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| author | Mike Frysinger <vapier@gentoo.org> | 2023-01-02 21:16:19 -0500 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2023-01-02 21:16:19 -0500 |
| commit | 80636a54bcfa2bca3dc8f7de4a7825f86585b1f1 (patch) | |
| tree | 8ce9098ef414b136eda2416a8155d70dd9db6279 /sim/bpf | |
| parent | 3b89a7b8ce97e7e3773bbd1ebcf23b269b2d6669 (diff) | |
| download | gdb-80636a54bcfa2bca3dc8f7de4a7825f86585b1f1.zip gdb-80636a54bcfa2bca3dc8f7de4a7825f86585b1f1.tar.gz gdb-80636a54bcfa2bca3dc8f7de4a7825f86585b1f1.tar.bz2 | |
sim: build: move generated headers to built sources
Automake's automatic header deptracking has a bootstrap problem where
it can't detect generated headers when compiling. We've been handling
that by adding a custom SIM_ALL_RECURSIVE_DEPS variable, but that only
works when building objects recursively in subdirs. As we move those
out to the top-level, we don't have any recursive steps anymore. The
Automake approach is to declare those headers in BUILT_SOURCES.
This isn't completely foolproof as the Automake manual documents: it
only activates for `make all`, not `make foo.o`, but that shouldn't be
a huge limitation as it only affects the initial compile. After that,
rebuilds should work fine.
Diffstat (limited to 'sim/bpf')
| -rw-r--r-- | sim/bpf/local.mk | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sim/bpf/local.mk b/sim/bpf/local.mk index 7221daf..4ba1f46 100644 --- a/sim/bpf/local.mk +++ b/sim/bpf/local.mk @@ -23,11 +23,13 @@ noinst_PROGRAMS += %D%/run -%C%_BUILD_OUTPUTS = \ +## List all generated headers to help Automake dependency tracking. +BUILT_SOURCES += \ %D%/eng-le.h \ + %D%/eng-be.h +%C%_BUILD_OUTPUTS = \ %D%/mloop-le.c \ %D%/stamp-mloop-le \ - %D%/eng-be.h \ %D%/mloop-be.c \ %D%/stamp-mloop-be |