[FFmpeg-cvslog] configure: detect nvcc without sm_30 support

[Timo Rothenpieler]

ffmpeg | branch: master | Timo Rothenpieler <timo at rothenpieler.org> | Sun Jun  6 21:31:00 2021 +0200| [c67f354be8610eefb9a2b195f6dc4d6da637b687] | committer: Timo Rothenpieler

configure: detect nvcc without sm_30 support

Signed-off-by: Timo Rothenpieler <timo at rothenpieler.org>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c67f354be8610eefb9a2b195f6dc4d6da637b687
---

 configure | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 82367fd30d..6bfd98b384 100755
--- a/configure
+++ b/configure
@@ -4388,8 +4388,16 @@ else
     NVCC_C=""
 fi
 
+set_default nvcc
+
+if enabled cuda_nvcc; then
+    if $nvcc $nvccflags_default 2>&1 | grep -qi unsupported; then
+        nvccflags_default="-gencode arch=compute_60,code=sm_60 -O2"
+    fi
+fi
+
 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
-    target_exec x86asmexe nvcc
+    target_exec x86asmexe
 enabled cross_compile || host_cc_default=$cc
 set_default host_cc