[Buildroot] [git commit] package/pkg-python.mk: do not set empty variables

[Buildroot] [git commit] package/pkg-python.mk: do not set empty variables

[Thomas Petazzoni]

commit: https://git.buildroot.net/buildroot/commit/?id=f796ac3fedc0a5b47e368d4ba79afdcd69609703
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

Similarly to what we just did for conditionally-set-empty variables,
unconditionally setting empty variables serves no purpose in Makefiles,
as unset variables are just expanded as empty...

Even though we have numerous python packages, the speed gain was not
measurable, with delta much less than the noise.

Still, for consistency, we just do not set those variables.

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
---
 package/pkg-python.mk | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/package/pkg-python.mk b/package/pkg-python.mk
index ce0fc97283..4cc416cea0 100644
--- a/package/pkg-python.mk
+++ b/package/pkg-python.mk
@@ -127,7 +127,6 @@ $(2)_BASE_INSTALL_STAGING_OPTS = $$(PKG_PYTHON_DISTUTILS_INSTALL_STAGING_OPTS)
 else
 $(2)_BASE_ENV         = $$(HOST_PKG_PYTHON_DISTUTILS_ENV)
 $(2)_BASE_BUILD_TGT   = build
-$(2)_BASE_BUILD_OPTS   =
 $(2)_BASE_INSTALL_OPTS = $$(HOST_PKG_PYTHON_DISTUTILS_INSTALL_OPTS)
 endif
 # Setuptools
@@ -135,13 +134,11 @@ else ifeq ($$($(2)_SETUP_TYPE),setuptools)
 ifeq ($(4),target)
 $(2)_BASE_ENV         = $$(PKG_PYTHON_SETUPTOOLS_ENV)
 $(2)_BASE_BUILD_TGT   = build
-$(2)_BASE_BUILD_OPTS   =
 $(2)_BASE_INSTALL_TARGET_OPTS  = $$(PKG_PYTHON_SETUPTOOLS_INSTALL_TARGET_OPTS)
 $(2)_BASE_INSTALL_STAGING_OPTS = $$(PKG_PYTHON_SETUPTOOLS_INSTALL_STAGING_OPTS)
 else
 $(2)_BASE_ENV         = $$(HOST_PKG_PYTHON_SETUPTOOLS_ENV)
 $(2)_BASE_BUILD_TGT   = build
-$(2)_BASE_BUILD_OPTS   =
 $(2)_BASE_INSTALL_OPTS = $$(HOST_PKG_PYTHON_SETUPTOOLS_INSTALL_OPTS)
 endif
 else
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