From a68f3d62aa76ae724fbd4a630bb1c7bb505c5930 Mon Sep 17 00:00:00 2001
From: Dirk Zimoch <dirk.zimoch@psi.ch>
Date: Tue, 26 May 2020 15:10:20 +0200
Subject: [PATCH] add cross compilation for NI CompactRIO RT-Linux

---
 configure/os/CONFIG.Common.nilrt7-armv7a     | 18 ++++++++++++++++++
 configure/os/CONFIG_SITE.RHEL7-x86_64.Common |  4 ++++
 2 files changed, 22 insertions(+)
 create mode 100644 configure/os/CONFIG.Common.nilrt7-armv7a

diff --git a/configure/os/CONFIG.Common.nilrt7-armv7a b/configure/os/CONFIG.Common.nilrt7-armv7a
new file mode 100644
index 000000000..1457097ff
--- /dev/null
+++ b/configure/os/CONFIG.Common.nilrt7-armv7a
@@ -0,0 +1,18 @@
+# National Instruments CompactRIO running LabView RT 19.5.1
+
+# Include definitions common to all Linux targets
+include $(CONFIG)/os/CONFIG.Common.linuxCommon
+
+ARCH_CLASS = arm
+
+GNU_TARGET = arm-linux-gnu
+
+SYSROOT = /opt/LabVIEW-RT-19.5.1/arm/sysroots/armv7a-vfp-neon-nilrt-linux-gnueabi
+
+ARCH_DEP_CPPFLAGS += -march=armv7-a -mthumb-interwork -mfloat-abi=softfp -mfpu=neon
+ARCH_DEP_CPPFLAGS += --sysroot=$(SYSROOT)
+ARCH_DEP_CPPFLAGS += -I$(SYSROOT)/usr/include/c++/4.7.2/arm-nilrt-linux-gnueabi/
+ARCH_DEP_CPPFLAGS += -I$(SYSROOT)/usr/include/c++/4.7.2/
+ARCH_DEP_LDFLAGS  += --sysroot=$(SYSROOT)
+
+COMMANDLINE_LIBRARY = READLINE_NCURSES
diff --git a/configure/os/CONFIG_SITE.RHEL7-x86_64.Common b/configure/os/CONFIG_SITE.RHEL7-x86_64.Common
index 7bfb61ee2..6259da533 100644
--- a/configure/os/CONFIG_SITE.RHEL7-x86_64.Common
+++ b/configure/os/CONFIG_SITE.RHEL7-x86_64.Common
@@ -13,4 +13,8 @@ CROSS_COMPILER_TARGET_ARCHS += SL6-x86
 # Zynq
 CROSS_COMPILER_TARGET_ARCHS += yocto21-aarch64
 
+# NI Linux Real-Time 7.x
+# requires RPM gcc-c++-arm-linux-gnu
+CROSS_COMPILER_TARGET_ARCHS += nilrt7-armv7a
+
 include $(CONFIG)/os/CONFIG_SITE.linux-x86_64.Common