[Buildroot] [PATCH v3 3/3] package/environment-setup: add cmake alias

[Angelo Compagnucci <angelo.compagnucci@gmail.com>]

In order to simplify the usage of a buildroot toolchain within
the buildroot shell, a "cmake" alias is provided to call cmake
with the correct toolchain file and options.

Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
---
 package/environment-setup/environment-setup    | 1 +
 package/environment-setup/environment-setup.mk | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/package/environment-setup/environment-setup b/package/environment-setup/environment-setup
index 20a6ffb3af..66bb461e05 100644
--- a/package/environment-setup/environment-setup
+++ b/package/environment-setup/environment-setup
@@ -12,6 +12,7 @@ Some tips:
 * Target configure options are already exported
 * To configure do "./configure $CONFIGURE_FLAGS"
 * Alternatively use the alias "configure"
+* A "cmake" alias is available
 
 EOF
 SDK_PATH=$(dirname "${BASH_SOURCE[0]}")
diff --git a/package/environment-setup/environment-setup.mk b/package/environment-setup/environment-setup.mk
index bd74dcb2f4..0f3c954b65 100644
--- a/package/environment-setup/environment-setup.mk
+++ b/package/environment-setup/environment-setup.mk
@@ -23,6 +23,9 @@ define ENVIRONMENT_SETUP_INSTALL_TARGET_CMDS
 		--program-prefix=\"\n" >> $(ENVIRONMENT_SETUP_FILE)
 	printf "alias configure=\"./configure \$${CONFIGURE_FLAGS}\"\n" \
 		>> $(ENVIRONMENT_SETUP_FILE)
+	printf "alias cmake=\"cmake \
+		-DCMAKE_TOOLCHAIN_FILE=$(HOST_DIR)/share/buildroot/toolchainfile.cmake \
+		-DCMAKE_INSTALL_PREFIX=/usr\"\n" >> $(ENVIRONMENT_SETUP_FILE)
 	$(SED) $(ENVIRONMENT_SETUP_HOST_DIR_SED_EXP) $(ENVIRONMENT_SETUP_FILE)
 	printf "PS1=\"\[\e[32m\]buildroot-$(BR2_VERSION)\[\e[m\]:\[\e[34m\]\w\[\e[m\]\$$ \"\n" \
 		>> $(ENVIRONMENT_SETUP_FILE)
-- 
2.17.1