[Buildroot] [PATCH v5 1/4] pkg-cmake: add option to select the Ninja generator

[Thomas Devoogdt <thomas@devoogdt.com>]

From: Thomas Devoogdt <thomas.devoogdt@barco.com>

Cmake supports multiple generators. Ninja is a small build system with a
focus on speed. It is mainly used with the meson build system, but also
cmake has very good support for it. This adds optional support for the
Ninja build system.

Usage:
<package>_CMAKE_NINJA = YES

E.g. Commit 16e5c92ff5fd2b44a1126bd7d7538c68ce838213 can now be replaced by:
WEBKITGTK_CMAKE_NINJA = YES

Packages that are selecting Ninja (or overtime another generator),
should also use the _BUILD_{ENV,OPTS} variables iso the _MAKE variables.

No _INSTALL{,_STAGING,_TARGET}_OPTS used so far, so reuse as cmake install opts:

    $ grep '_INSTALL_OPTS' $(grep -rl "cmake-package" package/*/*.mk)
    $ grep '_INSTALL_STAGING_OPTS' $(grep -rl "cmake-package" package/*/*.mk)
    $ grep '_INSTALL_TARGET_OPTS' $(grep -rl "cmake-package" package/*/*.mk)

The _MAKE_{ENV,OPTS} are copied to _BUILD_{ENV,OPTS}, involved packages:

    $ grep '_MAKE_ENV =' $(grep -rl "cmake-package" package/*/*.mk)

    package/netopeer2/netopeer2.mk:NETOPEER2_MAKE_ENV = \
    package/racehound/racehound.mk:RACEHOUND_MAKE_ENV = $(LINUX_MAKE_FLAGS)

    $ grep '_MAKE_OPTS =' $(grep -rl "cmake-package" package/*/*.mk)

    package/mariadb/mariadb.mk:HOST_MARIADB_MAKE_OPTS = import_executables
    package/zeek/zeek.mk:HOST_ZEEK_MAKE_OPTS = binpac bifcl

Only "musepack" seems to overwrite MAKE to enforce -j1, so replace it:

    $ grep '_MAKE =' $(grep -rl "cmake-package" package/*/*.mk)

    package/musepack/musepack.mk:MUSEPACK_MAKE = $(MAKE1)

Signed-off-by: Thomas Devoogdt <thomas.devoogdt@barco.com>
Reviewed-by: John Keeping <john@metanate.com>
---
v2:
 - made generator use more generic, other generators can now easily be added if required
v3:
 - add _GENERATOR_PROGRAM
 - add _GENERATOR_PARALLEL for make
 - dropped BUILD_OPTS
 - fix gdal.mk
v4:
 - restored _MAKE_ENV/_MAKE_OPTS for the Unix Makefiles case
 - always set -j$(PARALLEL_JOBS)
v5:
 - reword commit slightly
---
 package/musepack/musepack.mk |  2 +-
 package/pkg-cmake.mk         | 35 +++++++++++++++++++++++------------
 2 files changed, 24 insertions(+), 13 deletions(-)

diff --git a/package/musepack/musepack.mk b/package/musepack/musepack.mk
index fc66c684a5..d4dd08df36 100644
--- a/package/musepack/musepack.mk
+++ b/package/musepack/musepack.mk
@@ -9,7 +9,7 @@ MUSEPACK_SITE = http://files.musepack.net/source
 MUSEPACK_SOURCE = musepack_src_$(MUSEPACK_VERSION).tar.gz
 MUSEPACK_DEPENDENCIES = libcuefile libreplaygain
 MUSEPACK_INSTALL_STAGING = YES
-MUSEPACK_MAKE = $(MAKE1)
+MUSEPACK_BUILD_OPTS = -j1
 MUSEPACK_LICENSE = BSD-3-Clause (*mpcdec), LGPL-2.1+ (*mpcenc)
 MUSEPACK_LICENSE_FILES = libmpcdec/COPYING libmpcenc/quant.c
 
diff --git a/package/pkg-cmake.mk b/package/pkg-cmake.mk
index 8c375779cb..36ab88d3a1 100644
--- a/package/pkg-cmake.mk
+++ b/package/pkg-cmake.mk
@@ -51,11 +51,6 @@ endif
 
 define inner-cmake-package
 
-$(2)_MAKE			?= $$(MAKE)
-$(2)_INSTALL_OPTS		?= install
-$(2)_INSTALL_STAGING_OPTS	?= DESTDIR=$$(STAGING_DIR) install/fast
-$(2)_INSTALL_TARGET_OPTS	?= DESTDIR=$$(TARGET_DIR) install/fast
-
 $(3)_SUPPORTS_IN_SOURCE_BUILD ?= YES
 
 
@@ -65,6 +60,20 @@ else
 $(2)_BUILDDIR			= $$($(2)_SRCDIR)/buildroot-build
 endif
 
+ifeq ($$($(3)_CMAKE_NINJA),YES)
+$(2)_DEPENDENCIES	+= host-ninja
+$(2)_GENERATOR		= "Ninja"
+$(2)_GENERATOR_PROGRAM	= $(HOST_DIR)/bin/ninja
+else
+$(2)_GENERATOR		= "Unix Makefiles"
+$(2)_GENERATOR_PROGRAM	= $(firstword $(BR2_MAKE))
+
+# Generator specific code (make) should be avoided,
+# but for now, copy them to the new variables.
+$(2)_BUILD_ENV		?= $$($(2)_MAKE_ENV)
+$(2)_BUILD_OPTS		?= -- $$($(2)_MAKE_OPTS)
+endif
+
 #
 # Configure step. Only define it if not already defined by the package
 # .mk file. And take care of the differences between host and target
@@ -88,7 +97,8 @@ define $(2)_CONFIGURE_CMDS
 	rm -f CMakeCache.txt && \
 	PATH=$$(BR_PATH) \
 	$$($$(PKG)_CONF_ENV) $$(BR2_CMAKE) $$($$(PKG)_SRCDIR) \
-		-G"Unix Makefiles" \
+		-G$$($$(PKG)_GENERATOR) \
+		-DCMAKE_MAKE_PROGRAM="$$($$(PKG)_GENERATOR_PROGRAM)" \
 		-DCMAKE_TOOLCHAIN_FILE="$$(HOST_DIR)/share/buildroot/toolchainfile.cmake" \
 		-DCMAKE_INSTALL_PREFIX="/usr" \
 		-DCMAKE_INSTALL_RUNSTATEDIR="/run" \
@@ -119,7 +129,8 @@ define $(2)_CONFIGURE_CMDS
 	PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 \
 	PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 \
 	$$($$(PKG)_CONF_ENV) $$(BR2_CMAKE) $$($$(PKG)_SRCDIR) \
-		-G"Unix Makefiles" \
+		-G$$($$(PKG)_GENERATOR) \
+		-DCMAKE_MAKE_PROGRAM="$$($$(PKG)_GENERATOR_PROGRAM)" \
 		-DCMAKE_INSTALL_SO_NO_EXE=0 \
 		-DCMAKE_FIND_ROOT_PATH="$$(HOST_DIR)" \
 		-DCMAKE_FIND_ROOT_PATH_MODE_PROGRAM="BOTH" \
@@ -166,11 +177,11 @@ $(2)_DEPENDENCIES += $(BR2_CMAKE_HOST_DEPENDENCY)
 ifndef $(2)_BUILD_CMDS
 ifeq ($(4),target)
 define $(2)_BUILD_CMDS
-	$$(TARGET_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_MAKE_OPTS) -C $$($$(PKG)_BUILDDIR)
+	$$(TARGET_MAKE_ENV) $$($$(PKG)_BUILD_ENV) $$(BR2_CMAKE) --build $$($$(PKG)_BUILDDIR) -j$(PARALLEL_JOBS) $$($$(PKG)_BUILD_OPTS)
 endef
 else
 define $(2)_BUILD_CMDS
-	$$(HOST_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_MAKE_OPTS) -C $$($$(PKG)_BUILDDIR)
+	$$(HOST_MAKE_ENV) $$($$(PKG)_BUILD_ENV) $$(BR2_CMAKE) --build $$($$(PKG)_BUILDDIR) -j$(PARALLEL_JOBS) $$($$(PKG)_BUILD_OPTS)
 endef
 endif
 endif
@@ -181,7 +192,7 @@ endif
 #
 ifndef $(2)_INSTALL_CMDS
 define $(2)_INSTALL_CMDS
-	$$(HOST_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_MAKE_OPTS) $$($$(PKG)_INSTALL_OPTS) -C $$($$(PKG)_BUILDDIR)
+	$$(HOST_MAKE_ENV) $$($$(PKG)_BUILD_ENV) $$(BR2_CMAKE) --install $$($$(PKG)_BUILDDIR) $$($$(PKG)_INSTALL_OPTS)
 endef
 endif
 
@@ -191,7 +202,7 @@ endif
 #
 ifndef $(2)_INSTALL_STAGING_CMDS
 define $(2)_INSTALL_STAGING_CMDS
-	$$(TARGET_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_MAKE_OPTS) $$($$(PKG)_INSTALL_STAGING_OPTS) -C $$($$(PKG)_BUILDDIR)
+	$$(TARGET_MAKE_ENV) $$($$(PKG)_BUILD_ENV) DESTDIR=$$(STAGING_DIR) $$(BR2_CMAKE) --install $$($$(PKG)_BUILDDIR) $$($$(PKG)_INSTALL_STAGING_OPTS)
 endef
 endif
 
@@ -201,7 +212,7 @@ endif
 #
 ifndef $(2)_INSTALL_TARGET_CMDS
 define $(2)_INSTALL_TARGET_CMDS
-	$$(TARGET_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_MAKE_OPTS) $$($$(PKG)_INSTALL_TARGET_OPTS) -C $$($$(PKG)_BUILDDIR)
+	$$(TARGET_MAKE_ENV) $$($$(PKG)_BUILD_ENV) DESTDIR=$$(TARGET_DIR) $$(BR2_CMAKE) --install $$($$(PKG)_BUILDDIR) $$($$(PKG)_INSTALL_TARGET_OPTS)
 endef
 endif
 
-- 
2.34.1

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