mirror of
https://github.com/ilyakooo0/nixpkgs.git
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48 lines
2.0 KiB
Diff
48 lines
2.0 KiB
Diff
commit 637b7ce639d54e617170433aa9596176b167d085
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Author: sternenseemann <0rpkxez4ksa01gb3typccl0i@systemli.org>
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Date: Thu Mar 18 01:07:49 2021 +0100
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Allow building without ocamlfind and opam
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This change is the result of my first go at packaging ocaml-freestanding
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for NixOS. Our build infrastructure for ocaml there is completely
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independent of opam at the moment, so depending on opam for the build
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time is not an option, especially in this case where the information it
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would give us would be garbage.
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Fortunately the build environment plays nicely with pkg-config which is
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already heavily used by ocaml-freestanding. This patch leaves pkg-config
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to its own devices if opam is not present (it can be assisted by a
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manually set PKG_CONFIG_PATH environment variable).
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Additionally, in configure.sh we check if the target ocaml source
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directory already exists. This allows for building ocaml-freestanding
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without the ocaml-src package (which would be unnecessarily cumbersome
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to package for NixOS) and ocamlfind (one less dependency is always a
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nice bonus). The Makefile needs no fix since the target ocaml/Makefile
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won't be built if it's already present.
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diff --git a/configure.sh b/configure.sh
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index 4d154ed..c254f7b 100755
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--- a/configure.sh
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+++ b/configure.sh
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@@ -1,6 +1,8 @@
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#!/bin/sh
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-export PKG_CONFIG_PATH=$(opam config var prefix)/lib/pkgconfig
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+if command -v opam &> /dev/null; then
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+ export PKG_CONFIG_PATH=$(opam config var prefix)/lib/pkgconfig
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+fi
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pkg_exists() {
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pkg-config --exists "$@"
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}
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@@ -21,7 +23,7 @@ if [ -z "${PKG_CONFIG_DEPS}" ]; then
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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
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exit 1
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fi
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-ocamlfind query ocaml-src >/dev/null || exit 1
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+[ -e "$(dirname "$0")/ocaml" ] || ocamlfind query ocaml-src >/dev/null || exit 1
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FREESTANDING_CFLAGS="$(pkg-config --cflags ${PKG_CONFIG_DEPS})"
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BUILD_ARCH="$(uname -m)"
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