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librice: fix rice-proto.h lookup by not sysroot-rewriting internal .pc

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do_compile panicked in rice-c/build.rs:

  thread 'main' panicked at rice-c/build.rs:101:
  Could not find rice-proto.h header

rice-c/build.rs builds the internal rice-proto C library in-tree via
"cargo cinstall --prefix <OUT_DIR>/rice-proto-cbuild" and then locates
it through system-deps + pkg-config. The generated rice-proto.pc carries
an absolute prefix pointing into the in-build OUT_DIR. pkgconfig.bbclass
exports PKG_CONFIG_SYSROOT_DIR=${STAGING_DIR_HOST}, and pkgconf prepends
that sysroot onto the already-absolute prefix, yielding a doubled,
non-existent include path (recipe-sysroot/<abs-build-path>/include/rice).
The header search then fails. The internal lib is never staged in the
sysroot, so sysroot rewriting must not be applied to its .pc.

Clear PKG_CONFIG_SYSROOT_DIR so the internal prefix is used verbatim.
openssl-sys is the only other pkg-config consumer in the crate graph and
would break without the sysroot, so point it at the target openssl
directly via OPENSSL_LIB_DIR/OPENSSL_INCLUDE_DIR (openssl-sys returns
those and skips its pkg-config probe when both are set). Verified a clean
build: rice-proto.h is found and librice-proto/librice-io plus the header
are packaged.

Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>
This commit is contained in:
Khem Raj
2026-07-21 00:32:01 +00:00
parent f1e6448c60
commit 8a7404aa72
1 changed files with 16 additions and 0 deletions
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meta-oe/recipes-support/librice/librice_0.4.3.bb
+16
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@@ -15,3 +15,19 @@ require ${PN}-crates.inc
CARGO_BUILD_FLAGS += " --workspace"
export LIBCLANG_PATH = "${STAGING_LIBDIR_NATIVE}/libclang.so"
# rice-c/build.rs builds the internal rice-proto C library in-tree (via
# "cargo cinstall") and then locates it through system-deps + pkg-config.
# The generated rice-proto.pc carries an absolute prefix pointing at the
# in-build OUT_DIR (.../rice-c-<hash>/out/rice-proto-cbuild). pkgconf prepends
# PKG_CONFIG_SYSROOT_DIR (=recipe-sysroot) to that already-absolute prefix,
# producing a doubled, non-existent include path and making build.rs panic
# with "Could not find rice-proto.h header". The internal lib is not staged in
# the sysroot, so no sysroot rewriting must be applied to its .pc file.
# Clear PKG_CONFIG_SYSROOT_DIR for the build so the internal prefix is used
# verbatim. openssl-sys is the only other pkg-config consumer here, so feed it
# the sysroot openssl explicitly (this bypasses its pkg-config probe entirely,
# see openssl-sys find_normal.rs) to keep it pointed at the target sysroot.
export PKG_CONFIG_SYSROOT_DIR = ""
export OPENSSL_LIB_DIR = "${STAGING_LIBDIR}"
export OPENSSL_INCLUDE_DIR = "${STAGING_INCDIR}"