From 88c78901503d50d0a62d85c96994ca4d67ab61e0 Mon Sep 17 00:00:00 2001 From: Fabrice Fontaine Date: Fri, 13 Nov 2020 20:50:27 +0100 Subject: [PATCH] Add an option to disable -Werror Allow the user to disable -Werror to avoid the following build failure with gcc 4.8: libtac/lib/magic.c:138:13: error: ignoring return value of 'read', declared with attribute warn_unused_result [-Werror=unused-result] (void) read(rfd, &seed, sizeof(seed)); ^ Fixes: - http://autobuild.buildroot.org/results/5c17226f12eba104d907693ec37fc101cc6d447f Signed-off-by: Fabrice Fontaine --- Makefile.am | 6 +++++- configure.ac | 3 +++ 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/Makefile.am b/Makefile.am index 0be3cdb..4a137e9 100644 --- a/Makefile.am +++ b/Makefile.am @@ -8,7 +8,11 @@ ACLOCAL_AMFLAGS = -I config AUTOMAKE_OPTIONS = subdir-objects -AM_CFLAGS = -Wall -Wextra -Werror +AM_CFLAGS = -Wall -Wextra + +if ENABLE_WERROR +AM_CFLAGS += -Werror +endif if TACC bin_PROGRAMS = tacc diff --git a/configure.ac b/configure.ac index d0c5eba..dd8a966 100644 --- a/configure.ac +++ b/configure.ac @@ -100,6 +100,9 @@ AC_SUBST(pamdir) AC_ARG_ENABLE(doc, AS_HELP_STRING([--disable-doc], [do not build docs])) AM_CONDITIONAL(DOC, test "x$enable_doc" != "xno") +AC_ARG_ENABLE(werror, AS_HELP_STRING([--disable-werror], [do not build with -Werror])) +AM_CONDITIONAL(ENABLE_WERROR, test "x$enable_werror" != "xno") + dnl -------------------------------------------------------------------- dnl Switch for run-time debugging AC_ARG_ENABLE(runtime-debugging, [AS_HELP_STRING([--enable-runtime-debugging], -- 2.28.0