site: Cache config vars for ccache

ccache's configure tries to do a runtime test to
determine hw_cv_func_snprintf_c99 and hw_cv_func_vsnprintf_c99
which wont work in OE.

c99 versions of these functions are provided on all
supported libc implementations in OE-Core

(From OE-Core rev: dbf2ac39913429a0d2a8ce129cebe4469d6a2c22)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/meta/site/common-linux b/meta/site/common-linux
index 21fcac1c36..0a752a40eb 100644
--- a/meta/site/common-linux
+++ b/meta/site/common-linux
@@ -42,6 +42,10 @@ bash_cv_job_control_missing=${bash_cv_job_control_missing=present}
 bash_cv_sys_named_pipes=${bash_cv_sys_named_pipes=present}
 bash_cv_unusable_rtsigs=${bash_cv_unusable_rtsigs=no}
 
+# ccache
+hw_cv_func_snprintf_c99=${hw_cv_func_snprintf_c99=yes}
+hw_cv_func_vsnprintf_c99=${hw_cv_func_vsnprintf_c99=yes}
+
 # coreutils
 gl_cv_func_fstatat_zero_flag=${gl_cv_func_fstatat_zero_flag=yes}