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| author | Neels Hofmeyr <neels@hofmeyr.de> | 2018-03-05 20:37:13 +0100 |
|---|---|---|
| committer | Neels Hofmeyr <neels@hofmeyr.de> | 2018-03-05 20:39:19 +0100 |
| commit | bb83e6f7eb7fa3910586a182ed93d69a850e3e21 (patch) | |
| tree | 76f00105e837ec65e4213d102ca87e320c7de647 /configure.ac | |
| parent | 61460fd6431d6ea62752d74ad05425f132d7abbe (diff) | |
configure: add --enable-werror
Provide a sane means of adding the -Werror compiler flag.
Currently, some of our jenkins.sh add -Werror by passing 'CFLAGS="-Werror"',
but that actually *overwrites* all the other CFLAGS we might want to have set.
Maintain these exceptions from -Werror:
a) deprecation (allow upstream to mark deprecation without breaking builds);
b) "#warning" pragmas (allow to remind ourselves of errors without breaking
builds)
As a last configure step before generating the output files, print the complete
CFLAGS and CPPFLAGS by means of AC_MSG_RESULT.
Change-Id: I20d5f18cf05c9e277d914ada259a95187b73fe39
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 0e07330..ce4bf39 100644 --- a/configure.ac +++ b/configure.ac @@ -78,6 +78,24 @@ then CPPFLAGS="$CPPFLAGS -fsanitize=address -fsanitize=undefined" fi +AC_ARG_ENABLE(werror, + [AS_HELP_STRING( + [--enable-werror], + [Turn all compiler warnings into errors, with exceptions: + a) deprecation (allow upstream to mark deprecation without breaking builds); + b) "#warning" pragmas (allow to remind ourselves of errors without breaking builds) + ] + )], + [werror=$enableval], [werror="no"]) +if test x"$werror" = x"yes" +then + WERROR_FLAGS="-Werror" + WERROR_FLAGS+=" -Wno-error=deprecated -Wno-error=deprecated-declarations" + WERROR_FLAGS+=" -Wno-error=cpp" # "#warning" + CFLAGS="$CFLAGS $WERROR_FLAGS" + CPPFLAGS="$CPPFLAGS $WERROR_FLAGS" +fi + _cflags_save=$CFLAGS CFLAGS="$CFLAGS $ORTP_CFLAGS" AC_COMPILE_IFELSE( @@ -105,6 +123,8 @@ AC_COMPILE_IFELSE( [rtp_session_signal_connect requires ulong parameter])]) CFLAGS=$_cflags_save +AC_MSG_RESULT([CFLAGS="$CFLAGS"]) +AC_MSG_RESULT([CPPFLAGS="$CPPFLAGS"]) AC_OUTPUT( libosmoabis.pc |