diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 674ed1ee73..76c6487f08 100644 --- a/configure.ac +++ b/configure.ac @@ -190,6 +190,16 @@ AC_ARG_ENABLE([ccache], [use_ccache=$enableval], [use_ccache=auto]) +dnl Suppress warnings from external headers (e.g. Boost, Qt). +dnl May be useful if warnings from external headers clutter the build output +dnl too much, so that it becomes difficult to spot Bitcoin Core warnings +dnl or if they cause a build failure with --enable-werror. +AC_ARG_ENABLE([suppress-external-warnings], + [AS_HELP_STRING([--enable-suppress-external-warnings], + [Suppress warnings from external headers (default is no)])], + [suppress_external_warnings=$enableval], + [suppress_external_warnings=no]) + AC_ARG_ENABLE([lcov], [AS_HELP_STRING([--enable-lcov], [enable lcov testing (default is no)])], @@ -1149,6 +1159,18 @@ AC_SUBST(LEVELDB_CPPFLAGS) AC_SUBST(LIBLEVELDB) AC_SUBST(LIBMEMENV) +dnl SUPPRESSED_CPPFLAGS=SUPPRESS_WARNINGS([$SOME_CPPFLAGS]) +dnl Replace -I with -isystem in $SOME_CPPFLAGS to suppress warnings from +dnl headers from its include directories and return the result. +dnl See -isystem documentation: +dnl https://gcc.gnu.org/onlinedocs/gcc/Directory-Options.html +dnl https://clang.llvm.org/docs/ClangCommandLineReference.html#cmdoption-clang-isystem-directory +dnl Do not change "-I/usr/include" to "-isystem /usr/include" because that +dnl is not necessary (/usr/include is already a system directory) and because +dnl it would break GCC's #include_next. +AC_DEFUN([SUPPRESS_WARNINGS], + [$(echo $1 |${SED} -E -e 's/(^| )-I/\1-isystem /g' -e 's;-isystem /usr/include([/ ]|$);-I/usr/include\1;g')]) + dnl enable-fuzz should disable all other targets if test "x$enable_fuzz" = "xyes"; then AC_MSG_WARN(enable-fuzz will disable all other targets) @@ -1184,11 +1206,22 @@ else dnl sets $bitcoin_enable_qt, $bitcoin_enable_qt_test, $bitcoin_enable_qt_dbus BITCOIN_QT_CONFIGURE([5.5.1]) + + dnl Keep a copy of the original $QT_INCLUDES and use it when invoking qt's moc + QT_INCLUDES_UNSUPPRESSED=$QT_INCLUDES + if test x$suppress_external_warnings != xno ; then + QT_INCLUDES=SUPPRESS_WARNINGS($QT_INCLUDES) + QT_DBUS_INCLUDES=SUPPRESS_WARNINGS($QT_DBUS_INCLUDES) + QT_TEST_INCLUDES=SUPPRESS_WARNINGS($QT_TEST_INCLUDES) + fi fi if test x$enable_wallet != xno; then dnl Check for libdb_cxx only if wallet enabled BITCOIN_FIND_BDB48 + if test x$suppress_external_warnings != xno ; then + BDB_CPPFLAGS=SUPPRESS_WARNINGS($BDB_CPPFLAGS) + fi fi dnl Check for libminiupnpc (optional) @@ -1243,6 +1276,10 @@ AX_BOOST_THREAD dnl Opt-in to boost-process AS_IF([ test x$with_boost_process != x ], [ AX_BOOST_PROCESS ], [ ax_cv_boost_process=no ] ) +if test x$suppress_external_warnings != xno; then + BOOST_CPPFLAGS=SUPPRESS_WARNINGS($BOOST_CPPFLAGS) +fi + dnl Boost 1.56 through 1.62 allow using std::atomic instead of its own atomic dnl counter implementations. In 1.63 and later the std::atomic approach is default. m4_pattern_allow(DBOOST_AC_USE_STD_ATOMIC) dnl otherwise it's treated like a macro |