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Add (fake) Android cmake building

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There is a mode to build with a real Android NDK that requires setting
up cmake to build with the NDK and so.
For quick&dirty compile tests that do not actually use the Android NDK
on Linux, -DFAKE_ANDROID on Linux can be used to compile a binary using
TARGET_ANDROID.

Change-Id: If6afa1108f9234f98afdbe0de7b7320403871772
Signed-off-by: Arne Schwabe <arne@rfc2549.org>
Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20250214125238.17558-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg30885.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>
This commit is contained in:
Arne Schwabe 2025-02-14 13:52:38 +01:00 committed by Gert Doering
parent 666e440be8
commit 6e16dc6216
2 changed files with 12 additions and 1 deletions
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10
CMakeLists.txt
View File

@ -39,6 +39,7 @@ option(ENABLE_LZ4 "BUILD with lz4" ON)
option(ENABLE_LZO "BUILD with lzo" ON)
option(ENABLE_PKCS11 "BUILD with pkcs11-helper" ON)
option(USE_WERROR "Treat compiler warnings as errors (-Werror)" ON)
option(FAKE_ANDROID "Target Android but do not use actual cross compile/Android cmake to build for simple compile checks on Linux")
set(PLUGIN_DIR /usr/local/lib/openvpn/plugins CACHE FILEPATH "Location of the plugin directory")
@ -122,7 +123,14 @@ set(OPENVPN_VERSION_RESOURCE ${PRODUCT_VERSION_RESOURCE})
set(CMAKE_C_STANDARD 11)
# Set the various defines for config.h.cmake.in
if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
if (${CMAKE_SYSTEM_NAME} STREQUAL "Android" OR ${FAKE_ANDROID})
set(TARGET_ANDROID YES)
set(ENABLE_ASYNC_PUSH YES)
set(ENABLE_SITNL YES)
set(HAVE_LINUX_TYPES_H 1)
# Wacky workaround as OpenSSL package detection is otherwise broken (https://stackoverflow.com/questions/45958214/android-cmake-could-not-find-openssl)
list(APPEND CMAKE_FIND_ROOT_PATH ${OPENSSL_ROOT_DIR})
elseif (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
set(TARGET_LINUX YES)
set(ENABLE_ASYNC_PUSH YES)
set(ENABLE_LINUXDCO YES)

3
config.h.cmake.in
View File

@ -432,6 +432,9 @@ don't. */
/* Are we running WIN32? */
#cmakedefine TARGET_WIN32
/* Are we targeting Android? */
#cmakedefine TARGET_ANDROID
#define TARGET_ALIAS "@CMAKE_SYSTEM_NAME@"
/* Enable GNU extensions on systems that have them. */