maint: show which compiler warning triggered

* acinclude.m4 (LIBVIRT_COMPILE_WARNINGS): Add -fdiagnostics-show-option.

maint: show which compiler warning triggered
* acinclude.m4 (LIBVIRT_COMPILE_WARNINGS): Add -fdiagnostics-show-option.
7b5114f6 · Eric Blake · 4eb80222 · 7b5114f6
隐藏空白更改
内联并排

Showing with 7 addition and 3 deletion

acinclude.m4 acinclude.m4 +7 -3

未找到文件。
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -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)