libv4l: bump version to 1.6.3

---
 package/libv4l/libv4l.hash | 2 +-
 package/libv4l/libv4l.mk   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

index 609cfbc..3371d34 100644
@@ -1,2 +1,2 @@
 # Locally calculated
-sha256 d3d6eb1f0204fb11f3d318bfca35d5f73cc077f88fac7665a47856a16496be7d  v4l-utils-1.6.2.tar.bz2
+sha256 164abf5c1befcd27e8e6ef824a82d4015bdfb5d99ae82daa00e77d895ff9864c  v4l-utils-1.6.3.tar.bz2

index 94c7031..b1c783d 100644
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBV4L_VERSION = 1.6.2
+LIBV4L_VERSION = 1.6.3
 LIBV4L_SOURCE = v4l-utils-$(LIBV4L_VERSION).tar.bz2
 LIBV4L_SITE = http://linuxtv.org/downloads/v4l-utils
 LIBV4L_INSTALL_STAGING = YES

2.1.4

With raspberrypi_defconfig:

libv4l2rds.c:256:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode

    for (int i = 0; i < tuning->station_cnt; i++) {
    ^

libv4l2rds.c:256:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code

From build/libv4l-1.6.2/config.log:

configure:4709: checking for .../host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc option to accept ISO C99
configure:4858: .../host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc -std=gnu99 -c -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
conftest.c:54:9: error: unknown type name 'wchar_t'
const wchar_t *name;

The C99 detection problem seems more related to missing wchar_t type support than the compiler option?

Adding LIBV4L_CONF_ENV = ac_cv_prog_cc_c99='-std=c99' gives a lot of compile errors like:

libv4lconvert.c: In function 'dev_ioctl':
processing/../libv4lsyscall-priv.h:85:10: error: 'SYS_ioctl' undeclared (first use in this function)
syscall(SYS_ioctl, (int)(fd), (unsigned long)(cmd), (void *)(arg))

          ^
libv4lconvert.c:43:9: note: in expansion of macro 'SYS_IOCTL'
  return SYS_IOCTL(fd, cmd, arg);
         ^
processing/../libv4lsyscall-priv.h:85:10: note: each undeclared identifier is reported only once for each function it appears in
  syscall(SYS_ioctl, (int)(fd), (unsigned long)(cmd), (void *)(arg))
          ^
libv4lconvert.c:43:9: note: in expansion of macro 'SYS_IOCTL'
  return SYS_IOCTL(fd, cmd, arg);
         ^

Adding LIBV4L_CONF_ENV = ac_cv_prog_cc_c99='-std=gnu99' solves all configure/compile errors.

---
Would vote for not applying this patch, maybe theres a better solution...

---
 package/libv4l/libv4l.mk | 3 +++
 1 file changed, 3 insertions(+)

index b1c783d..edb2a36 100644
@@ -11,6 +11,9 @@ LIBV4L_INSTALL_STAGING = YES
 LIBV4L_DEPENDENCIES = host-pkgconf
 LIBV4L_CONF_OPTS = --disable-doxygen-doc
 
+# fix uclibc-ng configure/compile
+LIBV4L_CONF_ENV = ac_cv_prog_cc_c99='-std=gnu99'
+
 # v4l-utils components have different licences, see v4l-utils.spec for details
 LIBV4L_LICENSE = GPLv2+ (utilities), LGPLv2.1+ (libraries)
 LIBV4L_LICENSE_FILES = COPYING COPYING.libv4l lib/libv4l1/libv4l1-kernelcode-license.txt

2.1.4

Dear Peter Seiderer,

Both applied, thanks.

Thomas

Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com