vlc: remove dependency on C library

vlc uses <spawn.h> which was not available in old uClibc
versions. However, since we are removing support for uClibc 0.9.33, we
can get rid of such dependency. In addition, <spawn.h> is provided by
musl, and therefore VLC can be enabled with this C library.

Consequently, this commit completely removes any C library dependency for
the vlc package.  The only special case that needs to be handled is the
Blackfin external toolchain from Analog Devices, which still uses an old
uClibc version that doesn't provide <spawn.h>, but as vlc uses fork() we add
a depends on BR2_USE_MMU (which covers the blackfin toolchain).

[Peter: add BR2_USE_MMU dependency]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Romain Naour <romain.naour@gmail.com>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

diff --git a/package/vlc/Config.in b/package/vlc/Config.in
index 03e85c3fcaf0a0f721e6132980abc9791e8560d8..166e7d256a8f4c7961a9d4432d169992b81bb8cd 100644 (file)
--- a/package/vlc/Config.in
+++ b/package/vlc/Config.in
@@ -5,7 +5,7 @@ endif
 
 config BR2_PACKAGE_VLC
        bool "vlc"
-       depends on (BR2_UCLIBC_VERSION_SNAPSHOT || BR2_UCLIBC_VERSION_NG || BR2_TOOLCHAIN_USES_GLIBC) # spawn.h
+       depends on BR2_USE_MMU # fork()
        depends on BR2_INSTALL_LIBSTDCPP
        depends on !BR2_STATIC_LIBS
        depends on BR2_USE_WCHAR
@@ -32,7 +32,7 @@ config BR2_PACKAGE_VLC_OPENCV3_BACKEND
        select BR2_PACKAGE_OPENCV3_LIB_IMGPROC
        select BR2_PACKAGE_OPENCV3_LIB_OBJDETECT
 
-comment "vlc needs a uclibc snapshot, uclibc-ng or (e)glibc toolchain w/ C++, dynamic library, wchar, threads, headers >= 3.7"
-       depends on !(BR2_UCLIBC_VERSION_SNAPSHOT || BR2_UCLIBC_VERSION_NG || BR2_TOOLCHAIN_USES_GLIBC) \
-               || !BR2_INSTALL_LIBSTDCPP || BR2_STATIC_LIBS || !BR2_USE_WCHAR \
+comment "vlc needs a toolchain w/ C++, dynamic library, wchar, threads, headers >= 3.7"
+       depends on BR2_USE_MMU
+       depends on !BR2_INSTALL_LIBSTDCPP || BR2_STATIC_LIBS || !BR2_USE_WCHAR \
                || !BR2_TOOLCHAIN_HAS_THREADS || !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_7