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authorPaolo Bonzini <bonzini@gnu.org>2007-01-11 14:12:07 +0000
committerPaolo Bonzini <bonzini@gnu.org>2007-01-11 14:12:07 +0000
commitaa0752514b9c4c60fa5802cb594738c52d0fef73 (patch)
treed8cfcb6fd5df0b70253523190d2bdc8262457600 /config/warnings.m4
parent59e0647f0d3c0176557aef0f0d6fc14ee44a0b2a (diff)
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2007-01-11 Paolo Bonzini <bonzini@gnu.org>
* config/warnings.m4: Add second parameter with name of variable. Always append to the variable if it exists.
Diffstat (limited to 'config/warnings.m4')
-rw-r--r--config/warnings.m426
1 files changed, 15 insertions, 11 deletions
diff --git a/config/warnings.m4 b/config/warnings.m4
index 8b83238..af99ffe 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])