Android build fixes.

Reviewed-by: NRich Salz <rsalz@openssl.org>

Configurations/10-main.conf

@@ -896,17 +896,14 @@ sub vms_info {
         # Special note about unconditional -fPIC and -pie. The underlying
         # reason is that Lollipop refuses to run non-PIE. But what about
         # older systems and NDKs? -fPIC was never problem, so the only
-        # concern if -pie. Older toolchains, e.g. r4, appear to handle it
+        # concern is -pie. Older toolchains, e.g. r4, appear to handle it
         # and binaries turn mostly functional. "Mostly" means that oldest
         # Androids, such as Froyo, fail to handle executable, but newer
         # systems are perfectly capable of executing binaries targeting
         # Froyo. Keep in mind that in the nutshell Android builds are
         # about JNI, i.e. shared libraries, not applications.
-        cflags           => picker(default => "-mandroid -fPIC --sysroot=\$(CROSS_SYSROOT) -Wa,--noexecstack -Wall",
-                                   debug   => "-O0 -g",
-                                   release => "-O3"),
-        lflags           => "-pie",
-        shared_cflag     => "",
+        cflags           => add(picker(default => "-mandroid -fPIC --sysroot=\$(CROSS_SYSROOT) -Wa,--noexecstack")),
+        bin_cflags       => "-pie",
     },
     "android-x86" => {
         inherit_from     => [ "android", asm("x86_asm") ],
@@ -945,11 +942,8 @@ sub vms_info {
 
     "android64" => {
         inherit_from     => [ "linux-generic64" ],
-        cflags           => picker(default => "-mandroid -fPIC --sysroot=\$(CROSS_SYSROOT) -Wa,--noexecstack -Wall",
-                                   debug   => "-O0 -g",
-                                   release => "-O3"),
-        lflags           => "-pie",
-        shared_cflag     => "",
+        cflags           => add(picker(default => "-mandroid -fPIC --sysroot=\$(CROSS_SYSROOT) -Wa,--noexecstack")),
+        bin_cflags       => "-pie",
     },
     "android64-aarch64" => {
         inherit_from     => [ "android64", asm("aarch64_asm") ],

Configurations/unix-Makefile.tmpl

@@ -172,7 +172,7 @@ LIB_LDFLAGS={- $target{shared_ldflag}." ".$config{shared_ldflag}
 RCFLAGS={- $target{shared_rcflag} -}
 DSO_CFLAGS={- $target{shared_cflag} || "" -}
 DSO_LDFLAGS=$(LIB_LDFLAGS)
-BIN_CFLAGS={- "" -}
+BIN_CFLAGS={- $target{bin_cflags} -}
 
 PERL={- $config{perl} -}
 

crypto/async/arch/async_posix.h

@@ -53,7 +53,7 @@
 #define OPENSSL_ASYNC_ARCH_ASYNC_POSIX_H
 #include <openssl/e_os2.h>
 
-#if (defined(OPENSSL_SYS_UNIX) || defined(OPENSSL_SYS_CYGWIN)) && defined(OPENSSL_THREADS) && !defined(OPENSSL_NO_ASYNC)
+#if (defined(OPENSSL_SYS_UNIX) || defined(OPENSSL_SYS_CYGWIN)) && defined(OPENSSL_THREADS) && !defined(OPENSSL_NO_ASYNC) && !defined(__ANDROID__)
 
 # include <unistd.h>