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| author | Neels Hofmeyr <neels@hofmeyr.de> | 2018-03-05 20:08:43 +0100 |
|---|---|---|
| committer | Neels Hofmeyr <nhofmeyr@sysmocom.de> | 2018-03-13 00:01:17 +0000 |
| commit | 1bb555439dba1c0e9582120523a7260832197c88 (patch) | |
| tree | 156efd365594a7f1fae13a51d945f2d1fcb13d78 /configure.ac | |
| parent | 34b59acc831e197978952dec7f503a20e1cf722f (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: I8cf0f135131c348d0b43f25b1d444af5827f148d
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index e95a16dd8..c74402a1b 100644 --- a/configure.ac +++ b/configure.ac @@ -81,6 +81,24 @@ 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 $WERROR_FLAGS" +fi + # The following test is taken from WebKit's webkit.m4 saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -fvisibility=hidden " @@ -140,6 +158,9 @@ AC_MSG_CHECKING([whether to enable VTY/CTRL tests]) AC_MSG_RESULT([$enable_ext_tests]) AM_CONDITIONAL(ENABLE_EXT_TESTS, test "x$enable_ext_tests" = "xyes") +AC_MSG_RESULT([CFLAGS="$CFLAGS"]) +AC_MSG_RESULT([CPPFLAGS="$CPPFLAGS"]) + dnl Generate the output AM_CONFIG_HEADER(bscconfig.h) |