ninja: add new package

This adds a host as well as a target package.

ninja.mk is provided to execute ninja.

The two patches have been taken from upstream to fix compile issues.

Signed-off-by: Andre Heider <a.heider@gmail.com>

devel/ninja/Makefile

@@ -0,0 +1,77 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=ninja
+PKG_VERSION:=1.9.0
+PKG_RELEASE:=1
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://codeload.github.com/ninja-build/ninja/tar.gz/v$(PKG_VERSION)?
+PKG_HASH:=5d7ec75828f8d3fd1a0c2f31b5b0cea780cdfe1031359228c428c1a48bfcd5b9
+
+PKG_MAINTAINER:=Andre Heider <a.heider@gmail.com>
+PKG_LICENSE:=Apache-2.0
+PKG_LICENSE_FILES:=COPYING
+
+PKG_BUILD_DEPENDS:=ninja/host
+
+include $(INCLUDE_DIR)/host-build.mk
+include $(INCLUDE_DIR)/package.mk
+include ./ninja.mk
+
+CONFIGURE_ARGS:=
+ifneq ($(findstring c,$(OPENWRT_VERBOSE)),)
+  CONFIGURE_ARGS+=--verbose
+endif
+
+define Host/Configure
+endef
+
+define Host/Compile
+	cd $(HOST_BUILD_DIR) && \
+		CXX="$(HOSTCXX)" \
+		CXXFLAGS="$(HOST_CXXFLAGS) $(HOST_CPPFLAGS)" \
+		LDFLAGS="$(HOST_LDFLAGS)" \
+		$(STAGING_DIR_HOST)/bin/$(PYTHON) configure.py --bootstrap $(CONFIGURE_ARGS)
+endef
+
+define Host/Install
+	$(INSTALL_DIR) $(STAGING_DIR_HOSTPKG)/bin
+	$(INSTALL_BIN) $(HOST_BUILD_DIR)/ninja $(STAGING_DIR_HOSTPKG)/bin/
+endef
+
+define Host/Clean
+	$(call Host/Clean/Default)
+	rm -f $(STAGING_DIR_HOSTPKG)/bin/ninja
+endef
+
+define Package/ninja
+  SECTION:=devel
+  CATEGORY:=Development
+  TITLE:=ninja
+  URL:=https://ninja-build.org/
+  DEPENDS:=+libstdcpp
+endef
+
+define Package/ninja/description
+  Ninja is a small build system with a focus on speed. It differs from other build systems in two major respects: it is designed to have its input files generated by a higher-level build system, and it is designed to run builds as fast as possible.
+endef
+
+define Package/ninja/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/ninja $(1)/usr/bin/
+endef
+
+define Build/Configure
+	cd $(PKG_BUILD_DIR) && \
+		CXX="$(TARGET_CXX)" \
+		CXXFLAGS="$(TARGET_CXXFLAGS) $(EXTRA_CXXFLAGS) $(TARGET_CPPFLAGS) $(EXTRA_CPPFLAGS)" \
+		LDFLAGS="$(TARGET_LDFLAGS) $(EXTRA_LDFLAGS)" \
+		$(STAGING_DIR_HOST)/bin/$(PYTHON) configure.py $(CONFIGURE_ARGS)
+endef
+
+define Build/Compile
+	$(call Ninja,-C $(PKG_BUILD_DIR),)
+endef
+
+$(eval $(call HostBuild))
+$(eval $(call BuildPackage,ninja))

devel/ninja/ninja.mk

@@ -0,0 +1,16 @@
+# To execute ninja from you package's Makefile:
+#
+# include ../../devel/ninja/ninja.mk
+#
+# define Build/Compile
+#   $(call Ninja,-C $(MY_NINJA_BUILD_DIR),$(MY_NINJA_ENV_VARS))
+# endef
+
+NINJA_ARGS:=$(filter -j%,$(filter-out -j,$(MAKEFLAGS)))
+ifneq ($(findstring c,$(OPENWRT_VERBOSE)),)
+  NINJA_ARGS+=-v
+endif
+
+define Ninja
+	$(2) $(STAGING_DIR_HOSTPKG)/bin/ninja $(NINJA_ARGS) $(1)
+endef

devel/ninja/patches/010-musl.patch

@@ -0,0 +1,37 @@
+From 567815df38a2ff54ad7478a90bd75c91e434236a Mon Sep 17 00:00:00 2001
+From: makepost <makepost@firemail.cc>
+Date: Mon, 24 Dec 2018 03:13:16 +0200
+Subject: [PATCH] Use st_mtim if st_mtime is macro, fix #1510
+
+In POSIX.1-2008, sys_stat has a st_mtim member and a st_mtime backward
+compatibility macro. Should help avoid hardcoding platform detection.
+---
+ src/disk_interface.cc | 14 ++++----------
+ 1 file changed, 4 insertions(+), 10 deletions(-)
+
+--- a/src/disk_interface.cc
++++ b/src/disk_interface.cc
+@@ -202,19 +202,13 @@ TimeStamp RealDiskInterface::Stat(const
+   // that it doesn't exist.
+   if (st.st_mtime == 0)
+     return 1;
+-#if defined(__APPLE__) && !defined(_POSIX_C_SOURCE)
++#if defined(_AIX)
++  return (int64_t)st.st_mtime * 1000000000LL + st.st_mtime_n;
++#elif defined(__APPLE__)
+   return ((int64_t)st.st_mtimespec.tv_sec * 1000000000LL +
+           st.st_mtimespec.tv_nsec);
+-#elif (_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700 || defined(_BSD_SOURCE) || defined(_SVID_SOURCE) || \
+-       defined(__BIONIC__) || (defined (__SVR4) && defined (__sun)) || defined(__FreeBSD__))
+-  // For glibc, see "Timestamp files" in the Notes of http://www.kernel.org/doc/man-pages/online/pages/man2/stat.2.html
+-  // newlib, uClibc and musl follow the kernel (or Cygwin) headers and define the right macro values above.
+-  // For bsd, see https://github.com/freebsd/freebsd/blob/master/sys/sys/stat.h and similar
+-  // For bionic, C and POSIX API is always enabled.
+-  // For solaris, see https://docs.oracle.com/cd/E88353_01/html/E37841/stat-2.html.
++#elif defined(st_mtime) // A macro, so we're likely on modern POSIX.
+   return (int64_t)st.st_mtim.tv_sec * 1000000000LL + st.st_mtim.tv_nsec;
+-#elif defined(_AIX)
+-  return (int64_t)st.st_mtime * 1000000000LL + st.st_mtime_n;
+ #else
+   return (int64_t)st.st_mtime * 1000000000LL + st.st_mtimensec;
+ #endif

devel/ninja/patches/020-uclibc.patch

@@ -0,0 +1,30 @@
+From 76abf78aac8c56606fb52ea874873d790b9044da Mon Sep 17 00:00:00 2001
+From: "Pawel Hajdan, Jr" <phajdan.jr@chromium.org>
+Date: Mon, 2 Jan 2017 10:42:35 +0000
+Subject: [PATCH] Fix build with uclibc
+
+Resolves #985
+
+This is based on musl implementation,
+http://git.musl-libc.org/cgit/musl/commit/?id=20cbd607759038dca57f84ef7e7b5d44a3088574
+(thanks to jbergstroem@ for reference)
+---
+ src/util.cc | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/src/util.cc
++++ b/src/util.cc
+@@ -572,6 +572,13 @@ double GetLoadAverage() {
+     return -0.0f;
+   return 1.0 / (1 << SI_LOAD_SHIFT) * si.loads[0];
+ }
++#elif defined(__UCLIBC__)
++double GetLoadAverage() {
++  struct sysinfo si;
++  if (sysinfo(&si) != 0)
++    return -0.0f;
++  return 1.0 / (1 << SI_LOAD_SHIFT) * si.loads[0];
++}
+ #else
+ double GetLoadAverage() {
+   double loadavg[3] = { 0.0f, 0.0f, 0.0f };