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| author | jcorgan | 2008-08-24 17:41:07 +0000 |
|---|---|---|
| committer | jcorgan | 2008-08-24 17:41:07 +0000 |
| commit | 34af4364456b9005efee3c3986ea0f4dce87c99e (patch) | |
| tree | 06dc2b36e42a00985364f043748f9ab1881bde0b /configure.ac | |
| parent | 66a225bf721cd61c736879bdf8ab44674319426d (diff) | |
| download | gnuradio-34af4364456b9005efee3c3986ea0f4dce87c99e.tar.gz gnuradio-34af4364456b9005efee3c3986ea0f4dce87c99e.tar.bz2 gnuradio-34af4364456b9005efee3c3986ea0f4dce87c99e.zip | |
Fix compiler warnings across the tree. Adds --enable-warnings-as-errors configure option. Currently compiles with no warnings with GCC 4.2.3 on Ubuntu 8.04.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9396 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/configure.ac b/configure.ac index 0986a9fdb..14e982b34 100644 --- a/configure.ac +++ b/configure.ac @@ -40,6 +40,13 @@ LF_CONFIGURE_CC LF_CONFIGURE_CXX GR_LIB64 dnl check for lib64 suffix after choosing compilers +cxx_warnings_as_errors="" +AC_ARG_ENABLE( + [warnings-as-errors], + [--enable-warnings-as-errors Treat compiler warnings as errors], + [cxx_warnings_as_errors="-Werror"] +) + dnl The three macros above are known to override CXXFLAGS if the user dnl didn't specify them. Though I'm sure somebody thought this was dnl a good idea, it makes it hard to use other than -g -O2 when compiling @@ -50,16 +57,16 @@ dnl the output of swig use use -O1 if we're using g++. dnl See Makefile.common for the rest of the magic. if test "$user_set_cxxflags" != yes; then autoconf_default_CXXFLAGS="$CXXFLAGS" - CXXFLAGS="" + CXXFLAGS=$cxx_warnings_as_errors if test "$GXX" = yes; then case "$host_cpu" in powerpc*) dnl "-O1" is broken on the PPC for some reason dnl (at least as of g++ 4.1.1) - swig_CXXFLAGS="-g1 -O2" + swig_CXXFLAGS="-g1 -O2 -fno-strict-aliasing" ;; *) - swig_CXXFLAGS="-g -O1" + swig_CXXFLAGS="-g -O1 -fno-strict-aliasing" ;; esac fi @@ -246,7 +253,7 @@ GR_SUBVERSION dnl Component specific configuration dnl The order of the GR_ macros determines the order of compilation dnl For -any- checks on $enable_all_components -dnl use the following guildlines: +dnl use the following guidelines: dnl yes : --enable-all-components was specified, so error out if any dnl components do not pass configuration checks. dnl no : --disable-all-components was specified, so try to build the |