pkgs/development/ocaml-modules/ocaml-freestanding/configurable-binding.patch

   1 commit b273c9f7ab10475787db4d6e09bd4b71b374d0ec
   2 Author: sternenseemann <0rpkxez4ksa01gb3typccl0i@systemli.org>
   3 Date:   Thu Mar 18 01:28:46 2021 +0100
   4
   5     Let user specify solo5-binding to use
   6
   7     This is a little feature for the configure script I wanted to have for
   8     the NixOS package: It allows the user to set PKG_CONFIG_DEPS before
   9     running configure.sh to disable the autodetection mechanism. This is
  10     useful for NixOS as we have all bindings bundled in the solo5 package,
  11     so the result would also be solo5-bindings-xen. Additionally, it allows
  12     us to do the binding selection declaratively and minimize the risk of
  13     accidentally switching backend.
  14
  15     PKG_CONFIG_DEPS seems like a bit of an unappropriate variable name for a
  16     user “interface”, let me know if you want a dedicated environment
  17     variable for this in case there will be more PKG_CONFIG_DEPS.
  18
  19 diff --git a/configure.sh b/configure.sh
  20 index c254f7b..c675a02 100755
  21 --- a/configure.sh
  22 +++ b/configure.sh
  23 @@ -11,13 +11,19 @@ if pkg_exists solo5-bindings-hvt solo5-bindings-spt solo5-bindings-virtio solo5-
  24      echo "ERROR: Only one of solo5-bindings-hvt, solo5-bindings-spt, solo5-bindings-virtio, solo5-bindings-muen, solo5-bindings-genode, solo5-bindings-xen can be installed." 1>&2
  25      exit 1
  26  fi
  27 -PKG_CONFIG_DEPS=
  28 -pkg_exists solo5-bindings-hvt && PKG_CONFIG_DEPS=solo5-bindings-hvt
  29 -pkg_exists solo5-bindings-spt && PKG_CONFIG_DEPS=solo5-bindings-spt
  30 -pkg_exists solo5-bindings-muen && PKG_CONFIG_DEPS=solo5-bindings-muen
  31 -pkg_exists solo5-bindings-virtio && PKG_CONFIG_DEPS=solo5-bindings-virtio
  32 -pkg_exists solo5-bindings-genode && PKG_CONFIG_DEPS=solo5-bindings-genode
  33 -pkg_exists solo5-bindings-xen && PKG_CONFIG_DEPS=solo5-bindings-xen
  34 +if [ -z "${PKG_CONFIG_DEPS}" ]; then
  35 +    PKG_CONFIG_DEPS=
  36 +    pkg_exists solo5-bindings-hvt && PKG_CONFIG_DEPS=solo5-bindings-hvt
  37 +    pkg_exists solo5-bindings-spt && PKG_CONFIG_DEPS=solo5-bindings-spt
  38 +    pkg_exists solo5-bindings-muen && PKG_CONFIG_DEPS=solo5-bindings-muen
  39 +    pkg_exists solo5-bindings-virtio && PKG_CONFIG_DEPS=solo5-bindings-virtio
  40 +    pkg_exists solo5-bindings-genode && PKG_CONFIG_DEPS=solo5-bindings-genode
  41 +    pkg_exists solo5-bindings-xen && PKG_CONFIG_DEPS=solo5-bindings-xen
  42 +else
  43 +    pkg_exists "${PKG_CONFIG_DEPS}" \
  44 +        || (echo "ERROR: ${PKG_CONFIG_DEPS} is not installed" 1>&2; exit 1) \
  45 +        || exit 1
  46 +fi
  47  if [ -z "${PKG_CONFIG_DEPS}" ]; then
  48      echo "ERROR: No supported Solo5 bindings package found." 1>&2
  49      echo "ERROR: solo5-bindings-hvt, solo5-bindings-spt, solo5-bindings-virtio, solo5-bindings-muen, solo5-bindings-genode or solo5-bindings-xen must be installed." 1>&2