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| author |   James Le Cuirot <chewi@gentoo.org> | 2023-11-04 16:17:15 +0000 |
|---|---|---|
| committer | James Le Cuirot <chewi@gentoo.org> | 2023-11-13 22:13:07 +0000 |
| commit | 6fab286b0d2af2756716e4ba8d8c9aa569f9c6b4 (patch) | |
| tree | 7fb39802810dd1c58a92092c5aed8db53de2aed5 /dev-lang | |
| parent | toolchain-funcs.eclass: Add functions to get pointer size in bytes (diff) | |
| download | gentoo-6fab286b0d2af2756716e4ba8d8c9aa569f9c6b4.tar.gz gentoo-6fab286b0d2af2756716e4ba8d8c9aa569f9c6b4.tar.bz2 gentoo-6fab286b0d2af2756716e4ba8d8c9aa569f9c6b4.zip | |
dev-lang/luajit: Fix cross-compiling from 64-bit to 32-bit
This will only work with a multilib build host toolchain, so probably
just amd64 and ppc64, but it's better than nothing.
Multilib profiles specify an explicit target rather than just -m32 in
LDFLAGS, but this should still do the right thing, and there's probably
no way to query the build profile.
Closes: https://bugs.gentoo.org/627332
Signed-off-by: James Le Cuirot <chewi@gentoo.org>
Diffstat (limited to 'dev-lang')
| -rw-r--r-- | dev-lang/luajit/luajit-2.1.0_beta3_p20220613.ebuild | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/dev-lang/luajit/luajit-2.1.0_beta3_p20220613.ebuild b/dev-lang/luajit/luajit-2.1.0_beta3_p20220613.ebuild index 24063aae5265..01c4aca8c65c 100644 --- a/dev-lang/luajit/luajit-2.1.0_beta3_p20220613.ebuild +++ b/dev-lang/luajit/luajit-2.1.0_beta3_p20220613.ebuild @@ -31,6 +31,21 @@ IUSE="lua52compat static-libs" S="${WORKDIR}/LuaJIT-${GIT_COMMIT}" +src_configure() { + tc-export_build_env + + # You need to use a 32-bit toolchain to build for a 32-bit architecture. + # Some 64-bit toolchains (like amd64 and ppc64) usually have multilib + # enabled, allowing you to build in 32-bit with -m32. This won't work in all + # cases, but it will otherwise just break, so it's worth trying anyway. If + # you're trying to build for 64-bit from 32-bit, then you're screwed, sorry. + # See https://github.com/LuaJIT/LuaJIT/issues/664 for the upstream issue. + if tc-is-cross-compiler && [[ $(tc-get-build-ptr-size) != 4 && $(tc-get-ptr-size) == 4 ]]; then + BUILD_CFLAGS+=" -m32" + BUILD_LDFLAGS+=" -m32" + fi +} + _emake() { emake \ Q= \ @@ -55,7 +70,6 @@ _emake() { } src_compile() { - tc-export_build_env _emake XCFLAGS="$(usex lua52compat "-DLUAJIT_ENABLE_LUA52COMPAT" "")" } |