Don't distinguish between "GCC" and "Clang" extra -W flags.

We test whether a given compiler supports a given -W flag, so we don't
need to separate them and check them only for particular compilers.

To make that even clearer, rename the --enable option from
--enable-extra-gcc-checks to --enable-extra-compiler-checks, and
document it as just "do additional -W checks", and rename the
WIRESHARK_EXTRA_GCC_ CMake variables to WIRESHARK_EXTRA_COMPILER_.

Sync up the lists of warning flags in CMake with the lists in autoconf.

Uncomment -Wdocumentation while we're at it.  If it doesn't work *at
all*, comment it out until it's fixed, or, better yet, fix it; if it
still produces warnings, we just leave it among the "extra" flags.

Change-Id: I4042affdade612e4025e2881d08f1ca69d759626
Reviewed-on: https://code.wireshark.org/review/1226
Reviewed-by: Guy Harris <guy@alum.mit.edu>

1 files changed, 1 insertions, 1 deletions

diff --git a/acinclude.m4 b/acinclude.m4
index 3c9ec8be1c..136fc27914 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -2219,7 +2219,7 @@ CC is not __clang__
     ]])],
     [
       CC_IS_CLANG='yes'
-      CFLAGS="$CFLAGS -Qunused-arguments"
+      CFLAGS="$CFLAGS"
     ],
     CC_IS_CLANG='no'
     )