Neels Hofmeyr has submitted this change and it was merged.
Change subject: configure: add --enable-werror
......................................................................
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: Ifcde5a110cbed0eaa250dd946927e3b0f4f9bd13
---
M configure.ac
1 file changed, 21 insertions(+), 0 deletions(-)
Approvals:
Neels Hofmeyr: Looks good to me, approved
Jenkins Builder: Verified
diff --git a/configure.ac b/configure.ac
index 1193e46..b9073e9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -151,6 +151,27 @@
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 $WERROR_FLAGS"
+fi
+
+AC_MSG_RESULT([CFLAGS="$CFLAGS"])
+AC_MSG_RESULT([CPPFLAGS="$CPPFLAGS"])
+
AC_CONFIG_FILES([Makefile
doc/Makefile
doc/examples/Makefile
--
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Gerrit-MessageType: merged
Gerrit-Change-Id: Ifcde5a110cbed0eaa250dd946927e3b0f4f9bd13
Gerrit-PatchSet: 1
Gerrit-Project: osmo-ggsn
Gerrit-Branch: master
Gerrit-Owner: Neels Hofmeyr <nhofm...@sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: Neels Hofmeyr <nhofm...@sysmocom.de>
