partial Merge bitcoin/bitcoin#23619: build: Propagate user-defined flags to host packages

a3a2bd9e8ad360a63cc8bdfc365d8bfd25ecc720 ci: Drop no longer needed package-specific flags (Hennadii Stepanov)
071eef1e974f128131afe6c6b5c68a430c64687a build: Propagate user-defined flags to host packages (Hennadii Stepanov)

Pull request description:

  On master (4f8b1f8759301d2553183e14f72444a0f1d80725) `{CPP,C,CXX,LD}FLAGS` that are specified in the command line are not propagated to packages:
  ```
  $ make --no-print-directory -C depends print-libevent_cxxflags CXXFLAGS=-some-fancy-flag
  libevent_cxxflags=-pipe -O2
  ```

  This PR:
  - propagates `{CPP,C,CXX,LD}FLAGS` to host packages:
  ```
  $ make --no-print-directory -C depends print-libevent_cxxflags CXXFLAGS=-some-fancy-flag
  libevent_cxxflags= -some-fancy-flag
  ```
  - does not propagate `{CPP,C,CXX,LD}FLAGS` to native packages:
  ```
  $ make --no-print-directory -C depends print-native_b2_cxxflags CXXFLAGS=-some-fancy-flag
  native_b2_cxxflags=
  ```
  - actually addresses the https://github.com/bitcoin/bitcoin/pull/23551#issuecomment-973896518

ACKs for top commit:
  TheCharlatan:
    Code review ACK a3a2bd9e8ad360a63cc8bdfc365d8bfd25ecc720

Tree-SHA512: 243d6b1b0e9c5de46debc36de62a77b6b4d6f638940fd530040c219956ec624e321b0c25290fed164e3a8c88befa7b97b20f765d7b9a428c269b3720f21da099
This commit is contained in:
fanquake 2023-01-30 14:31:43 +00:00 committed by pasta
parent 7cdacdc1ad
commit a23eee1938
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@ -29,8 +29,13 @@ host_$1=$$($(host_arch)_$(host_os)_$1)
endef endef
define add_host_flags_func define add_host_flags_func
ifeq ($(filter $(origin $1),undefined default),)
$(host_arch)_$(host_os)_$1 =
$(host_arch)_$(host_os)_$(release_type)_$1 = $($1)
else
$(host_arch)_$(host_os)_$1 += $($(host_os)_$1) $(host_arch)_$(host_os)_$1 += $($(host_os)_$1)
$(host_arch)_$(host_os)_$(release_type)_$1 += $($(host_os)_$(release_type)_$1) $(host_arch)_$(host_os)_$(release_type)_$1 += $($(host_os)_$(release_type)_$1)
endif
host_$1 = $$($(host_arch)_$(host_os)_$1) host_$1 = $$($(host_arch)_$(host_os)_$1)
host_$(release_type)_$1 = $$($(host_arch)_$(host_os)_$(release_type)_$1) host_$(release_type)_$1 = $$($(host_arch)_$(host_os)_$(release_type)_$1)
endef endef