From 73d0da2dd66295e6c5503181a34bb96046e7250d Mon Sep 17 00:00:00 2001 From: Fabrice Fontaine Date: Sat, 3 Apr 2021 14:36:13 +0200 Subject: [PATCH] package/python-rpi-ws281w: fix build with gcc 4.8 Fix build failure with gcc 4.8 which is raised since bump to version 4.2.6 in commit f21d46bf99e2c3a86a86586bc3e82b214104cd30 Fixes: - http://autobuild.buildroot.org/results/3d037922484bfc45d0f985f87b38f20c5a4ab064 Signed-off-by: Fabrice Fontaine Signed-off-by: Arnout Vandecappelle (Essensium/Mind) --- ...0001-ws2811.c-fix-build-with-gcc-4.8.patch | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 package/python-rpi-ws281x/0001-ws2811.c-fix-build-with-gcc-4.8.patch diff --git a/package/python-rpi-ws281x/0001-ws2811.c-fix-build-with-gcc-4.8.patch b/package/python-rpi-ws281x/0001-ws2811.c-fix-build-with-gcc-4.8.patch new file mode 100644 index 0000000000..9b534ac67a --- /dev/null +++ b/package/python-rpi-ws281x/0001-ws2811.c-fix-build-with-gcc-4.8.patch @@ -0,0 +1,51 @@ +From 8faa5c2fb2b04b4fb062255aa807abafc50bff66 Mon Sep 17 00:00:00 2001 +From: Fabrice Fontaine +Date: Sat, 3 Apr 2021 10:27:20 +0200 +Subject: [PATCH] ws2811.c: fix build with gcc 4.8 + +Fix the following build failure with gcc 4.8 (which has been added by +commit 391f6e856d28510bd9ae4efd3a166da7f73613ab): + +lib/ws2811.c: In function 'ws2811_set_custom_gamma_factor': +lib/ws2811.c:1289:5: error: 'for' loop initial declarations are only allowed in C99 mode + for (int chan = 0; chan < RPI_PWM_CHANNELS; chan++) + ^ +lib/ws2811.c:1289:5: note: use option -std=c99 or -std=gnu99 to compile your code +lib/ws2811.c:1295:11: error: 'for' loop initial declarations are only allowed in C99 mode + for(int counter = 0; counter < 256; counter++) + ^ + +Fixes: + - http://autobuild.buildroot.org/results/3d037922484bfc45d0f985f87b38f20c5a4ab064 + +Signed-off-by: Fabrice Fontaine +[Retrieved from: +https://github.com/jgarff/rpi_ws281x/commit/0814bae544f0184ab1600bc2660486874eef5970] +--- + ws2811.c | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +diff --git a/ws2811.c b/ws2811.c +index f5cdebd..6482796 100644 +--- a/lib/ws2811.c ++++ b/lib/ws2811.c +@@ -1286,13 +1286,14 @@ const char * ws2811_get_return_t_str(const ws2811_return_t state) + + void ws2811_set_custom_gamma_factor(ws2811_t *ws2811, double gamma_factor) + { +- for (int chan = 0; chan < RPI_PWM_CHANNELS; chan++) ++ int chan, counter; ++ for (chan = 0; chan < RPI_PWM_CHANNELS; chan++) + { + ws2811_channel_t *channel = &ws2811->channel[chan]; + + if (channel->gamma) + { +- for(int counter = 0; counter < 256; counter++) ++ for(counter = 0; counter < 256; counter++) + { + + channel->gamma[counter] = (gamma_factor > 0)? (int)(pow((float)counter / (float)255.00, gamma_factor) * 255.00 + 0.5) : counter; +-- +2.30.2 + -- 2.30.2