From: Antonio Quartulli Date: Sun, 10 Nov 2019 10:03:23 +0000 (+0100) Subject: add -Wno-stringop-truncation to CFLAGS on linux X-Git-Tag: v2.5_beta1~244 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=46d096074fd74e0d6c1d4756429215d22f2b3441;p=thirdparty%2Fopenvpn.git add -Wno-stringop-truncation to CFLAGS on linux GCC>=8 supports truncation checking, however the logic is somewhat fragile when it comes to evaluating strncpy(). In buffer.h we have implemented a wrapper called strncpynt() which ensures we always do the right hting in the code and reduce the chance of having bugs. This said, it seems that the gcc logic is not able to always understand if we are doing the right thing and throws a false positive. Toa void the noise, disable truncation checking on Linux by default. Signed-off-by: Antonio Quartulli Acked-by: Gert Doering Message-Id: <20191110100323.13206-1-a@unstable.cc> URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg19085.html Signed-off-by: Gert Doering --- diff --git a/configure.ac b/configure.ac index 4159e4509..807804e5f 100644 --- a/configure.ac +++ b/configure.ac @@ -1283,6 +1283,7 @@ AC_DEFUN([ACL_CHECK_ADD_COMPILE_FLAGS], [ [AC_MSG_RESULT([no]); CFLAGS="$old_cflags"])] ) +ACL_CHECK_ADD_COMPILE_FLAGS([-Wno-stringop-truncation]) ACL_CHECK_ADD_COMPILE_FLAGS([-Wno-unused-function]) ACL_CHECK_ADD_COMPILE_FLAGS([-Wno-unused-parameter]) ACL_CHECK_ADD_COMPILE_FLAGS([-Wall])