Move compiler/linker flags from profiles to aol.properties

This is to make cross-compiling for i386 on amd64 easier, by adding
-m32/64 or -arch flags where appropriate.

This commit also adds a gcc linker on Linux and macOS, replacing the
default g++ linker. It's roughly equivalent, but means the shared
library has fewer dependencies (e.g. it doesn't link against libstdc++).

aol.properties

@@ -0,0 +1,103 @@
+# Linux i386
+i386.Linux.linker=gcc
+
+i386.Linux.gcc.c.compiler=gcc
+i386.Linux.gcc.c.defines=
+i386.Linux.gcc.c.options=-m32 -Wall -Wextra -pedantic -Wno-int-to-void-pointer-cast -Wno-unused-parameter
+i386.Linux.gcc.c.includes=**/*.c
+i386.Linux.gcc.c.excludes=
+
+i386.Linux.gcc.java.include=include;include/linux
+i386.Linux.gcc.java.runtimeDirectory=jre/lib/i386/client
+
+i386.Linux.gcc.linker.options=-m32 -fPIC
+
+i386.Linux.gcc.lib.prefix=lib
+i386.Linux.gcc.shared.prefix=lib
+i386.Linux.gcc.static.extension=a
+i386.Linux.gcc.shared.extension=so*
+i386.Linux.gcc.plugin.extension=so
+i386.Linux.gcc.jni.extension=so
+i386.Linux.gcc.executable.extension=
+
+# Linux amd64
+amd64.Linux.linker=gcc
+
+amd64.Linux.gcc.c.compiler=gcc
+amd64.Linux.gcc.c.defines=
+amd64.Linux.gcc.c.options=-m64 -Wall -Wextra -pedantic -Wno-int-to-void-pointer-cast -Wno-unused-parameter
+amd64.Linux.gcc.c.includes=**/*.c
+amd64.Linux.gcc.c.excludes=
+
+amd64.Linux.gcc.java.include=include;include/linux
+amd64.Linux.gcc.java.runtimeDirectory=jre/lib/amd64/server
+
+amd64.Linux.gcc.linker.options=-m64 -fPIC
+
+amd64.Linux.gcc.lib.prefix=lib
+amd64.Linux.gcc.shared.prefix=lib
+amd64.Linux.gcc.static.extension=a
+amd64.Linux.gcc.shared.extension=so*
+amd64.Linux.gcc.plugin.extension=so
+amd64.Linux.gcc.jni.extension=so
+amd64.Linux.gcc.executable.extension=
+
+# macOS i386
+i386.MacOSX.linker=gcc
+
+i386.MacOSX.gcc.c.compiler=gcc
+i386.MacOSX.gcc.c.defines=
+i386.MacOSX.gcc.c.options=-arch i386 -x objective-c -Wall -Wextra -pedantic -Wno-int-to-void-pointer-cast -Wno-unused-parameter
+i386.MacOSX.gcc.c.includes=**/*.c
+i386.MacOSX.gcc.c.excludes=
+
+i386.MacOSX.gcc.java.include=include;include/darwin
+i386.MacOSX.gcc.java.runtimeDirectory=IGNORED
+
+i386.MacOSX.gcc.linker.options=-arch i386
+
+i386.MacOSX.gcc.lib.prefix=lib
+i386.MacOSX.gcc.shared.prefix=lib
+i386.MacOSX.gcc.static.extension=a
+i386.MacOSX.gcc.shared.extension=dylib
+i386.MacOSX.gcc.plugin.extension=bundle
+i386.MacOSX.gcc.jni.extension=jnilib
+i386.MacOSX.gcc.executable.extension=
+
+# macOS amd64
+x86_64.MacOSX.linker=gcc
+
+x86_64.MacOSX.gcc.c.compiler=gcc
+x86_64.MacOSX.gcc.c.defines=
+x86_64.MacOSX.gcc.c.options=-arch x86_64 -x objective-c -Wall -Wextra -pedantic -Wno-int-to-void-pointer-cast -Wno-unused-parameter
+x86_64.MacOSX.gcc.c.includes=**/*.c
+x86_64.MacOSX.gcc.c.excludes=
+
+x86_64.MacOSX.gcc.java.include=include;include/darwin
+x86_64.MacOSX.gcc.java.runtimeDirectory=IGNORED
+
+x86_64.MacOSX.gcc.linker.options=-arch x86_64
+
+x86_64.MacOSX.gcc.lib.prefix=lib
+x86_64.MacOSX.gcc.shared.prefix=lib
+x86_64.MacOSX.gcc.static.extension=a
+x86_64.MacOSX.gcc.shared.extension=dylib
+x86_64.MacOSX.gcc.plugin.extension=bundle
+x86_64.MacOSX.gcc.jni.extension=jnilib
+x86_64.MacOSX.gcc.executable.extension=
+
+# Windows i386
+x86.Windows.msvc.c.defines=WIN32_LEAN_AND_MEAN
+# C1400: unused parameter
+# C4201: non-standard extension: nameless struct/union (in jawt_md.h)
+# C4204: non-standard extension: non-constant aggregate initializer
+# C4255: no function prototype given (in winuser.h)
+# C4305: type cast: truncation from <type> to <type> (only on 32-bit machines)
+# C4668: undefined processor macro (in vcruntime.h and winioctl.h)
+# C4820: padding after data member (in jawt.h and jni.h)
+# C5045: compiler will insert Spectre mitigation
+x86.Windows.msvc.c.options=/Wall /wd4100 /wd4201 /wd4204 /wd4255 /wd4305 /wd4668 /wd4820 /wd5045
+
+# Windows amd64
+amd64.Windows.msvc.c.defines=WIN32_LEAN_AND_MEAN
+amd64.Windows.msvc.c.options=/Wall /wd4100 /wd4201 /wd4204 /wd4255 /wd4305 /wd4668 /wd4820 /wd5045