Hi John,
On 29 March 2016 at 16:39, Bridgman, John John.Bridgman@amd.com wrote:
The hsakmt code requires c99 support, however gcc 4.x defaults to c89 while gcc 5 defaults to c11. Adding this macro provides c99 support on older gcc while not forcing gcc 5 back from c11 to c99.
Signed-off-by: John Bridgman john.bridgman@amd.com
configure.ac | 1 + 1 file changed, 1 insertion(+)
diff --git a/configure.ac b/configure.ac index b8e9bea..8f32cbb 100644 --- a/configure.ac +++ b/configure.ac @@ -66,6 +66,7 @@ AC_CANONICAL_HOST AC_PROG_AWK test_CFLAGS=${CFLAGS+set} # We may override autoconf default CFLAGS. AC_PROG_CC +AC_PROG_CC_STDC
Some versions of autoconf have AC_PROG_CC_STDC as obsolete, while others will silently fall back to C89 (according to the autoconf ML).
I've used AC_PROG_CC_C99 and $ac_cv_prog_cc_c99 for libdrm [1]. Did not have old enough compiler to test it against though :-\
-Emil
[1] https://cgit.freedesktop.org/mesa/drm/commit/?id=e59f00fb43c2b83bdadb17fa35c...