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An OCaml cross-toolchain for iOS and several useful libraries

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cross-compiler ocaml ios-toolchain opam

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yunxing jordwalke gerdstolpmann saschatimme wokalski wiltonlazary markghayden rigdern keigoi briskml abate smorimoto ajbt200128 dboris

opam-cross-ios's Issues

ocamlfind: Package `threads' not found

macOS Sonoma, M1 Mac Mini.

After following the README instructions for setting up a 5.0.0 switch for the simulator (ARCH=arm64 SUBARCH=arm64) attempting to build the sample program results in an ocamlfind error:

ocamlfind -toolchain ios ocamlopt -package re.pcre -linkpkg -output-complete-obj test_pcre.ml -o test_pcre.o
ocamlfind: Package `threads' not found

Querying threads does work:

ocamlfind query threads
/Users/nickmain/.opam/ios-sim/lib/ocaml/threads

libpng-ios-sys

URL link is no longer valid. The link below works:

https://sourceforge.net/projects/libpng/files/libpng16/older-releases/1.6.21/libpng-1.6.21.tar.gz

arm32 should be armv7

The ioscaml.sh generates an armv7s target for arm32. I believe this should be armv7, as I think Apple requires armv7 and armv7s is optional.

Cannot get C runtime compiled

I try to get a simple example from http://www.mega-nerd.com/erikd/Blog/CodeHacking/Ocaml/index.html running on iOS but end up with the following error:

To my XCode configuration:
I added /Users/sascha/.opam/4.04.0+ios+amd64/ios-sysroot/lib/ocaml/ to my library and header search paths and added libasmrun.a from /Users/sascha/.opam/4.04.0+ios+amd64/ios-sysroot/lib/ocaml/ as a library to XCode.

To install everything I followed your readme instructions,

Any assistance would be greatly appreciated!

updated repo

FYI, I have upgraded this repo to OPAM 2.0 format, added new versions of cross toolchains, and ported extra packages in dboris/opam-cross-ios. Let me know if you are interested in some or all of these changes, and I can submit a PR.

update

Hi, could you please update this project for OCaml 4.04.1+?

Support for Apple Silicon

I am attempting to follow the instructions in the readme and get the following errors for opam install ocaml-ios re-ios:

  * Missing dependency:
    - ocaml-ios → ocaml-ios64 >= 5.0.0
    unmet availability conditions: 'arch = "x86_64"'

I deviated from the instructions when installing conf-ios by using ARCH=arm64 SUBARCH=arm64 PLATFORM=iPhoneSimulator since the iOS simulator on Apple Silicon is now Arm, not Intel. I assume this is the cause of the errors.

Please take this into account when updating this package.

Up it to 4.03.0

Could you up to this 4.03.0?

ocaml-ios install error

Would love to get some guidance how to resolve the following error:

opam install ocaml-ios re-ios
The following dependencies couldn't be met:
  - ocaml-ios → ocaml-ios32
      unmet availability conditions: conf-ios:arch = "arm" | conf-ios:arch = "i386"
  - ocaml-ios → ocaml-ios64
      unmet availability conditions: conf-ios:arch = "arm64" | conf-ios:arch = "amd64"

No solution found, exiting

Instructions lead to missing iPhone version.

Here's what gets written to conf-ios when following the instructions in README.md:

If I see how to update the README, or other I'll try to send a PR. Thanks.

arch: "arm64"
subarch: "arm64"
platform: "iPhoneOS"
sdk: "9.3"
sysroot:
  "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.3.sdk"
cflags:
  "-arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.3.sdk -miphoneos-version-min="
ldflags:
  "-Wl,-syslibroot,/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.3.sdk"
triple: "arm-apple-darwin"
triplereal: "aarch64-apple-darwin"

question about cross for Mac OS from Linux.

Hello, I am not sure if this is the right repo, but is there a plan to support cross-compilation from x64 Linux to x64/arm64 Mac? If there are big obstacles for that is there any description of them to estimate the cost of such support?

What about the reverted scenario of host mac and target linux?

Thank you.

Xcode 9 "prohibits" use of system() on IOS

See output below for build with ios32.

The definition in stdlib.h for system is as follows:

__swift_unavailable_on("Use posix_spawn APIs or NSTask instead.", "Process spawning is unavailable")
__API_AVAILABLE(macos(10.0)) __IOS_PROHIBITED
__WATCHOS_PROHIBITED __TVOS_PROHIBITED
int system(const char *) __DARWIN_ALIAS_C(system);

clang -arch armv7 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.0.sdk -miphoneos-version-min=9.0 -O2 -DCAML_NAME_SPACE -Wall -c -o sys.o sys.c

stderr

[...]

./caml/misc.h:142:34: note: expanded from macro 'CAML_SYS_SYSTEM'

#define CAML_SYS_SYSTEM(command) system(command)

^

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.0.sdk/usr/include/stdlib.h:195:6: note: 'system' has been explicitly marked unavailable here

int system(const char *) __DARWIN_ALIAS_C(system);

^

1 error generated.

make[2]: *** [sys.o] Error 1

make[1]: *** [coldstart] Error 2

make: *** [world] Error 2

tgls-ios doesn't seem to install

We tried to install tgls-ios and got the following errors. Please see output below & let me know if you need further details.

--Mark


The following actions will be performed:
  ∗  install tgls-ios 0.8.5

=-=- Gathering sources =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=  🐫 

�[KProcessing  1/1: [tgls-ios: http]
�[K
�[KProcessing  1/1: [tgls-ios: http]
�[K[tgls-ios.0.8.5] http://erratique.ch/software/tgls/releases/tgls-0.8.5.tbz downloaded

=-=- Processing actions -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=  🐫 

�[KProcessing  1/1: [tgls-ios: env ocaml]
�[K[ERROR] The compilation of tgls-ios failed at "env TOPKG_CONF_TOOLCHAIN=ios
        TGLS_HOST_OS=Linux ocaml pkg/pkg.ml build --pinned false --with-gl
        false".

�[KProcessing  1/1: [tgls-ios: ocamlfind ios]
#=== ERROR while installing tgls-ios.0.8.5 ====================================#
# opam-version         1.2.2
# os                   darwin
# command              env TOPKG_CONF_TOOLCHAIN=ios TGLS_HOST_OS=Linux ocaml pkg/pkg.ml build --pinned false --with-gl false
# path                 /Users/mhayden/.opam/ios32/build/tgls-ios.0.8.5
# compiler             4.04.0+32bit
# exit-code            1
# env-file             /Users/mhayden/.opam/ios32/build/tgls-ios.0.8.5/tgls-ios-8216-d2c37b.env
# stdout-file          /Users/mhayden/.opam/ios32/build/tgls-ios.0.8.5/tgls-ios-8216-d2c37b.out
# stderr-file          /Users/mhayden/.opam/ios32/build/tgls-ios.0.8.5/tgls-ios-8216-d2c37b.err
### stdout ###
# ocamlfind ocamlopt unix.cmxa -I /Users/mhayden/.opam/ios32/lib/ocamlbuild /Users/mhayden/.opam/ios32/lib/ocamlbuild/ocamlbuildlib.cmxa -linkpkg myocamlbuild.ml /Users/mhayden/.opam/ios32/lib/ocamlbuild/ocamlbuild.cmx -o myocamlbuild
# ocamlfind ocamldep -package ctypes -package bytes -modules src/tgles2.ml > src/tgles2.ml.depends
# + ocamlfind ocamldep -package ctypes -package bytes -modules src/tgles2.ml > src/tgles2.ml.depends
# ocamlfind: Package `ctypes' not found
# Command exited with code 2.
### stderr ###
# pkg.ml: [ERROR] cmd ['ocamlbuild' '-use-ocamlfind' '-classic-display' '-tag' 'debug'
# [...]
#      'README.md' 'src/tgles2.a' 'src/tgles2.cmxa' 'src/tgles2.cma'
#      'src/tgles2.cmx' 'src/tgles2.cmi' 'src/tgles2.mli' 'src/tgles3.a'
#      'src/tgles3.cmxa' 'src/tgles3.cma' 'src/tgles3.cmx' 'src/tgles3.cmi'
#      'src/tgles3.mli' 'src/dlltgles2.so' 'src/libtgles2.a' 'src/dlltgles3.so'
#      'src/libtgles3.a' 'src/tgles2_top.a' 'src/tgles2_top.cmxa'
#      'src/tgles2_top.cma' 'src/tgles2_top.cmx' 'src/tgles3_top.a'
#      'src/tgles3_top.cmxa' 'src/tgles3_top.cma' 'src/tgles3_top.cmx'
#      'test/assert_sizes.c' 'test/trigles2.ml' 'test/trigles3.ml'
#      'test/linkgles2.ml' 'test/linkgles3.ml']: exited with 10


�[K

=-=- Error report -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=  🐫 
The following actions failed
  ∗  install tgls-ios 0.8.5
No changes have been performed