])# ACX_PROG_CC_WARNING_ALMOST_PEDANTIC # ACX_PROG_CC_WARNINGS_ARE_ERRORS([x.y.z]) |