|
|
- Backported from:
-
- https://gitlab.com/gpsd/gpsd/-/commit/28fb46ac70059d3b0eb64041c35ef83027bd8506
- https://gitlab.com/gpsd/gpsd/-/commit/c5ed9736d859fed0682e60e899e9617ac67da11b
-
- From c2b4d3fb9a9e011bdc2fb891b78c6ce13f0c7101 Mon Sep 17 00:00:00 2001
- From: "Sergey V. Lobanov" <sergey@lobanov.in>
- Date: Mon, 24 Jan 2022 16:01:54 -0800
- Subject: [PATCH] SConscript: Add target_platform config option.
-
- This patch adds an ability to redefine target platform using config
- optiont target_platform=<platform> to support cross-platform compilation.
-
- This allows cross cimpileg for openWRT (target_platform=linux) on
- osX (sys.platform() == darwin)
-
- Signed-off-by: Gary E. Miller <gem@rellim.com>
- ---
- SConscript | 41 +++++++++++++++++++++++++++--------------
- 1 file changed, 27 insertions(+), 14 deletions(-)
-
- --- a/SConscript
- +++ b/SConscript
- @@ -52,6 +52,7 @@ EnsurePythonVersion(2, 6)
- # e.g. "scons-3" on CentOS 8.
- scons_executable_name = os.path.basename(sys.argv[0]) or 'scons'
-
- +
- # Have scons rebuild an existing target when the source(s) MD5 changes
- # Do not use time to prevent rebuilding when sources, like gpsd_config.h,
- # are rebuilt, but with no changes.
- @@ -351,6 +352,7 @@ boolopts = (
- ("gpsdclients", True, "gspd client programs"),
- ("gpsd", True, "gpsd itself"),
- ("implicit_link", imloads, "implicit linkage is supported in shared libs"),
- + # FIXME: should check for Pi, not for "linux"
- ("magic_hat", sys.platform.startswith('linux'),
- "special Linux PPS hack for Raspberry Pi et al"),
- ("minimal", False, "turn off every option not set on the command line"),
- @@ -410,6 +412,10 @@ nonboolopts = (
- "Prefix to the binary tools to use (gcc, ld, etc.)\n"
- "For cross-compiling, or building with multiple local toolchains.\n"
- ),
- + # If build and target platform are different, then redefining target
- + # platform might be necessary to use better build flags
- + ("target_platform", sys.platform,
- + "target platform for cross-compiling (linux, darwin, etc.)"),
- ("target_python", def_target_python, "target Python version as command"),
- )
-
- @@ -878,13 +884,16 @@ have_valgrind = False
- # per SCons 4.0.1 doc: Section 23.9. Not Configuring When Cleaning Targets
- if not cleaning and not helping:
- # OS X aliases gcc to clang
- + if (sys.platform != config.env['target_platform']):
- + announce("Target system is: %s" % config.env['target_platform'])
- +
- announce("cc is %s, version %s" % (env['CC'], env['CCVERSION']))
- # clang accepts -pthread, then warns it is unused.
- if not config.CheckCC():
- announce("ERROR: CC doesn't work")
-
- if ((config.CheckCompilerOption("-pthread") and
- - not sys.platform.startswith('darwin'))):
- + not config.env['target_platform'].startswith('darwin'))):
- config.env.MergeFlags("-pthread")
-
- confdefs = ["/* gpsd_config.h generated by scons, do not hand-hack. */\n"]
- @@ -935,7 +944,7 @@ if not cleaning and not helping:
- # confdefs.append('#endif\n')
- # Reinstated for FreeBSD (below) 16-Aug-2019
-
- - if sys.platform.startswith('linux'):
- + if config.env['target_platform'].startswith('linux'):
- # for cfmakeraw(), strsep(), etc. on CentOS 7
- # glibc 2.19 and before
- # sets __USE_MISC
- @@ -947,7 +956,7 @@ if not cleaning and not helping:
- confdefs.append('#if !defined(_GNU_SOURCE)')
- confdefs.append('#define _GNU_SOURCE 1')
- confdefs.append('#endif\n')
- - elif sys.platform.startswith('darwin'):
- + elif config.env['target_platform'].startswith('darwin'):
- # strlcpy() and SIGWINCH need _DARWIN_C_SOURCE
- confdefs.append('#if !defined(_DARWIN_C_SOURCE)')
- confdefs.append('#define _DARWIN_C_SOURCE 1\n')
- @@ -962,7 +971,7 @@ if not cleaning and not helping:
- "-Wl,-compatibility_version,%s" % libgps_version,
- "-Wl,-install_name,%s/$TARGET.srcpath" %
- installdir('libdir', add_destdir=False)]
- - elif sys.platform.startswith('freebsd'):
- + elif config.env['target_platform'].startswith('freebsd'):
- # for isascii(), putenv(), nice(), strptime()
- confdefs.append('#if !defined(_XOPEN_SOURCE)')
- confdefs.append('#define _XOPEN_SOURCE 700')
- @@ -975,7 +984,7 @@ if not cleaning and not helping:
- confdefs.append('#if !defined(__BSD_VISIBLE)')
- confdefs.append("#define __BSD_VISIBLE 1\n")
- confdefs.append('#endif\n')
- - elif sys.platform.startswith('openbsd'):
- + elif config.env['target_platform'].startswith('openbsd'):
- # required to define u_int in sys/time.h
- confdefs.append('#if !defined(_BSD_SOURCE)')
- confdefs.append("#define _BSD_SOURCE 1\n")
- @@ -984,12 +993,12 @@ if not cleaning and not helping:
- confdefs.append('#if !defined(__BSD_VISIBLE)')
- confdefs.append("#define __BSD_VISIBLE 1\n")
- confdefs.append('#endif\n')
- - elif sys.platform.startswith('netbsd'):
- + elif config.env['target_platform'].startswith('netbsd'):
- # required to get strlcpy(), and more, from string.h
- confdefs.append('#if !defined(_NETBSD_SOURCE)')
- confdefs.append("#define _NETBSD_SOURCE 1\n")
- confdefs.append('#endif\n')
- - elif sys.platform.startswith('sunos5'):
- + elif config.env['target_platform'].startswith('sunos5'):
- # tested with gcc-5.5 on slowlaris 10
- # required to get isascii(), and more, from ctype.h
- confdefs.append('#if !defined(__XPG4_CHAR_CLASS__)')
- @@ -1044,11 +1053,11 @@ if not cleaning and not helping:
- ncurseslibs = ['!ncurses5-config --libs --cflags']
- elif WhereIs('ncursesw5-config'):
- ncurseslibs = ['!ncursesw5-config --libs --cflags']
- - elif sys.platform.startswith('freebsd'):
- + elif config.env['target_platform'].startswith('freebsd'):
- ncurseslibs = ['-lncurses']
- - elif (sys.platform.startswith('darwin') or
- - sys.platform.startswith('openbsd') or
- - sys.platform.startswith('sunos5')):
- + elif (config.env['target_platform'].startswith('darwin') or
- + config.env['target_platform'].startswith('openbsd') or
- + config.env['target_platform'].startswith('sunos5')):
- ncurseslibs = ['-lcurses']
- else:
- announce('Turning off ncurses support, library not found.')
- @@ -1064,7 +1073,8 @@ if not cleaning and not helping:
- announce("pkg_config is confused about the state "
- "of libusb-1.0.")
- usbflags = []
- - elif sys.platform.startswith("freebsd"):
- + elif config.env['target_platform'].startswith('freebsd'):
- + # FIXME: shold directly test for libusb existence.
- confdefs.append("#define HAVE_LIBUSB 1\n")
- usbflags = ["-lusb"]
- else:
- @@ -2498,8 +2508,11 @@ if qt_env:
- binaryinstall.append(GPSLibraryInstall(qt_env, installdir('libdir'),
- compiled_qgpsmmlib, libgps_version))
-
- -if ((not env['debug'] and not env['debug_opt'] and not env['profiling'] and
- - not env['nostrip'] and not sys.platform.startswith('darwin'))):
- +if ((not env['debug'] and
- + not env['debug_opt'] and
- + not env['profiling'] and
- + not env['nostrip'] and
- + not env['target_platform'].startswith('darwin'))):
- env.AddPostAction(binaryinstall, '$STRIP $TARGET')
-
- binaryinstall.append(env.Install(installdir('bindir'), bin_scripts))
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