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| author | Guy Harris <guy@alum.mit.edu> | 2013-12-24 18:43:42 +0000 |
|---|---|---|
| committer | Guy Harris <guy@alum.mit.edu> | 2013-12-24 18:43:42 +0000 |
| commit | 8713e0457b9ce2993d04d33e9eae715826850269 (patch) | |
| tree | e0358623622e4d0b290c700739efadb7d2bd23d6 /configure.ac | |
| parent | 68e7ccc5dc234425ae758f63bdbb8194c5c8d6a6 (diff) | |
Some warning options are, for reasons not entirely obvious to me, not
supported by some versions of g++ even though the corresponding version
of gcc supports them. Other versions of g++, and clang, support them.
Check, before adding a -W option for C++, whether the compiler supports
it; that check must be done with -Werror, at least with g++, in order to
get a non-zero exit status from the compiler.
svn path=/trunk/; revision=54447
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index 8fec259059..2505ac1a27 100644 --- a/configure.ac +++ b/configure.ac @@ -750,12 +750,18 @@ fi AC_SUBST(HAVE_OSX_PACKAGING) # -# Some compilers have to be told to fail on unknown warning errors; +# Some compilers have to be told to fail when passed an unknown -W flag; # make sure we do that. # AC_WIRESHARK_CHECK_UNKNOWN_WARNING_OPTION_ERROR # +# Some C++ compilers have to be told to fail when passed a -W flag that +# they don't think should apply to C++; make sure we do that. +# +AC_WIRESHARK_CHECK_NON_CXX_WARNING_OPTION_ERROR + +# # Try to add some additional gcc checks to CFLAGS # AC_ARG_ENABLE(extra-gcc-checks, @@ -801,7 +807,7 @@ AC_ARG_ENABLE(extra-gcc-checks, # # All the registration functions block these for now. # - AC_WIRESHARK_COMPILER_FLAGS_CHECK(-Wmissing-prototypes, C) + AC_WIRESHARK_COMPILER_FLAGS_CHECK(-Wmissing-prototypes) AC_WIRESHARK_COMPILER_FLAGS_CHECK(-Wmissing-declarations) # # A bunch of "that might not work on SPARC" code blocks |