my $ndk = $ENV{ANDROID_NDK};
die "\$ANDROID_NDK is not defined" if (!$ndk);
+ if (!-d "$ndk/platforms" && !-f "$ndk/AndroidVersion.txt") {
+ # $ndk/platforms is traditional "all-inclusive" NDK, while
+ # $ndk/AndroidVersion.txt is so-called standalone toolchain
+ # tailored for specific target down to API level.
+ die "\$ANDROID_NDK=$ndk is invalid";
+ }
$ndk = canonpath($ndk);
- die "\$ANDROID_NDK=$ndk is invalid" if (!-d "$ndk/platforms");
my $ndkver = undef;
close $fh;
}
- my $sysroot;
+ my ($sysroot, $api, $arch);
+
+ $config{target} =~ m|[^-]+-([^-]+)$|; # split on dash
+ $arch = $1;
- if (!($sysroot = $ENV{CROSS_SYSROOT})) {
- my $api = "*";
+ if ($sysroot = $ENV{CROSS_SYSROOT}) {
+ $sysroot =~ m|/android-([0-9]+)/arch-(\w+)/?$|;
+ ($api, $arch) = ($1, $2);
+ } elsif (-f "$ndk/AndroidVersion.txt") {
+ $sysroot = "$ndk/sysroot";
+ } else {
+ $api = "*";
# see if user passed -D__ANDROID_API__=N
foreach (@{$useradd{CPPDEFINES}}, @{$user{CPPFLAGS}}) {
} glob("$ndk/platforms/android-$api");
die "no $ndk/platforms/android-$api" if ($#platforms < 0);
- $config{target} =~ m|[^-]+-([^-]+)$|; # split on dash
- $sysroot = "@platforms[$#platforms]/arch-$1";
+ $sysroot = "@platforms[$#platforms]/arch-$arch";
+ $sysroot =~ m|/android-([0-9]+)/arch-$arch|;
+ $api = $1;
}
die "no sysroot=$sysroot" if (!-d $sysroot);
- $sysroot =~ m|/android-([0-9]+)/arch-(\w+)/?$|;
- my ($api, $arch) = ($1, $2);
-
my $triarch = $triplet{$arch};
my $cflags;
my $cppflags;
- # see if there is NDK clang on $PATH
+ # see if there is NDK clang on $PATH, "universal" or "standalone"
if (which("clang") =~ m|^$ndk/.*/prebuilt/([^/]+)/|) {
my $host=$1;
# harmonize with gcc default
. "/$tritools-4.9/prebuilt/$host";
$user{CC} = "clang" if ($user{CC} !~ m|clang|);
$user{CROSS_COMPILE} = undef;
+ if (which("llvm-ar") =~ m|^$ndk/.*/prebuilt/([^/]+)/|) {
+ $user{AR} = "llvm-ar";
+ $user{ARFLAGS} = [ "rs" ];
+ $user{RANLIB} = ":";
+ }
+ } elsif (-f "$ndk/AndroidVersion.txt") { #"standalone toolchain"
+ my $cc = $user{CC} // "clang";
+ # One can probably argue that both clang and gcc should be
+ # probed, but support for "standalone toolchain" was added
+ # *after* announcement that gcc is being phased out, so
+ # favouring clang is considered adequate. Those who insist
+ # have option to enforce test for gcc with CC=gcc.
+ if (which("$triarch-$cc") !~ m|^$ndk|) {
+ die "no NDK $triarch-$cc on \$PATH";
+ }
+ $user{CC} = $cc;
+ $user{CROSS_COMPILE} = "$triarch-";
} elsif ($user{CC} eq "clang") {
die "no NDK clang on \$PATH";
} else {