commit 883dc335e9ea3e0d944ce5cb3c6f140a6cad6ff1 Author: Nick Mathewson nickm@torproject.org Date: Wed Aug 13 12:01:58 2014 -0400
Fix configure script build with autoconf < 2.63
We added some AS_VAR_IF-based checks to detect whether we have managed to compile (but not link) with stack-protector. On autoconf before 2.63, we don't have AS_VAR_IF, so we just have to let the user get a compile error rather than a helpful "find libssp" error.
Fixes bug 12693; bugfix on 0.2.5.2-alpha (commit 21ac292820da578) --- changes/bug12693 | 3 +++ configure.ac | 3 ++- 2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/changes/bug12693 b/changes/bug12693 new file mode 100644 index 0000000..11dfe78 --- /dev/null +++ b/changes/bug12693 @@ -0,0 +1,3 @@ + o Build fixes: + - Allow our configure script to build correctly with autoconf 2.62 + again. Fixes bug 12693; bugfix on 0.2.5.2-alpha. diff --git a/configure.ac b/configure.ac index c37f154..55777e7 100644 --- a/configure.ac +++ b/configure.ac @@ -626,11 +626,12 @@ if test x$enable_gcc_hardening != xno; then TOR_CHECK_CFLAGS(-fstack-protector-all, also_link) AS_VAR_PUSHDEF([can_compile], [tor_cv_cflags_-fstack-protector-all]) AS_VAR_PUSHDEF([can_link], [tor_can_link_-fstack-protector-all]) +m4_ifdef([AS_VAR_IF],[ AS_VAR_IF(can_compile, [yes], AS_VAR_IF(can_link, [yes], [], AC_MSG_ERROR([We tried to build with stack protection; it looks like your compiler supports it but your libc does not provide it. Are you missing libssp? (You can --disable-gcc-hardening to ignore this error.)])) - ) + )]) AS_VAR_POPDEF([can_link]) AS_VAR_POPDEF([can_compile]) TOR_CHECK_CFLAGS(-Wstack-protector)