From 5b8889ce6b4661a14e79c6103fdd0eaf57a872b0 Mon Sep 17 00:00:00 2001 From: Neels Hofmeyr Date: Mon, 5 Mar 2018 20:42:31 +0100 Subject: 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: I5b37602a117350159183fb53ac330294b94f4195 --- configure.ac | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'configure.ac') diff --git a/configure.ac b/configure.ac index db8a97d3..b3758068 100644 --- a/configure.ac +++ b/configure.ac @@ -43,6 +43,24 @@ 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 $WERROR_FLAGS" +fi + dnl checks for libraries PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 0.10.0) PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 0.10.0) @@ -185,6 +203,9 @@ if test "$enable_litecell15" = "yes"; then CPPFLAGS=$oldCPPFLAGS fi +AC_MSG_RESULT([CFLAGS="$CFLAGS"]) +AC_MSG_RESULT([CPPFLAGS="$CPPFLAGS"]) + AM_CONFIG_HEADER(btsconfig.h) AC_OUTPUT( -- cgit v1.2.3