Add support for deb build profiles env variable (#15858)

Add support for a separate DEB_BUILD_PROFILES environment variable, to
be able to set build profiles. This may be used to specify whether
python 2 bindings/libraries should be built, or what configuration
options should be specified for a package.

This also makes it easier to append/remove build profiles from our rules
files, which will be needed for the sairedis build.

Signed-off-by: Saikrishna Arcot <sarcot@microsoft.com>

rules/sairedis.mk

@@ -46,7 +46,7 @@ $(LIBSAIMETADATA_DBG)_RDEPENDS += $(LIBSAIMETADATA)
 $(eval $(call add_derived_package,$(LIBSAIREDIS),$(LIBSAIMETADATA_DBG)))
 
 ifeq ($(ENABLE_PY2_MODULES), n)
-    $(LIBSAIREDIS)_BUILD_ENV += DEB_BUILD_PROFILES=nopython2
+    $(LIBSAIREDIS)_DEB_BUILD_PROFILES += nopython2
 endif
 
 # The .c, .cpp, .h & .hpp files under src/{$DBG_SRC_ARCHIVE list}

rules/swss-common.mk

@@ -21,7 +21,7 @@ ifeq ($(ENABLE_PY2_MODULES), y)
     PYTHON_SWSSCOMMON = python-swsscommon_$(LIBSWSSCOMMON_VERSION)_$(CONFIGURED_ARCH).deb
     $(eval $(call add_derived_package,$(LIBSWSSCOMMON),$(PYTHON_SWSSCOMMON)))
 else
-    $(LIBSWSSCOMMON)_BUILD_ENV += DEB_BUILD_PROFILES=nopython2
+    $(LIBSWSSCOMMON)_DEB_BUILD_PROFILES += nopython2
 endif
 
 PYTHON3_SWSSCOMMON = python3-swsscommon_$(LIBSWSSCOMMON_VERSION)_$(CONFIGURED_ARCH).deb

rules/syncd.mk

@@ -34,7 +34,7 @@ $(eval $(call add_derived_package,$(SYNCD),$(SYNCD_RPC_DBG)))
 endif
 
 ifeq ($(ENABLE_PY2_MODULES), n)
-    $(SYNCD)_BUILD_ENV += DEB_BUILD_PROFILES=nopython2
+    $(SYNCD)_DEB_BUILD_PROFILES += nopython2
 endif
 
 endif

slave.mk

@@ -738,8 +738,8 @@ $(addprefix $(DEBS_PATH)/, $(SONIC_DPKG_DEBS)) : $(DEBS_PATH)/% : .platform $$(a
 		if [ -f ./autogen.sh ]; then ./autogen.sh $(LOG); fi
 		$(SETUP_OVERLAYFS_FOR_DPKG_ADMINDIR)
 		$(if $($*_DPKG_TARGET),
-			${$*_BUILD_ENV} DEB_BUILD_OPTIONS="${DEB_BUILD_OPTIONS_GENERIC} ${$*_DEB_BUILD_OPTIONS}" $(ANT_DEB_CONFIG) $(CROSS_COMPILE_FLAGS) dpkg-buildpackage -rfakeroot -b $(ANT_DEB_CROSS_OPT) -us -uc -tc -j$(SONIC_CONFIG_MAKE_JOBS) --as-root -T$($*_DPKG_TARGET) --admindir $$mergedir $(LOG),
-			${$*_BUILD_ENV} DEB_BUILD_OPTIONS="${DEB_BUILD_OPTIONS_GENERIC} ${$*_DEB_BUILD_OPTIONS}" $(ANT_DEB_CONFIG) $(CROSS_COMPILE_FLAGS) dpkg-buildpackage -rfakeroot -b $(ANT_DEB_CROSS_OPT) -us -uc -tc -j$(SONIC_CONFIG_MAKE_JOBS) --admindir $$mergedir $(LOG)
+			${$*_BUILD_ENV} DEB_BUILD_OPTIONS="${DEB_BUILD_OPTIONS_GENERIC} ${$*_DEB_BUILD_OPTIONS}" DEB_BUILD_PROFILES="${$*_DEB_BUILD_PROFILES}" $(ANT_DEB_CONFIG) $(CROSS_COMPILE_FLAGS) dpkg-buildpackage -rfakeroot -b $(ANT_DEB_CROSS_OPT) -us -uc -tc -j$(SONIC_CONFIG_MAKE_JOBS) --as-root -T$($*_DPKG_TARGET) --admindir $$mergedir $(LOG),
+			${$*_BUILD_ENV} DEB_BUILD_OPTIONS="${DEB_BUILD_OPTIONS_GENERIC} ${$*_DEB_BUILD_OPTIONS}" DEB_BUILD_PROFILES="${$*_DEB_BUILD_PROFILES}" $(ANT_DEB_CONFIG) $(CROSS_COMPILE_FLAGS) dpkg-buildpackage -rfakeroot -b $(ANT_DEB_CROSS_OPT) -us -uc -tc -j$(SONIC_CONFIG_MAKE_JOBS) --admindir $$mergedir $(LOG)
 		)
 		popd $(LOG_SIMPLE)
 		# Clean up