maint: show which compiler warning triggered

* acinclude.m4 (LIBVIRT_COMPILE_WARNINGS): Add
-fdiagnostics-show-option.
This commit is contained in:
Eric Blake 2010-03-30 10:09:21 -06:00
parent 4eb8022260
commit 7b5114f62b

View File

@ -13,13 +13,17 @@ AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[
dnl ******************************
AC_ARG_ENABLE(compile-warnings,
AC_HELP_STRING([--enable-compile-warnings=@<:@no/minimum/yes/maximum/error@:>@],
[Turn on compiler warnings]),,
[AC_HELP_STRING([--enable-compile-warnings=@<:@no/minimum/yes/maximum/error@:>@],
[Turn on compiler warnings])],,
[enable_compile_warnings="m4_default([$1],[maximum])"])
warnCFLAGS=
common_flags="-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fasynchronous-unwind-tables"
common_flags=
common_flags="$common_flags -Wp,-D_FORTIFY_SOURCE=2"
common_flags="$common_flags -fexceptions"
common_flags="$common_flags -fasynchronous-unwind-tables"
common_flags="$common_flags -fdiagnostics-show-option"
case "$enable_compile_warnings" in
no)