Changeset 87afe92

Timestamp:

Feb 13, 2009, 12:31:34 AM (15 years ago)

Author:

Sam Hartman <hartmans@mit.edu>

Branches:

master, debian, release-1.10, release-1.4, release-1.5, release-1.6, release-1.7, release-1.8, release-1.9

Children:

9d12aa5, 3b80321

Parents:

eef5b52

git-author:

Sam Hartman <hartmans@mit.edu> (02/12/09 23:22:12)

git-committer:

Sam Hartman <hartmans@mit.edu> (02/13/09 00:31:34)

Message:

Support -fstack-protector

Gcc and some Linux environments support a -fstack-protector option to
guard against buffer overflows.  Sometimes this requires linking
against -lssp.  When this option works, use it in the build.  Users
may set PROTECT_CFLAGS to override.

File:

• configure.ac (modified) (1 diff)

configure.ac

@@ -45 +45 @@
         AC_MSG_RESULT(no)
 fi
+PROTECT_CFLAGS=${PROTECT_CFLAGS-"-fstack-protector"}
+SAVE_CFLAGS=$CFLAGS
+CFLAGS="$CFLAGS $PROTECT_CFLAGS"
+AC_MSG_CHECKING(whether protection cflags work)
+AC_COMPILE_IFELSE(int i;,
+    [AC_MSG_RESULT(yes)],
+    [AC_MSG_RESULT(no)
+    CFLAGS=$SAVE_CFLAGS])
 
+
+AC_CHECK_LIB(ssp, __stack_chk_guard)
 AC_CHECK_LIB(ncursesw, initscr,, AC_MSG_ERROR(No libncursesw found.))
 AC_CHECK_LIB(com_err, com_err)